C++中sort函数用法

版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/m0_37036984/article/details/79655580

C++中sort函数用法

排序示例:
输入两个数n,t,其中n是待排的结构体个数,t=0代表用降序排序,t = 1表示用升序排序
例如这样:
例示:
jack 70
peter 96
Tom 70
smith 67
从高到低 成绩
peter 96
jack 70
Tom 70
smith 67
从低到高
smith 67
Tom 70
jack 70
peter 96
实现代码:

#include <iostream>
#include <algorithm>
using namespace std;
struct Student{
    string name;
    int score;
};
bool myFunction1(const Student &x,const Student &y){//升序排列 
    return x.score<y.score;
}
bool myFunction2(const Student &x,const Student &y){//降序排列 
    return x.score>y.score;
}
int main()
{
    int num,t;
    while(cin>>num>>t){
        Student stu[num];
        for(int i = 0;i<num; i++){
            cin>>stu[i].name>>stu[i].score;         
        }
        if(t == 0){
            sort(stu,stu+num,myFunction2); 
        }else if(t == 1){
            sort(stu,stu+num,myFunction1); 
        }else{
            return 0;
        }
        for(int i = 0;i<num; i++){
            cout<<stu[i].name<<" "<<stu[i].score<<endl;         
        }
    }
    return 0;
}

猜你喜欢

转载自blog.csdn.net/m0_37036984/article/details/79655580