FZU 2272 Frog 第八届福建省赛 （鸡兔同笼水题）

Problem Description

Therearex frogs and y chicken in a garden. Kim found there are n heads and m legs in the garden. Please tell Kim how many frogs and chicken are there. (A frog has 4 legs, and a chicken has 2 legs.)

 Input

First line contains an integer T (1 ≤ T ≤ 10), represents there are T test cases.

For each test case: Two number n and m.

1<=n, m <=100000. The data is legal.

 Output

For each test case, output two numbers A and B – the number of frog and the number of chicken.

 Sample Input

2

2 6

2 4

 Sample Output

1 1

0 2

 

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

 int main()
 {
     int T;
     int n,m,a,b;
     scanf("%d",&T);
     while(T--)
     {
         scanf("%d%d",&n,&m);
         a=(m-*n)/;
         b=n-a;
         printf("%d %d\n",a,b);
     }
     return ;
 }