Update number-of-music-playlists.cpp

Author: kamyu104

C++/number-of-music-playlists.cpp

@@ -14,7 +14,7 @@ class Solution {
             dp[n % 2][n] = (dp[(n - 1) % 2][n - 1] * n) % M;
             for (int l = n + 1; l <= L; ++l) {
                 dp[n % 2][l] = ((dp[n % 2][l - 1] * max(n - K, 0)) % M +
-                            (dp[(n - 1) % 2][l - 1] * n) % M) % M;
+                                (dp[(n - 1) % 2][l - 1] * n) % M) % M;
             }
         }
         return dp[N % 2][L];