Submission #5256502

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Source Code Expand

#include<stdio.h>
#include<string.h>
#include<math.h>
#include<stdbool.h>


int par[100010];

void init(int n) {
	for (int i = 0; i < n; i++)
		par[i] = i;
}

int root(int x) {
	if (par[x] == x)return x;
	else return par[x] = root(par[x]);
}
bool same(int x, int y) {
	return root(x) == root(y);
}
void unite(int x, int y) {
	x = root(x);
	y = root(y);
	if (x == y)return;
	par[x] = y;
}
int main() {
	int n, q,p[200010],a[100010],b[100010];
	scanf("%d%d", &n, &q);
	 init(n);
	for(int i=0;i<q;i++){
		scanf("%d%d%d", &p[i], &a[i], &b[i]);
		if (p[i] == 0) {
			unite(a[i], b[i]);
		}
		else if (same(a[i], b[i]))puts("Yes");
	    else puts("No");
		
	
	}
	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:29:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &q);
  ^
./Main.c:32:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &p[i], &a[i], &b[i]);
   ^

Judge Result