View Compilation Error

0_0_25470210_23599.cpp: In function 'int main()':
0_0_25470210_23599.cpp:49:28: error: expected ';' before ')' token
   memset(ans,0,sizeof(ans)));
                            ^
0_0_25470210_23599.cpp:63:21: error: 't' was not declared in this scope
   for(int i=0,j=0;i<t;i=++j) if(ans[i]){
                     ^