提出 #40536021

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ソースコード 拡げる

#include<bits/stdc++.h>
using namespace std;

typedef long long int ll;
#define IOS ios_base::sync_with_stdio(0);  cin.tie(0); cout.tie(0);


#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

typedef tree<int,null_type, less<int>,rb_tree_tag, tree_order_statistics_node_update>order_set;
typedef pair<int,int>pr;
#define all(i)     i.begin() , i.end()
#define ft     first
#define sn     second
#define pb push_back


#define en "\n"
#define dbg cout<<"rony\n";

#define MAXN 200010
#define inf 1e6
const ll mod = 998244353;

vector<int>g[MAXN];
ll vis[MAXN];
int n,m;

int dfs(int nd)
{
    vis[nd] = 1;
    int sz = 1;
    for(auto i:g[nd])
    {
        if(vis[i] == 1) continue;
        if(sz >= inf) return sz;
        sz += dfs(i);
        if(sz >= inf) return sz;
    }
    vis[nd] = 2;
    return sz;
}

void solve()
{
    cin >> n >> m;
    for(int i = 1;i <= m;i++){
        int x,y;
        cin >> x >> y;
        g[x].pb(y);
        g[y].pb(x);
    }

      int k = dfs(1);
      cout<<min(k,(int)inf)<<en;

}
int main()
{
    IOS;
   int t;
   t = 1;
  
   // cin >> t;

   int c = 0;
    while ( t-- )
    {
        // cout<<"Case "<<++c<<": ";
        solve();
    }
    return 0;
}   

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:68:8: warning: unused variable ‘c’ [-Wunused-variable]
   68 |    int c = 0;
      |        ^

ジャッジ結果