Submission #780240

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pii;
#define pb push_back
#define mp make_pair
#define fi first
#define se second

vi v[200005];
vector<pii>w;

int main()
{
	int n,m,s,a,b;
	scanf("%d%d%d",&n,&m,&s);
	for(int i=0;i<m;i++)
	{
		scanf("%d%d",&a,&b);
		w.pb(mp(max(a,b),min(a,b)));
	}
	sort(w.rbegin(),w.rend());
	for(int i=0;i<m;i++)
	{
		if(w[i].fi==s||v[w[i].fi].size())v[w[i].se].pb(w[i].fi);
	}
	for(int i=1;i<s;i++)
	{
		if(v[i].size())printf("%d\n",i);
	}
	printf("%d\n",s);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:17:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&n,&m,&s);
                          ^
./Main.cpp:20:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a,&b);
                      ^

Judge Result