Mã chấm: 39149

Main.cc: In function ‘int main()’:
Main.cc:44:24: error: ‘fg’ was not declared in this scope
         a[i+1] += a[i];fg
                        ^~
Main.cc:21:15: warning: unused variable ‘sum’ [-Wunused-variable]
     int n, i, sum = 0, time = 0;
               ^~~