2021-Postgraduate-408/PAT/PAT-A/CPP/1012 The Best Rank (25 分).cpp

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

struct node{
	int id, best;
	int score[4], rank[4];
}stu[2005];
int exist[1000000], flag = -1;
bool cmp1(node 1, node b){
	return a.score[flag] > b.score[flag];
}

int main(){
	int n, m, id;
	cin >> n >> m;
	for(int i = 0; i < n; i++){
		cin >> stu[i].id >> stu[i].score[1] >> stu[i].score[2] >> stu[i].score[3];
		stu[i].score[0] = (stu[i].score[1] + stu[i].score[2] + stu[i].score[3]) / 3.0 + 0.5;
	}
	for(flag = 0; flag <= 3; flag++){
		sort(stu, stu + n, cmp1);
		stu[0].rank[flag] = 1;
		for(int i = 1; i < n; i++){
			stu[i].rank[flag] = i + 1;
			if(stu[i].score[flag] == stu[i-1].score[flag])
				stu[i].rank[flag] = stu[i-1].rank[flag];
		}
	}
	for(int i = 0; i < n; i++){
		exist[stu[i].id] = i + 1;
		stu[i].best = 0;
		int minn = stu[i].rank[0];
		for(int j = 1; j <= 3; j++){
			if(stu[i].rank[j] < minn){
				minn = stu[i].rank[j];
				stu[i].best = j;
			}
		}
	}
	char c[5] = {'A', 'C', 'M', 'E'};
	for(int i = 0; i < m; i++){
		cin >> id;
		int temp = exist[id];
		if(temp){
			int best = stu[temp-1].best;
			printf("%d %c\n", stu[temp-1].rank[best], c[best]);
		}else
			printf("N/A\n");
	}
	return 0;
}