zoj2388 Beat the Spread!
2015-07-25 21:51
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Beat the Spread!
Submit Status
Description
Superbowl Sunday is nearly here. In order to pass the time waiting for the half-time commercials and wardrobe malfunctions, the local hackers have organized a betting pool on the game. Members place their bets on the sum of the two final scores, or on the
absolute difference between the two scores.
Given the winning numbers for each type of bet, can you deduce the final scores?
Input
The first line of input contains n, the number of test cases. n lines follow, each representing a test case. Each test case gives s and d, non-negative integers representing the sum and (absolute) difference between the two final scores.
Output
For each test case, output a line giving the two final scores, largest first. If there are no such scores, output a line containing "impossible". Recall that football scores are always non-negative integers.
Sample Input
2
40 20
20 40
Sample Output
30 10
impossible
Source
University of Waterloo Local Contest 2005.02.05
分析:
水题。注意判断(s+d)%2==0就可以了。
ac代码:
#include <iostream>
#include<cstdio>
using namespace std;
int main()
{
int n,s,d;
int x,y;
scanf("%d",&n);
while(n--)
{
scanf("%d%d",&s,&d);
if(s>=d&&(s+d)%2==0)//注意判断(s+d)%2==0
printf("%d %d\n",(s+d)/2,(s-d)/2);
else
printf("impossible\n");
}
return 0;
}
Time Limit: 2000MS | Memory Limit: 65536KB | 64bit IO Format: %lld & %llu |
Description
Superbowl Sunday is nearly here. In order to pass the time waiting for the half-time commercials and wardrobe malfunctions, the local hackers have organized a betting pool on the game. Members place their bets on the sum of the two final scores, or on the
absolute difference between the two scores.
Given the winning numbers for each type of bet, can you deduce the final scores?
Input
The first line of input contains n, the number of test cases. n lines follow, each representing a test case. Each test case gives s and d, non-negative integers representing the sum and (absolute) difference between the two final scores.
Output
For each test case, output a line giving the two final scores, largest first. If there are no such scores, output a line containing "impossible". Recall that football scores are always non-negative integers.
Sample Input
2
40 20
20 40
Sample Output
30 10
impossible
Source
University of Waterloo Local Contest 2005.02.05
分析:
水题。注意判断(s+d)%2==0就可以了。
ac代码:
#include <iostream>
#include<cstdio>
using namespace std;
int main()
{
int n,s,d;
int x,y;
scanf("%d",&n);
while(n--)
{
scanf("%d%d",&s,&d);
if(s>=d&&(s+d)%2==0)//注意判断(s+d)%2==0
printf("%d %d\n",(s+d)/2,(s-d)/2);
else
printf("impossible\n");
}
return 0;
}
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