Run id: 105340

Main.cc: In function 'int main()':
Main.cc:12:15: error: 'j' was not declared in this scope
   for(int i=1;j<=n;i++){
               ^
Main.cc:6:15: warning: unused variable 'abc' [-Wunused-variable]
   int n,sum=0,abc=0;
               ^