sort

C语言qsort

#include<iostream>
#include<cstdio>
#include<cstdlib>
using namespace std;
void print(int *array,int n){
	for(int i=0;i<n;i++){
		cout<<array[i]<<" ";
	}
	cout<<endl;
}
int cmp(const void* a,const void* b){
	return *((int*)a)-*((int*)b);
}
int main(){
	int array[]={11,222,3,44,55,666,-100,1};

	qsort(array,8,sizeof(int),cmp);
	print(array,8);
	return 0;
}

c++

#include<iostream>
#include<algorithm>
using namespace std;
bool cmp(int a,int b){
	return a>b;
}
int main(){
	int array[]={11,222,3,44,55,666,-100,1};

//	sort(array,array+8,cmp);//
//	sort(array,array+8);//默认小--->大less 
//	sort(array,array+8,greater<int>());//大--->小 greater 
	sort(array,array+8,[](int a,int b){return a>b;});
	
	
//	sort(v.begin(),v.end(),greater<int>());	
	
	for(auto x:array) cout<<x<<" ";
	return 0;
}