oj.uz

Submission #851823

# Submission time Handle Problem Language Result Execution time Memory
851823 2023-09-20T16:34:42 Z vjudge1 Kutije (COCI21_kutije) C++17
70 / 70
 131 ms 2132 KB 
#ifndef Local
    #pragma GCC optimize("O3,unroll-loops")
    #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#endif
#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define lim 1000000
#define till 1000001
// # of primes till 1e6 = 7e4
using namespace std;
using pii = array<int,2>;
const int mod=1000000007ll;

bitset<1000> v[1000];
bool vis[1000];
int n,m,q;

void dfs(int i){
    bool might=0;
    for(int j=0;j<n;j++){
        if(v[i][j]&&!vis[j]){
            vis[j]=1;
            if(((v[i])^(v[j]))!=0){
                might=1;
            }
            v[i]|=v[j];
        }
    }
    if(might)dfs(i);
}

void solve(){
    cin>>n>>m>>q;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            v[i][j]=0;
        }
    }
    for(int i=0;i<m;i++){
        for(int j=0;j<n;j++){
            int tem;
            cin>>tem;
            tem--;
            v[tem][j]=1;
        }
    }
    for(int i=0;i<n;i++){
        memset(vis,0,n);
        dfs(i);
    }
    for(int i=0;i<n;i++){
        v[i][i]=1;
    }
    while(q--){
        int x,y;
        cin>>x>>y;
        x--,y--;
        if(v[x][y]==1){
            cout<<"DA\n";
        }else{
            cout<<"NE\n";
        }
    }
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
#ifdef Local  
    freopen("in","r",stdin);
    freopen("out","w",stdout);
#endif
    int t=1;
    //cin>>t;
    while (t--)
    {
        solve();
    }
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 2016 KB Output is correct
2 Correct 74 ms 1660 KB Output is correct
3 Correct 61 ms 1604 KB Output is correct
4 Correct 85 ms 1948 KB Output is correct
5 Correct 67 ms 1872 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 2016 KB Output is correct
2 Correct 74 ms 1660 KB Output is correct
3 Correct 61 ms 1604 KB Output is correct
4 Correct 85 ms 1948 KB Output is correct
5 Correct 67 ms 1872 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 113 ms 1872 KB Output is correct
27 Correct 118 ms 1872 KB Output is correct
28 Correct 105 ms 1656 KB Output is correct
29 Correct 126 ms 1872 KB Output is correct
30 Correct 102 ms 1580 KB Output is correct
31 Correct 95 ms 1616 KB Output is correct
32 Correct 131 ms 2132 KB Output is correct
33 Correct 115 ms 1872 KB Output is correct
34 Correct 115 ms 1876 KB Output is correct
35 Correct 127 ms 1836 KB Output is correct