Submission #7462690

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Source Code Expand

#include "cstdio"
using namespace std;
int f[100007];
int i,j,k,n,m,s,ans;
int p1,p2,p3;
int find(int k)
{
    if(f[k]==k)
    {
    	return k;
	}else
	{
		return f[k]=find(f[k]);
	}
}
int main()
{
    scanf("%d%d",&n,&m);
    for(i=1;i<=n;i++)
    {
    	f[i]=i;
	}
    for(i=1;i<=m;i++)
	{
		scanf("%d%d%d",&p1,&p2,&p3);
        if(p1==0)
        {
        	f[find(p2)]=find(p3);
		}else if(find(p2)==find(p3))
		{
			printf("Yes\n");
		}else
		{
			printf("No\n");
		}
    }
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:18:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
./Main.cpp:25:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d",&p1,&p2,&p3);
                              ^

Judge Result