View Compilation Error

0_0_36383979_12618.cpp: In function 'int main()':
0_0_36383979_12618.cpp:34:9: error: 'cout' was not declared in this scope
         cout << dp[a][b] << endl;
         ^
0_0_36383979_12618.cpp:34:29: error: 'endl' was not declared in this scope
         cout << dp[a][b] << endl;
                             ^