C++排序彙總

1.順序排序

#include <iostream>
#include <algorithm> 
using namespace std;

int main(){
    int a[] = {5,3,7,3,9,4};
    sort(a,a+6);
    for(int i = 0;i < 6;i ++){
        cout<<a[i]<<" ";
    }
    return 0;
}

2.逆序排序

#include <iostream>
#include <algorithm> 
using namespace std;
 
bool cmp(int a,int b){
    return a > b;
}
 
int main(){
    int a[] = {5,3,7,3,9,4};
    sort(a,a+6,cmp);
    for(int i = 0;i < 6;i ++){
        cout<<a[i]<<" ";
    }
    return 0;
}

3.字符串排序

sort(s2.begin(),s2.end());

4.字符串逆序排序

sort(s2.rbegin(),s2.rend());