Submission #7506245

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int father[100005];
inline int find(int x)//查找根
{
    if(father[x]!=x)
      father[x]=find(father[x]);//路径压缩
    return father[x];
}
inline void merge(int x,int y)//合并
{
    x=find(x);
    y=find(y);
    father[y]=x;
} 
inline bool judge(int x,int y)//判断
{
    if(find(x)==find(y))
      return true;
    else
      return false;
}
inline void init(int n)//初始化
{
    for(int i=1;i<=n;i++)
      father[i]=i;
}
int main()
{
    int n,m,z,a,b;
    scanf("%d%d",&n,&m);
    init(n);
    for(int i=1;i<=m;i++)
      {
        scanf("%d%d%d",&z,&a,&b);
        if(!z)
          merge(a,b);
        else
          if(judge(a,b))
            printf("Yes\n");
          else
            printf("No\n");
      }
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:31:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
./Main.cpp:35:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d",&z,&a,&b);
                                 ^

Judge Result