View Compilation Error

0_0_25721657_15169.cpp: In function 'int main()':
0_0_25721657_15169.cpp:24:10: error: 'dp' was not declared in this scope
   memset(dp,0,sizeof(dp));
          ^
0_0_25721657_15169.cpp:26:18: error: 'm' was not declared in this scope
   for(int i=1;i<=m;i++) 
                  ^