View Compilation Error

0_0_34642780_27364.cpp: In function 'int main()':
0_0_34642780_27364.cpp:70:26: error: 'memset' was not declared in this scope
   memset(dp,-1,sizeof(dp));
                          ^
0_0_34642780_27364.cpp:72:7: error: 'i' was not declared in this scope
   for(i=1;i<=n;i++)
       ^