90分，求教

#include <iostream>
using namespace std;

struct student {
	string name;
	int egra, cgra, pasa, mon;
	bool lead, west;
};

int sum(student a) {
	int num = 0;

	if (a.egra > 80 && a.pasa >= 1)
		num += 8000;

	if (a.egra > 85 && a.cgra > 80)
		num += 4000;

	if (a.egra > 90)
		num += 2000;

	if (a.egra > 85 && a.west)
		num += 1000;

	if (a.cgra > 80 && a.lead)
		num += 850;

	return num;
}

void sort_for(student *a, int b) {
	for (int i = 0; i <= b - 1; i++) {

		int p = i;

		for (int j = i; j <= b - 1; j++) {

			if (a[j].mon < a[p].mon)
				p = j;
		}

		swap(a[i], a[p]);
	}

}

void print(student *a, int n) {
	for (int i = 0; i <= n - 1; i++) {

		cout << "#" << a[i].name << ":" << a[i].egra << " " << a[i].cgra << " ";

		if (a[i].lead)
			cout << "Y" << " ";
		else
			cout << "N" << " ";

		if (a[i].west)
			cout << "Y" << " ";
		else
			cout << "N" << " ";
		cout << a[i].pasa << endl;
	}

	return ;
}

int main() {
	student a[100];
	int n;

	cin >> n;

	for (int i = 0; i <= n - 1; i++) {

		char k, s;
		cin >> a[i].name >> a[i].egra >> a[i].cgra >> k >> s >> a[i].pasa;

		if (k == 'Y')
			a[i].lead = true;
		else {
			a[i].lead = false;
		}

		if (s == 'Y')
			a[i].west = true;
		else
			a[i].west = false;

	}

	int mon[100], num = 0;

	for (int i = 0; i <= n - 1; i++) {

		a[i].mon = sum(a[i]);
		num += a[i].mon;
	}

	sort_for(a, n);
	cout << a[n - 1].name << endl << a[n - 1].mon << endl << num;
	return 0;
}