成绩排序

成绩排序主要考察sort排序内规则的写法，cmp

#include <iostream>
#include <algorithm>
#include <cstring>
using namespace std;

const int N = 1e3 + 50;
typedef struct st {
	string name;
	int age;
	double sc;
} s;

s stu[N];

bool cmp(s stu1, s stu2) {
	if (stu1.sc != stu2.sc)
		return stu1.sc < stu2.sc;
	else {
		if (stu1.name != stu2.name)
			return stu1.name < stu2.name;
		else
			return stu1.age < stu2.age;
	}
}

int main() {
	int n;
	cin >> n;
	for (int i = 0; i < n; i++)
		cin >> stu[i].name >> stu[i].age >> stu[i].sc;

	sort(stu, stu + n, cmp);

	for (int i = 0; i < n; i++)
		cout << stu[i].name << " " << stu[i].age << " " << stu[i].sc << endl;

}