#include <iostream>
#include <algorithm>
#include <cmath>

using namespace std;

//用结构体存储学生信息
struct stuInfo {
public:
    string stuName;
//    ID 用来应对同分情况
    int cnScore, mathScore, engScore, totScore, ID;
} stu[1005];

//应对同分情况
bool cmp(const stuInfo &a, const stuInfo &b) {
    return a.totScore == b.totScore ? a.ID < b.ID : a.totScore < b.totScore;
}

bool isCompStudent(const stuInfo &stuA, const stuInfo &stuB) {
    int totScrGap, cnScrGap, matScrGap, engScrGap;
    totScrGap = abs(stuB.totScore - stuA.totScore);
    cnScrGap = abs(stuB.cnScore - stuA.cnScore);
    matScrGap = abs(stuB.mathScore - stuA.mathScore);
    engScrGap = abs(stuB.engScore - stuA.engScore);
    return totScrGap <= 5 && cnScrGap <= 10 && matScrGap <= 10 && engScrGap <= 10;
}

int main(int argc, char const *argv[]) {
    int stuNumber;
    cin >> stuNumber;
    for (int i = 0; i < stuNumber; ++i) {
        cin >> stu[i].stuName >> stu[i].cnScore >> stu[i].mathScore >> stu[i].engScore;
        stu[i].totScore = stu[i].cnScore + stu[i].mathScore + stu[i].engScore;
        stu[i].ID = i;
    }
    sort(stu, stu + stuNumber, cmp);
    for (int i = 0; i < stuNumber; ++i) {
        if (isCompStudent(stu[i], stu[i + 1])) {
            cout << stu[i].stuName << ' ' << stu[i + 1].stuName << endl;
        }
    }
    return 0;
}

这个怎么错了啊 纯萌新。。