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sum和difference 不同奇同偶时是impossible的In Reply To:Re:错了,又错了,还是错了...为什么总是wrong answer? Posted by:Maxempire at 2005-12-04 17:37:39 > 这是源程序,请哪位牛人解决一下?
> #include<stdio.h>
> #include<math.h>
> void main(){
> int m,i,a,b,sum,difference;
> scanf("%d",&m);
> for(i=0;i<m;i++){
> scanf("%d %d",&sum,&difference);
> if(sum<0||difference<0){
> printf("impossible\n");
> continue;
> }
> a=(sum+difference)/2;
> b=(sum-difference)/2;
> if(a<0||b<0){
> printf("impossible\n");
> continue;
> }
> printf("%d %d\n",a,b);
> }
> }
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