Submission #720690

#	Time	Username	Problem	Language	Result	Execution time	Memory
720690		Yell0	Kutije (COCI21_kutije)	C++17	70 / 70	804 ms	14796 KiB

Main

#include <bits/stdc++.h>
 
using namespace std;
const int MN=1002;
int n,m,q;
vector<int> adj[MN];
bool vis[MN];
bool dest[MN][MN];
 
void dfs(int u,int p) {
    vis[u]=1;
    dest[p][u]=1;
    for(int v:adj[u])
        if(!vis[v])
            dfs(v,p);
}
 
int main() {
    ios::sync_with_stdio(0);cin.tie(0);
    cin>>n>>m>>q;
    for(int i=1;i<=m;i++)
        for(int u=1,v;u<=n;u++) {
            cin>>v;
            adj[v].push_back(u);
        }
	memset(dest,0,sizeof(dest));
    for(int i=1;i<=n;i++) {
        memset(vis,0,sizeof(vis));
        dfs(i,i);
    }
    int a,b;
    while(q--) {
        cin>>a>>b;
        if(dest[a][b]) cout<<"DA\n";
        else cout<<"NE\n";
    }
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:21:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   21 |     for(int i=1;i<=m;i++)
      |     ^~~
Main.cpp:26:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   26 |  memset(dest,0,sizeof(dest));
      |  ^~~~~~

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