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arafat-hasanarafat-hasan
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04 Oct, 2018
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11 files changed

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‎Codeforces/AC/gym_100283.cpp

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/*
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* FILE: gym_100283.cpp
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*
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* @author: Arafat Hasan Jenin <opendoor.arafat[at]gmail[dot]com>
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*
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* LINK: https://codeforces.com/gym/100283/problem/E
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*
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* DATE CREATED: 20-09-18 15:35:38 (+06)
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* LAST MODIFIED: 20-09-18 16:47:01 (+06)
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*
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* VERDICT: Accepetd
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*
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* DEVELOPMENT HISTORY:
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* Date Version Description
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* --------------------------------------------------------------------
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* 20-09-18 1.0 Deleted code is debugged code.
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*
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* _/ _/_/_/_/ _/ _/ _/_/_/ _/ _/
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* _/ _/ _/_/ _/ _/ _/_/ _/
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* _/ _/_/_/ _/ _/ _/ _/ _/ _/ _/
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* _/ _/ _/ _/ _/_/ _/ _/ _/_/
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* _/_/ _/_/_/_/ _/ _/ _/_/_/ _/ _/
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*/
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///////////////////////////////////////////////////////////////////////
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#include <iostream>
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#include <climits>
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#include <cmath>
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#include <cstring>
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#include <cctype>
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#include <cstdio>
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#include <cstdlib>
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#include <iomanip>
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#include <utility>
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#include <sstream>
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#include <algorithm>
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#include <stack>
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#include <set>
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#include <list>
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#include <map>
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#include <unordered_map>
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#include <unordered_set>
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#include <queue>
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#include <deque>
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#include <vector>
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#include <tuple>
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#include <stdint.h> //uint32_t
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#include <functional>
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#include <bitset>
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#include <unistd.h> // unsigned int sleep(unsigned int seconds);
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using namespace std;
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typedef long long ll;
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typedef double lf;
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typedef long double llf;
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typedef unsigned long long ull;
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typedef pair<int, int> pii;
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typedef vector<pii> vpii;
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typedef vector<int> vi;
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typedef vector<long long> vl;
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#define _USE_MATH_DEFINES
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#define _FastIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
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#define forr(i, a, b) for (__typeof (a) i = (a); i <= (b); i++)
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#define rof(i, b, a) for (__typeof (a) i = (b); i >= (a); i--)
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#define rep(i, n) for (__typeof (n) i = 0; i < (n); i++)
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#define forit(i, s) for (__typeof ((s).end()) i = (s).begin(); i != (s).end(); ++i)
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#define all(ar) ar.begin(), ar.end()
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#define fill(a, val) memset((a), (val), sizeof((a)))
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#define clr(a) memset((a), 0, sizeof((a)))
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#define sz(a) (int) a.size()
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#define pb push_back
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#ifndef ONLINE_JUDGE
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#define nl cerr << '\n'
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#define sp cerr << ' '
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#define ckk cerr << "###############\n"
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#define debug1(x) cerr << #x << ": " << (x) << '\n'
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#define debug2(x, y) cerr << #x << ": " << (x) << '\t' << #y << ": " << (y) << '\n'
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#define debug3(x, y, z) cerr << #x << ": " << (x) << '\t' << #y << ": " << (y) << '\t' << #z << ": " << (z) << '\n'
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#else
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#define nl
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#define sp
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#define ckk
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#define debug1(x)
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#define debug2(x, y)
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#define debug3(x, y, z)
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#endif
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#define PI acos(-1.0)
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#define INF 0x7fffffff
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#define MOD 1000000007
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#define EPS 1e-7
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#define MAX 10000007 //1e7+7
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////////////////////////// START HERE //////////////////////////
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int main() {
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_FastIO;
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freopen ("ghanophobia.in", "r", stdin);
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int n, cs = 0, ghana, egypt;
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cin >> n;
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while (n--) {
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cin >> egypt; cin.ignore(); cin >> ghana;
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cout << "Case " << ++cs << ": ";
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if (ghana + 6 == egypt + 1) {
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egypt = egypt + 2;
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ghana = ghana * 2 + 6;
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cout << (ghana == egypt ? "PENALTIES" : (ghana < egypt ? "YES" : "NO") );
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} else if (ghana + 6 < egypt + 1) {
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cout << "YES";
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} else {
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cout << "NO";
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}
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cout << endl;
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}
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return 0;
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}

