三个数从小到大排序

#include <iostream>using namespace std;int main(){int a, b, c;cin>>a>>b>>c;if(a>b){a=a^b;b=a^b;a=a^b;}if(b>c){b=b^c;c=b^c;b=b^c;}if(a>b){a=a^b;b=a^b;a=a^b;}cout<<a<<' '<<b<<' '<<c<<endl;return 0;}