Submission #891528

#	Time	Username	Problem	Language	Result	Execution time	Memory
891528		Mr_Ph	Kutije (COCI21_kutije)	C++17	70 / 70	967 ms	14592 KiB

Main

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
typedef long long ll;
using namespace std;
using namespace __gnu_pbds;
template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;
const int mod=(int)1e9+7;
///the defines :)
#define endl '\n'
#define vi vector<int>
#define vll vector<ll>
#define ent(arr) for(int i=0;i<arr.size();i++)cin>>arr[i];
#define all(arr) arr.begin(),arr.end()
#define allr(arr) arr.rbegin(),arr.rend()
#define sz size()
//#define int long long
bool can[1002][1002];
vector<vi>adj;
void dfs(int node,int toy)
{
    //cout<<node<<" "<<toy<<endl;
    can[node][toy]=true;
    for(auto i:adj[node])
    {
        if(!can[i][toy]){
            //cout<<"WHAT"<<endl;
        dfs(i,toy);
        }
    }
}
void preprocess() {}
void solve()
{
    int n,m,q;
    cin>>n>>m>>q;
    adj.resize(n+1);
    for(int i=0;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++)dfs(i,i);
    while(q--)
    {
        int a,b;
        cin>>a>>b;
        if(can[b][a])cout<<"DA"<<endl;
        else cout<<"NE"<<endl;
    }
}
signed main()
{
    // freopen("div7.in","r",stdin);
    //freopen("div7.out","w",stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    preprocess();
    //bla();
    int t=1;
  //  cin>>t;
    while(t--)
        solve();
}

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