Submission #528376

#	Time	Username	Problem	Language	Result	Execution time	Memory
528376		Slavita	Kutije (COCI21_kutije)	C++14	20 / 70	1088 ms	3332 KiB

Main

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define ve vector<int>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define pi pair<int,int>
#define all(v) v.begin(),v.end()
#define si(v) (int)v.size()
#define en '\n'
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define ordered_muiltiset tree<int, null_type,less_equal<>, rb_tree_tag,tree_order_statistics_node_update>
//#define int long long
using namespace std;
//using namespace __gnu_pbds;
typedef long long ll;
typedef unsigned long long ull;

const int N = 1e5 + 228;
const int big = 1e9;
//ordered_set os; // os.order_of_key(4), (*os.find_by_order(5))
int n, m, q, ans;
bool mrk[N];
vector<int> g[N];

bool dfs(int v, int target){
    if (v == target) return 1;
    if (mrk[v]) return 0;
    mrk[v] = 1;
    for (int i = 0; i < si(g[v]); i++){
        int u = g[v][i];
        if (dfs(u, target)) return 1;
    }
    return 0;
}

//#undef int
int main(){
    //#define int long long
    iostream::sync_with_stdio(false); cin.tie(0); ios_base::sync_with_stdio(false); cout.tie(0);
    //freopen("input.txt","r",stdin);
    //freopen("output.txt","w",stdout);
    cin >> n >> m >> q;
    for (int i = 1; i <= m; i++)
        for (int j = 1; j <= n; j++) {int x; cin >> x; g[j].pb(x);}
    for (int i = 1; i <= q; i++){
        for (int j = 1; j <= n; j++) mrk[j] = 0;
        int x, y; cin >> x >> y;
        if (dfs(x, y)) cout << "DA\n"; else cout << "NE\n";
    }
    return 0;
}
/*
*/

• Subtask 1: 0 / 15
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 35