Submission #568415

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
568415	2022-05-25 11:39:50	shahriarkhan	Sirni (COCI17_sirni)	C++14	0 / 140	595 ms	409832 KiB

sirni

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#include<bits/stdc++.h>
using namespace std ;
const int MX = 1e7 + 5 ;
int nex[MX] , vis[MX] ;
vector<pair<int,int> > val[MX] ;
struct dsu
{
    vector<int> sz , par ;
    void init(int n)
    {
        sz = vector<int> (n+2,0) ;
        par = vector<int> (n+2,0) ;
        for(int i = 1 ; i <= n ; ++i)
        {
            par[i] = i , sz[i] = 1 ;
        }
    }
    int find_root(int a)
    {
        if(par[a]==a) return a ;
        return par[a] = find_root(par[a]) ;
    }
    int union_edge(int u , int v)
    {
        int root_u = find_root(u) , root_v = find_root(v) ;
        if(root_u==root_v) return 0 ;
 
 
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Compilation message (stderr)

sirni.cpp: In function 'int main()':
sirni.cpp:41:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |     scanf("%d",&n) ;
      |     ~~~~~^~~~~~~~~
sirni.cpp:46:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |         scanf("%d",&p[i]) ;
      |         ~~~~~^~~~~~~~~~~~

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