牛客网 ACM 竞赛 18839 - 1024: 计算学生总成绩和平均成绩

#include #include using namespace std;

int main() { double score1, score2, score3; cin >> score1 >> score2 >> score3;

double total = score1 + score2 + score3;
double average = total / 3;

cout << fixed << setprecision(2) << total << ' ' << average << endl;

return 0;

}