View Compilation Error

0_0_34009953_27584.cpp: In function 'int main()':
0_0_34009953_27584.cpp:15:33: error: 'memset' was not declared in this scope
   memset(input, 0, sizeof(input));
                                 ^
0_0_34009953_27584.cpp:66:10: error: expected '}' at end of input
  return 0;
          ^