题意：
判断三条线段能否组成三角形
解法：
坑！记得用float,用int直接WA。
1: #include<stdlib.h>
2: #include<stdio.h>
3: int main(){
4: int cases;
5: float a,b,c;
6: scanf("%d",&cases);
7: while(cases--){
8: scanf("%f %f %f",&a,&b,&c);
9: if(a+b>c&&a+c>b&&b+c>a)
10: printf("YES\n");
11: else
12: printf("NO\n");
13: }
14: }
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