hdu 5655 CA Loves Stick

CA Loves Stick

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)
Total Submission(s): 612    Accepted Submission(s): 214

Problem Description

CA loves to play with sticks.
One day he receives four pieces of sticks, he wants to know these sticks can spell a quadrilateral.
(What is quadrilateral? Click here: https://en.wikipedia.org/wiki/Quadrilateral)

 

Input

First line contains T denoting the number of testcases.
T testcases follow. Each testcase contains four integers a,b,c,d in a line, denoting the length of sticks.
1≤T≤1000, 0≤a,b,c,d≤263−1

 

Output

For each testcase, if these sticks can spell a quadrilateral, output "Yes"; otherwise, output "No" (without the quotation marks).

 

Sample Input

2

1 1 1 1

1 1 9 2

 

Sample Output

Yes

No

 

Source

BestCoder Round #78 (div.2)

 

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打BC的时候遇到的第一题，本来很简单的一道题，数据范围有点坑，错了三次，坑死宝宝了。

四边形定则：三边之后一定要大于第四边。

 

题意：给你四条边的长度，判断是否是个四边形，是则Yes，不是则No。注意数据的范围！！！

 

附上代码：

 

#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
int main()
{
    __int64 a[5],m;
    int T,i,j;
    scanf("%d",&T);
    while(T--)
    {
        for(i=0; i<4; i++)
            scanf("%I64d",&a[i]);
        sort(a,a+4);
        if(a[0]==0)
        {
            printf("No
");
            continue;
        }
        m=a[3]-a[1]-a[2];
        if(m>=a[0])
            printf("No
");
        else
            printf("Yes
");
    }
    return 0;
}