Run id: 137958

Main.cc: In function 'int main()':
Main.cc:6:19: error: 'm' was not declared in this scope
  for(int i = a;i<=m;i++){
                   ^
Main.cc:4:8: warning: unused variable 'b' [-Wunused-variable]
  int a,b,sum=0;
        ^
Main.cc:4:10: warning: unused variable 'sum' [-Wunused-variable]
  int a,b,sum=0;
          ^