求助。。样例是对的,提交后却全部WA
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求助。。样例是对的,提交后却全部WA
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MOXCOOT楼主2021/2/17 12:44
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstring>
#include<queue>
#include<cmath>
#define NUM 1000
using namespace std;
int n;
bool a[NUM][NUM];
int fan(int x) {                           //反转函数
	if (x == 1)return 0;
	else return 1;
}
void one(int x) {                          //将对角线上的数反转
	a[x][x] = fan(a[x][x]);
}
int G() {                                  //求取G值
	int sum = 0;
	for (int i = 0; i < n; i++) {
		sum += a[i][i] * a[i][i];
	};
	return sum % 2;
}
int main() {
	int c[NUM];
	int q, cnt = 0;
	cin >> n >> q;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			cin >> a[i][j];                 //输入
		}
	}
	for (int i = 0; i < q; i++) {
		int t;
		cin >> t;
		if (t != 3) {
			int x;
			cin >> x;
			one(x - 1);
		}
		else{
			c[cnt] = G();
			cnt++;
		}
	}
	for (int i = 0; i < cnt; i++) {          //打印G值
		cout << c[i];
	}
}
2021/2/17 12:44
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