2016CCPC东北地区大学生程序设计竞赛 1003 HDU5924

链接http://acm.hdu.edu.cn/showproblem.php?pid=5924

题意：根据公式求C，D

解法：打表找规律

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#include <bits/stdc++.h> using namespace std; #define ll long long int main() {     int t,cnt=1;     scanf("%d",&t);     while(t--)     {         ll a,b;         scanf("%I64d%I64d",&a,&b);         printf("Case #%d:\n",cnt++);         if(a==b)         {             puts("1");             printf("%I64d %I64d\n",a,b);         }         else         {             puts("2");             printf("%I64d %I64d\n",a,b);             printf("%I64d %I64d\n",b,a);         }     }       return 0; }