Submission #1028820

#	Time	Username	Problem	Language	Result	Execution time	Memory
1028820		atom	Kutije (COCI21_kutije)	C++17	70 / 70	886 ms	14680 KiB

Main

#include "bits/stdc++.h"
// @JASPER'S BOILERPLATE
using namespace std;
using ll = long long;

#ifdef JASPER
#include "debug.h"
#else
#define debug(...) 166
#endif

const int N = 1005;

vector <int> adj[N];
bool vis[N][N];

void dfs(int r, int u) {
    vis[r][u] = true;
    for (int v : adj[u]) {
        if (!vis[r][v]) {
            dfs(r, v);
        }
    }
}

signed main() {
    cin.tie(0) -> sync_with_stdio(0);
    
    #ifdef JASPER
        freopen("in1", "r", stdin);
    #endif

    int n, m, q;
    cin >> n >> m >> q;

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

    for (int i = 1; i <= n; ++i) {
        sort(adj[i].begin(), adj[i].end());
        adj[i].resize(unique(adj[i].begin(), adj[i].end()) - adj[i].begin());
    }

    for (int i = 1; i <= n; ++i) {
        dfs(i, i);
    }

    for (int i = 1; i <= q; ++i) {
        int u, v;
        cin >> u >> v;
        debug(u, v);
        cout << (vis[u][v]? "DA" : "NE") << "\n";
    }
    
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:9:20: warning: statement has no effect [-Wunused-value]
    9 | #define debug(...) 166
      |                    ^~~
Main.cpp:55:9: note: in expansion of macro 'debug'
   55 |         debug(u, v);
      |         ^~~~~

• Subtask 1: 15 / 15
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 35 / 35