題目:
https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=20&page=show_problem&problem=1753
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| #include <iostream>
#include <algorithm>
#include <cmath>
using namespace std;
int main(){
int n;
cin >> n;
while(n--){
int s, d;
cin >> s >> d;
if(s < d || (s+d)%2 != 0 || (s-d)%2 != 0){
cout << "impossible\n";
continue;
}
int a = (s + d) / 2;
int b = (s - d) / 2;
if(a < 0 || b < 0){
cout << "impossible\n";
continue;
}
if(a < b) swap(a, b);
cout << a << ' ' << b << '\n';
}
return 0;
}
|