‎Contests/Codeforces/1058/1058A.cpp

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/*
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* FILE: 1058A.cpp
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*
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* @author: Arafat Hasan Jenin <opendoor.arafat[at]gmail[dot]com>
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*
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* LINK:
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*
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* DATE CREATED: 23-09-18 19:06:03 (+06)
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* LAST MODIFIED: 23-09-18 19:08:43 (+06)
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*
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* VERDICT: Accepted
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*
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* DEVELOPMENT HISTORY:
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* Date Version Description
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* --------------------------------------------------------------------
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* 23-09-18 1.0 Deleted code is debugged code.
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*
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* _/ _/_/_/_/ _/ _/ _/_/_/ _/ _/
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* _/ _/ _/_/ _/ _/ _/_/ _/
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* _/ _/_/_/ _/ _/ _/ _/ _/ _/ _/
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* _/ _/ _/ _/ _/_/ _/ _/ _/_/
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* _/_/ _/_/_/_/ _/ _/ _/_/_/ _/ _/
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*/
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///////////////////////////////////////////////////////////////////////
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#include <iostream>
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#include <climits>
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#include <cmath>
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#include <cstring>
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#include <cctype>
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#include <cstdio>
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#include <cstdlib>
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#include <iomanip>
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#include <utility>
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#include <sstream>
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#include <algorithm>
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#include <stack>
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#include <set>
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#include <list>
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#include <map>
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#include <unordered_map>
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#include <unordered_set>
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#include <queue>
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#include <deque>
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#include <vector>
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#include <tuple>
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#include <stdint.h> //uint32_t
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#include <functional>
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#include <bitset>
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#include <unistd.h> // unsigned int sleep(unsigned int seconds);
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using namespace std;
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typedef long long ll;
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typedef double lf;
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typedef long double llf;
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typedef unsigned long long ull;
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typedef pair<int, int> pii;
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typedef vector<pii> vpii;
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typedef vector<int> vi;
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typedef vector<long long> vl;
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#define _USE_MATH_DEFINES
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#define _FastIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
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#define forr(i, a, b) for (__typeof (a) i = (a); i <= (b); i++)
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#define rof(i, b, a) for (__typeof (a) i = (b); i >= (a); i--)
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#define rep(i, n) for (__typeof (n) i = 0; i < (n); i++)
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#define forit(i, s) for (__typeof ((s).end()) i = (s).begin(); i != (s).end(); ++i)
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#define all(ar) ar.begin(), ar.end()
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#define fill(a, val) memset((a), (val), sizeof((a)))
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#define clr(a) memset((a), 0, sizeof((a)))
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#define sz(a) (int) a.size()
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#define pb push_back
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#ifndef ONLINE_JUDGE
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#define nl cerr << '\n'
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#define sp cerr << ' '
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#define ckk cerr << "###############\n"
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#define debug1(x) cerr << #x << ": " << (x) << '\n'
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#define debug2(x, y) cerr << #x << ": " << (x) << '\t' << #y << ": " << (y) << '\n'
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#define debug3(x, y, z) cerr << #x << ": " << (x) << '\t' << #y << ": " << (y) << '\t' << #z << ": " << (z) << '\n'
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#else
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#define nl
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#define sp
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#define ckk
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#define debug1(x)
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#define debug2(x, y)
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#define debug3(x, y, z)
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#endif
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#define PI acos(-1.0)
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#define INF 0x7fffffff
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#define MOD 1000000007
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#define EPS 1e-7
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#define MAX 10000007 //1e7+7
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////////////////////////// START HERE //////////////////////////
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int main() {
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_FastIO;
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int n, tmp;
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cin >> n;
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while (n--) {
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cin >> tmp;
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if (tmp == 1) {
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cout << "HARD\n";
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return 0;
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}
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}
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cout << "EASY\n";
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return 0;
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}
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‎Contests/Codeforces/1058/1058B.cpp

