Update letter-combinations-of-a-phone-number.cpp

kamyu104 · web-flow · commit c77d682a8c11 · 2020-09-21T23:51:47.000+08:00
diff --git a/C++/letter-combinations-of-a-phone-number.cpp b/C++/letter-combinations-of-a-phone-number.cpp
@@ -16,12 +16,12 @@ class Solution {
         }
         vector<string> result;
         for (int i = 0; i < total; ++i) {
-            int k = i, base = total;
+            int base = total;
             string curr;
             for (const auto& digit : digits) {
                 const auto& choices = lookup[digit - '0'];
                 base /= size(choices);
-                curr.push_back(choices[(k / base) % size(choices)]);
+                curr.push_back(choices[(i / base) % size(choices)]);
             }
             result.emplace_back(move(curr));
         }

Original file line number	Diff line number	Diff line change
`@@ -16,12 +16,12 @@ class Solution {`
`16`	`16`	`}`
`17`	`17`	`vector<string> result;`
`18`	`18`	`for (int i = 0; i < total; ++i) {`
`19`		`- int k = i, base = total;`
	`19`	`+ int base = total;`
`20`	`20`	`string curr;`
`21`	`21`	`for (const auto& digit : digits) {`
`22`	`22`	`const auto& choices = lookup[digit - '0'];`
`23`	`23`	`base /= size(choices);`
`24`		`- curr.push_back(choices[(k / base) % size(choices)]);`
	`24`	`+ curr.push_back(choices[(i / base) % size(choices)]);`
`25`	`25`	`}`
`26`	`26`	`result.emplace_back(move(curr));`
`27`	`27`	`}`