沃老师学生的成绩(sort的cmp函数中的参数传入)

链接: https://www.nowcoder.com/acm/contest/83/B
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cstring>
#include<string>
#include<cmath>
#define ll long long
using namespace std;
 
void dis(char a[], int n){
    printf("总数为%d个\n",n);
    for(int i = 0; i < n; i++)   cout<<a[i];
    cout<<endl<<"------------------"<<endl;      
}
 
const int mx = 2e5+10;
struct no{
    //char na[20];
    string sc,s1;
   	char na[30];
}stu[mx];
 
bool cmp(no &a, no&b){       // 这两个引用符号没有加就会超时
 
    if(a.s1 > b.s1)
        return true;
    else if(a.s1 < b.s1)
        return false;
         
    if( strcmp(a.na, b.na) < 0)
        return true;
    return false;
}
//char na[20];
int n;
int main(){
    int n,te;
    scanf("%d",&n);
    for(int i = 0; i <n; i++){
         
        cin>>stu[i].na>>stu[i].sc;
        te = stu[i].sc.length();
        //te -= 1;
        while(1){
            if(stu[i].sc[--te] != '0')   // 0 没加引号
                break;
            //cout<<"ci"<<endl;
        }
        te++;
        stu[i].s1= stu[i].sc.substr(0,te);
    }
    sort(stu,stu+n,cmp);
     
    for(int i = 0; i <n; i++){
        cout<<stu[i].na<<" "<<stu[i].sc<<endl;
        //dis(stu[i].sc,stu[i].ls);
    }
     
    return 0;
}


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转载自blog.csdn.net/qq_37325947/article/details/79937681
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