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/*
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* FILE: 1058B.cpp
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*
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* @author: Arafat Hasan Jenin <opendoor.arafat[at]gmail[dot]com>
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*
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* LINK:
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*
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* DATE CREATED: 23-09-18 19:15:50 (+06)
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* LAST MODIFIED: 23-09-18 19:21:14 (+06)
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*
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* VERDICT:
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*
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* DEVELOPMENT HISTORY:
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* Date Version Description
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* --------------------------------------------------------------------
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* 23-09-18 1.0 Deleted code is debugged code.
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*
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* _/ _/_/_/_/ _/ _/ _/_/_/ _/ _/
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* _/ _/ _/_/ _/ _/ _/_/ _/
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* _/ _/_/_/ _/ _/ _/ _/ _/ _/ _/
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* _/ _/ _/ _/ _/_/ _/ _/ _/_/
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* _/_/ _/_/_/_/ _/ _/ _/_/_/ _/ _/
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*/
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///////////////////////////////////////////////////////////////////////
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#include <iostream>
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#include <climits>
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#include <cmath>
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#include <cstring>
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#include <cctype>
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#include <cstdio>
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#include <cstdlib>
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#include <iomanip>
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#include <utility>
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#include <sstream>
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#include <algorithm>
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#include <stack>
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#include <set>
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#include <list>
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#include <map>
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#include <unordered_map>
43+
#include <unordered_set>
44+
#include <queue>
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#include <deque>
46+
#include <vector>
47+
#include <tuple>
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#include <stdint.h> //uint32_t
49+
#include <functional>
50+
#include <bitset>
51+
#include <unistd.h> // unsigned int sleep(unsigned int seconds);
52+
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using namespace std;
54+
55+
typedef long long ll;
56+
typedef double lf;
57+
typedef long double llf;
58+
typedef unsigned long long ull;
59+
typedef pair<int, int> pii;
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typedef vector<pii> vpii;
61+
typedef vector<int> vi;
62+
typedef vector<long long> vl;
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64+
#define _USE_MATH_DEFINES
65+
66+
#define _FastIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
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68+
#define forr(i, a, b) for (__typeof (a) i = (a); i <= (b); i++)
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#define rof(i, b, a) for (__typeof (a) i = (b); i >= (a); i--)
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#define rep(i, n) for (__typeof (n) i = 0; i < (n); i++)
71+
#define forit(i, s) for (__typeof ((s).end()) i = (s).begin(); i != (s).end(); ++i)
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#define all(ar) ar.begin(), ar.end()
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#define fill(a, val) memset((a), (val), sizeof((a)))
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#define clr(a) memset((a), 0, sizeof((a)))
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#define sz(a) (int) a.size()
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#define pb push_back
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#ifndef ONLINE_JUDGE
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#define nl cerr << '\n'
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#define sp cerr << ' '
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#define ckk cerr << "###############\n"
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#define debug1(x) cerr << #x << ": " << (x) << '\n'
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#define debug2(x, y) cerr << #x << ": " << (x) << '\t' << #y << ": " << (y) << '\n'
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#define debug3(x, y, z) cerr << #x << ": " << (x) << '\t' << #y << ": " << (y) << '\t' << #z << ": " << (z) << '\n'
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#else
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#define nl
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#define sp
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#define ckk
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#define debug1(x)
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#define debug2(x, y)
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#define debug3(x, y, z)
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#endif
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#define PI acos(-1.0)
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#define INF 0x7fffffff
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#define MOD 1000000007
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#define EPS 1e-7
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#define MAX 10000007 //1e7+7
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////////////////////////// START HERE //////////////////////////
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double area (int x1, int y1, int x2, int y2, int x3, int y3) {
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return (double) abs ((x1 * (y2 - y3) + x2 * (y3 - y1) + x3 * (y1 - y2)) / 2.0);
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}
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bool check (int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4,
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int x, int y) {
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double A = area (x1, y1, x2, y2, x3, y3) +
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area (x1, y1, x4, y4, x3, y3);
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double A1 = area (x, y, x1, y1, x2, y2);
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double A2 = area (x, y, x2, y2, x3, y3);
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double A3 = area (x, y, x3, y3, x4, y4);
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double A4 = area (x, y, x1, y1, x4, y4);
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return (A == A1 + A2 + A3 + A4);
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}
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int main() {
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_FastIO;
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int n, d, m, x, y;
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cin >> n >> d >> m;
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while (m--) {
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cin >> x >> y;
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bool ans = check (0, d, d, 0, n, n - d, n - d, n, x, y);
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cout << (ans ? "YES\n" : "NO\n");
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}
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return 0;
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}

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