> 代码片段：
> for (int i = 0; i < n; ++i)
> {
> 	double x, y;
> 	cin>>x>>y;
> 	if (y > d){
> 		ans = -1;
> 		break;//导致Runtime Error
> 	}
> 	offset = sqrt(d*d - y*y);
> 	range[i].l = x - offset;
> 	range[i].r = x + offset;		
> }
> 输入时若发现某小岛y值大于雷达范围就break，输出-1，但这样却会导致Runtime Error，不知为何，哪位大佬能解答一下？
> 整体代码：
> #include <iostream>
> #include <stdio.h>
> #include <algorithm>
> #include <cmath>
> using namespace std;
> 
> struct ran{
> 	double l;
> 	double r;
> }range[1000];
> 
> int cmp(const void *a, const void *b){
> 	return ((*(ran *)a).l > (*(ran *)b).l)?1:-1;
> }
> 
> int main()
> {
> 	double offset, a, d;
> 	int t=1;
> 	int ans, n;
> 	while (cin>>n>>d && n && d){
> 		ans = 1;
> 		for (int i = 0; i < n; ++i)
> 		{
> 			double x, y;
> 			cin>>x>>y;
> 			if (y > d){
> 				ans = -1;
> 				//break;//导致Runtime Error
> 			}
> 			offset = sqrt(d*d - y*y);
> 			range[i].l = x - offset;
> 			range[i].r = x + offset;		
> 		}
> 		if (ans != -1){
> 		    qsort(range, n, sizeof(range[0]), cmp);
> 			a = range[0].r;
> 			for (int i = 1; i < n; ++i)
> 			{
> 				if (range[i].l > a){
> 					a = range[i].r;
> 					ans++;
> 				}else if (range[i].r < a){
> 					a = range[i].r;
> 				}
> 			}
> 		}
> 		printf("Case %d: %d\n", t++, ans);
> 	}
> 	return 0;
> }

• Re:break导致Runtime Error (17) Kilo_5723 2018-10-18 20:30:08