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  • c++ sort排序

    字符串内部排序

    #include <iostream>
    #include<cstring>
    #include<math.h>
    #include<algorithm>
    #include<stdio.h>
    #include<string.h>
    using namespace std;
    bool cmp(char str1,char str2 ){
    return str1<str2;

    }
    int main(){

    string str;
    cin>>str;
    sort(str.begin(),str.end(),cmp);
    cout<<str;
    return 0;
    }

    结构体排序

    #include <iostream>
    #include<cstring>
    #include<math.h>
    #include<algorithm>
    #include<stdio.h>
    #include<string.h>
    using namespace std;
    struct node{
    int num;
    string str;
    }nd[10];
    int cmp(node n1,node n2 ){
    if(n1.num!=n2.num)
    return n1.num<n2.num;
    else if(n1.str.compare(n2.str)<0)
    return 1 ;
    else
    return 0;

    }
    int main(){

    for(int i =0;i<3;i++){
    cin>>nd[i].num>>nd[i].str;
    }
    sort(nd,nd+3,cmp);
    for(int j =0;j<3;j++){
    cout<<nd[j].num<<" "<<nd[j].str<<endl;
    }
    return 0;
    }

     数组排序

    #include <iostream>
    #include<cstring>
    #include<math.h>
    #include<algorithm>
    #include<stdio.h>
    #include<string.h>
    using namespace std;

    int cmp(int n1,int n2 ){
    return n1<n2;

    }
    int main(){
    int num[10];
    for(int i =0;i<5;i++){
    cin>>num[i];
    }
    sort(num,num+5,cmp);
    for(int j =0;j<5;j++){
    cout<<num[j]<<" ";
    }
    return 0;
    }

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  • 原文地址:https://www.cnblogs.com/cyj1258/p/9251663.html
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