제출 #1130694

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1130694		Ludissey	다리 (APIO19_bridges)	C++20	컴파일 에러	0 ms	0 KiB

bridges

#include <bits/stdc++.h>
#define int long long
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
 
using namespace std;

vector<vector<pair<int,int>>> neigh;
vector<int> w;
vector<int> visited;


int dfs(int x, int p, int mn){
    int s=1;
    if(visited[x]) return 0;
    visited[x]=true;
    for (auto u : neigh[x])
    {
        if(u.first==p) continue;
        if(w[u.second]>=mn) s+=dfs(u.first,x,mn);
    }
    return s;
}

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    int n,m,q; cin >> n >> m;
    neigh.resize(n);
    w.resize(n);
    visited.resize(n);
    for (int i = 0; i < m; i++)
    {
        int u,v; cin >> u >> v >> w[i];
        neigh[u-1].push_back({v-1,i});
        neigh[v-1].push_back({u-1,i});
    }
    cin >> q;
    for (int i = 0; i < q; i++)
    {
        int t; cin >> t;
        if(t==1){
            int b,r; cin >> b >> r;
            w[b-1]=r;
        }else{
            int s,mw; cin >> s >> mw;
            cout << dfs(s-1,-1, w) << "\n";
            for (int j = 0; j < n; j++)
            {
                visited[j]=false;
            }
            
        }
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bridges.cpp: In function 'int main()':
bridges.cpp:47:33: error: cannot convert 'std::vector<long long int>' to 'long long int'
   47 |             cout << dfs(s-1,-1, w) << "\n";
      |                                 ^
      |                                 |
      |                                 std::vector<long long int>
bridges.cpp:14:27: note:   initializing argument 3 of 'long long int dfs(long long int, long long int, long long int)'
   14 | int dfs(int x, int p, int mn){
      |                           ^