View Compilation Error

0_0_20429123_32360.cpp: In function 'int getSum()':
0_0_20429123_32360.cpp:25:31: error: 'memset' was not declared in this scope
  memset(match,-1,sizeof(match));
                               ^
0_0_20429123_32360.cpp: In function 'int main()':
0_0_20429123_32360.cpp:58:23: error: 'memset' was not declared in this scope
   memset(e,0,sizeof(e));
                       ^