标签:des style blog http io ar color os sp
DFS.....
多余3个的数可以自己成等比数列
和其他数组合成等比数列的有1,2,3, 2,3,4 1,2,3,4 三种情况
3 1 2 2 1 1 0 0 0 3 0 0 0
Yes No YesHintIn the first case,the numbers can be divided into {1,2,3} and {2,3,4}. In the second case,the numbers can‘t be divided properly. In the third case,the numbers can be divided into {1,1,1}.
/* ***********************************************
Author :CKboss
Created Time :2014年12月13日 星期六 23时09分55秒
File Name :B_2.cpp
************************************************ */
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <string>
#include <cstdlib>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <cmath>
using namespace std;
bool flag;
bool ck(int a,int b,int c,int d)
{
/// check
if(a==0&&b==0&&c==0&&d==0) return true;
if( ((a!=0&&a>=3)||(a==0)) && ((b!=0&&b>=3)||(b==0)) && ((c!=0&&c>=3)||(c==0)) && ((d!=0&&d>=3)||(d==0)) ) return true;
if(a-1>=0&&b-1>=0&&c-1>=0&&d-1>=0)
if(ck(a-1,b-1,c-1,d-1)) return true;
if(a-1>=0&&b-1>=0&&c-1>=0)
if(ck(a-1,b-1,c-1,d)) return true;
if(b-1>=0&&c-1>=0&&d-1>=0)
if(ck(a,b-1,c-1,d-1)) return true;
return false;
}
int main()
{
//freopen("in.txt","r",stdin);
//freopen("out.txt","w",stdout);
int T_T;
scanf("%d",&T_T);
while(T_T--)
{
int a,b,c,d;
scanf("%d%d%d%d",&a,&b,&c,&d);
if(ck(a,b,c,d)==true) puts("Yes");
else puts("No");
}
return 0;
}
HDOJ 5143 NPY and arithmetic progression DFS
标签:des style blog http io ar color os sp
原文地址:http://blog.csdn.net/ck_boss/article/details/41917745