답안 #1111110

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1111110	2024-11-11T13:58:04 Z	huantran	Cijanobakterije (COCI21_cijanobakterije)	C++17	컴파일 오류	0 ms	0 KB

Main

#include <bits/stdc++.h>

using namespace std;
using ll = long long int;
const int maxn = 2e5 + 5;
const int oo = 1e9 + 7;
const ll inf = 1e18;

int n, m;
int dis[maxn], ans, vs[maxn];
int vertex;
vector<int> adj[maxn];

void bfs(int u) {
    for (int i = 1; i <= n; i++)
        dis[i] = oo;
    
    dis[u] = 0;
    queue<int> q;
    q.push(u);

    while (!q.empty()) {
        int v = q.front();
        q.pop();
        vs[v] = 1;

        for (auto j : adj[v]) {
            if (dis[j] > dis[v] + 1) {
                dis[j] = dis[v] + 1;
                ans = max(ans, dis[j]);     
                vertex = j;
                q.push(j);
            }
        }
    }
}

int solve(int u) {
    ans = 0;
    bfs(u);
    bfs(vertex);
    return ans;
}

int main() {}

    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    cin >> n >> m;
    for (int i = 1; i <= m; i++) {
        int u, v;
        cin >> u >> v;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }   

    int res = 0;
    int cnt = 0;
    for (int i = 1; i <= n; i++) {
        if (!vs[i])
            res += solve(i), cnt++;
    }

    cout << res + 1;
}

Compilation message

Main.cpp:47:30: error: expected constructor, destructor, or type conversion before '(' token
   47 |     ios_base::sync_with_stdio(0);
      |                              ^
Main.cpp:48:5: error: 'cin' does not name a type; did you mean 'sin'?
   48 |     cin.tie(0), cout.tie(0);
      |     ^~~
      |     sin
Main.cpp:50:5: error: 'cin' does not name a type; did you mean 'sin'?
   50 |     cin >> n >> m;
      |     ^~~
      |     sin
Main.cpp:51:5: error: expected unqualified-id before 'for'
   51 |     for (int i = 1; i <= m; i++) {
      |     ^~~
Main.cpp:51:21: error: 'i' does not name a type
   51 |     for (int i = 1; i <= m; i++) {
      |                     ^
Main.cpp:51:29: error: 'i' does not name a type
   51 |     for (int i = 1; i <= m; i++) {
      |                             ^
Main.cpp:60:5: error: expected unqualified-id before 'for'
   60 |     for (int i = 1; i <= n; i++) {
      |     ^~~
Main.cpp:60:21: error: 'i' does not name a type
   60 |     for (int i = 1; i <= n; i++) {
      |                     ^
Main.cpp:60:29: error: 'i' does not name a type
   60 |     for (int i = 1; i <= n; i++) {
      |                             ^
Main.cpp:65:5: error: 'cout' does not name a type
   65 |     cout << res + 1;
      |     ^~~~
Main.cpp:66:1: error: expected declaration before '}' token
   66 | }
      | ^