Submission #336232

#	Time	Username	Problem	Language	Result	Execution time	Memory
336232		sumit_kk10	꿈 (IOI13_dreaming)	C++14	Compilation error	0 ms	0 KiB

dreaming

#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL)
#define ll long long int
#define ld long double
using namespace std;
const int N = 1e6 + 5;
const int MOD = 1e9 + 7;
vector<pair<long long int, long long int> > graph[N];
bool vis[N];
long long int mx = 0;
vector<int> connected;

void dfs(int source, long long int largest){
    vis[source] = 1;
    mx = max(mx, largest);
    connected.push_back(source);
    for(auto k : graph[source])
        if(!vis[k.first])
            dfs(k.first, largest + k.second);
}

void dfs1(int source, long long int largest){
    vis[source] = 1;
    mx = max(mx, largest);
    for(auto k : graph[source])
        if(!vis[k.first])
            dfs1(k.first, largest + k.second);
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]){
    for(int i = 0; i < M; ++i){
        long long int u = A[i], v = B[i], c = T[i];
        graph[u].push_back({v, c});
        graph[v].push_back({u, c});
        // cout << u << ' ' << v << ' ' << c << endl;
    }
    vector<long long int> paths;
    for(int i = 0; i < N; ++i){
        if(!vis[i]){
            dfs(i, 0);
            long long int mn = mx;
            mx = 0;
            for(int j = 1; j < connected.size(); ++j){
                for(auto k : connected)
                    vis[k] = 0;
                dfs1(connected[j], 0);
                mn = min(mx, mn);
                mx = 0;
            }
          	// cout << mn << '\n';
            for(auto k : connected)
                vis[k] = 1;
            paths.push_back(mn);
            connected.clear();
        }
    }
  	sort(paths.rbegin(), paths.rend());
    return (int) (L + paths[0] + paths[1]);
}

/* int main(){
    fast;
    int n, m, l;
    cin >> n >> m >> l;
    int a[m], b[m], t[m];
    for(int i = 0; i < m; ++i)
        cin >> a[i];
    for(int i = 0; i < m; ++i)
        cin >> b[i];
    for(int i = 0; i < m; ++i)
        cin >> t[i];
    cout << travelTime(n, m, l, a, b, t) << '\n';
    return 0;
}
*/

Compilation message (stderr)

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:43:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |             for(int j = 1; j < connected.size(); ++j){
      |                            ~~^~~~~~~~~~~~~~~~~~
/tmp/ccauFDZi.o: In function `main':
grader.c:(.text.startup+0xc9): undefined reference to `travelTime'
collect2: error: ld returned 1 exit status