View Compilation Error

0_0_16836827_6753.cpp: In function 'int main()':
0_0_16836827_6753.cpp:16:27: error: 'memset' was not declared in this scope
      memset(dp,0,sizeof(0));
                           ^
0_0_16836827_6753.cpp:17:32: error: expected ')' before ';' token
      memset(mmax,0,sizeof(mmax);
                                ^