#include<stdio.h>
int main() {
	int x = 0;
	scanf("%d", &x);
	while (x--) {
		int a, b, c;
		scanf("%d%d%d", &a, &b, &c);
		//a定为最大的，b定为中等的，c定位最小的
		if (a < b) {
			int tmp = a;
			a = b;
			b = tmp;
		}
		if (a < c) {
			int tmp = a;
			a = c;
			c = tmp;
		}
		if (b < c) {
			int tmp = b;
			b = c;
			c = tmp;
		}
		int cnt = 0;
		if ((a + b > c && a - b < c) && (a + c > b && a - c < b) && (b + c > a && b - c < a))
		{
			if (a * a > b * b + c * c)
			{
				cnt = 3;
			}
			else if (a * a == b * b + c * c)
			{
				cnt = 2;
			}
			else if (a * a < b * b + c * c)
			{
				cnt = 1;
			}
		}
		else {
			cnt = -1;
		}
		printf("%d\n", cnt);
	}
	return 0;
}

第二种，复杂的

#include<stdio.h>
int main() {
	int n;
	scanf("%d", &n);
	int s[3] = {0};
	while (n--) {
		for (int i = 0; i < 3; i++) {
			scanf("%d", &s[i]);
...