Codeforces Round #195 (Div. 2) A. Vasily the Bear and Triangle

水题，注意数据范围即可

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

typedef pair<int,int> Point;

int main(){
    int x,y;
    cin >> x >>y;
    Point a,b;
    if((x>0 && y > 0) || (x < 0 && y < 0)) a = make_pair(x+y,0),b=make_pair(0,x+y);
    else a = make_pair(x-y,0),b=make_pair(0,y-x);
    if(a.first > b.first) swap(a,b);
    cout<<a.first<<" "<<a.second<<" "<<b.first<<" "<<b.second<<endl;
}