B. Three Angles
Given three angles, determine if it is possible to have a triangle of positive area with these
angles.
Input
The first line of input contains one integer T, the number of test cases (1 ≤ T ≤ 128).
Each of the following T lines contains 3 space-separated integers (0 ≤ θ1, θ2, θ3 ≤ 180). These
integers represent the three angles.
Output
For each test case, print “YES” if it is possible to have a triangle of positive area with angles (θ1,
θ2, θ3) and print “NO” otherwise.
Sample Input Sample Output
3
50 60 70
50 65 80
45 90 45
YES
NO
YES
题意：
给3个角度，判断是否构成三角形。
思路：
判断三个数相加是否等于180，注意不能为0和负数。

#include<stdio.h>
int main()
{
    int t,a,b,c;
    scanf("%d",&t);
    while(t--)
    {
        scanf("%d%d%d",&a,&b,&c);
        if(a+b+c==180&&a>0&&b>0&&c>0)
        {
            printf("YES\n");
        }
        else
        {
            printf("NO\n");
        }
    }
}