Run id: 84104

Main.cc: In function 'int main()':
Main.cc:18:12: error: 'sum' was not declared in this scope
            sum++;
            ^
Main.cc:22:7: error: 'sum' was not declared in this scope
    if(sum==0){
       ^
Main.cc:12:10: warning: unused variable 'num' [-Wunused-variable]
    int n,num=0,f=0;
          ^
Main.cc:12:16: warning: unused variable 'f' [-Wunused-variable]
    int n,num=0,f=0;
                ^