算法初步——排序 A1012.The Best Rank(25)

#include <bits/stdc++.h>
#include<math.h>
using namespace std;
const int MAX_LEN = 2005;
//const int MAX_D = 31;
struct student{
    int id;
    int Cgrade;
    int Mgrade;
    int Egrade;
    int Agrade;
}stu[MAX_LEN];
int main(){
    int n,m;
    scanf("%d%d",&n,&m);
    int temp[m];
    for(int i =0;i<n;++i){
        scanf("%d",&stu[i].id);
        scanf("%d",&stu[i].Cgrade);
        scanf("%d",&stu[i].Mgrade);
        scanf("%d",&stu[i].Egrade);
        stu[i].Agrade = (stu[i].Cgrade + stu[i].Mgrade + stu[i].Egrade)/3;
    }
    for(int i = 0;i<m;++i){
        scanf("%d",&temp[i]);
    }
    int result = 0;
    int count = 1;
    int digit = 0;
    bool flag = false;
    for(int i =0;i<m;++i){
        for(int j =0;j<n;++j){
            if(temp[i] == stu[j].id){
                digit = j;
                flag = true;
            }
        }
        if(flag == false){
            printf("N/A\n");
            continue;
        }
        else{
            if(stu[digit].Cgrade != stu[digit].Mgrade && stu[digit].Mgrade != stu[digit].Egrade){
                result = max(stu[digit].Cgrade,max(stu[digit].Egrade,stu[digit].Mgrade));
                if(result == stu[digit].Cgrade){
                    for(int k=0;k<n;++k){
                        if(stu[k].Cgrade > result){
                            count++;
                        }
                    }
                    printf("%d C\n",count);
                    count = 1;
                    flag = false;
                    continue;
                }   
                if(result == stu[digit].Egrade){
                    for(int k=0;k<n;++k){
                        if(stu[k].Egrade > result){
                            count++;
                        }
                    }
                    printf("%d E\n",count);
                    count = 1;
                    flag = false;
                    continue;
                }  
                if(result == stu[digit].Mgrade){
                    for(int k=0;k<n;++k){
                        if(stu[k].Mgrade > result){
                            count++;
                        }
                    }
                    printf("%d M\n",count);
                    count = 1;
                    flag = false;
                    continue;
                }  
            }else{
                result = stu[digit].Agrade;
                for(int k=0;k<n;++k){
                    if(stu[k].Agrade > result){
                        count++;
                    }
                }
                printf("%d A\n",count);
                count = 1;
                flag = false;
                continue;
            }
        }
    }
    system("pause");
    return 0;
}