oj.uz

Submission #648618

# Submission time Handle Problem Language Result Execution time Memory
648618 2022-10-07T07:16:34 Z mychecksedad Joker (BOI20_joker) C++17
14 / 100
 1606 ms 40324 KB 
/* Author : Mychecksdead */
#include<bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef long double ld;
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define PI 3.1415926535
#define pb push_back
#define setp() cout << setprecision(15)
#define all(x) x.begin(), x.end()
#define oset tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
#define debug(x) cerr << #x << " is " << x << '\n';
const int N = 1e6+100, M = 2e5+10, F = 2147483646, K = 20;


int n, m, q, l, r;
bool ok;
vector<pair<int, int>> g[N];
bitset<M> vis, pos, okb;
void dfs(int v, int p, bool c){
    vis[v] = 1;
    pos[v] = c;
    for(auto k: g[v]){
        int u = k.first;
        if(l <= k.second && k.second <= r) continue;
        if(u != p){
            if(vis[u])
                ok |= pos[v] == pos[u];
            else
                dfs(u, v, !c);
        }
    }
} 
void dfs1(int v, int p, bool c, int min_edge){
    vis[v] = 1;
    pos[v] = c;
    for(auto k: g[v]){
        int u = k.first;
        if(l <= k.second && k.second <= r) continue;
        if(u != p){
            if(vis[u])
                okb[min_edge] = okb[min_edge] | (pos[v] == pos[u]);
            else
                dfs1(u, v, !c, k.second > r ? min(min_edge, k.second) : min_edge);
        }
    }
}
void solve(){
    cin >> n >> m >> q;
    for(int i = 0; i < m; ++i){
        int u, v; cin >> u >> v;
        g[u].pb({v, i + 1});
        g[v].pb({u, i + 1});
    }
    for(int i = 1; i <= n; ++i){
        sort(all(g[i]), [&](const pair<int, int> &a, pair<int, int> &b){
            return a.second > b.second;
        });
    }
    if(n <= 2000){
        for(int i = 0; i < q; ++i){
            cin >> l >> r;
            vis = 0;
            ok = 0;
            for(int v = 1; v <= n; ++v) if(!ok && !vis[v]) dfs(v, v, 0);
            if(ok) cout << "YES\n";
            else cout << "NO\n";
        }
    }
    else{
        vector<int> lim(205);
        for(int i = 1; i <= min(200, m); ++i){
            vis = 0;
            okb = 0;
            l = i, r = i;
            for(int v = 1; v <= n; ++v) if(!vis[v]) dfs1(v, v, 0, m + 1);
            for(int j = 1; j <= m + 1; ++j){
                if(okb[j]) lim[i] = j;
            }
        }
        for(int i = 1; i <= q; ++i){
            cin >> l >> r;
            cout << (r <= lim[l] ? "YES": "NO") << '\n';
        }
    }
}





int main(){
    cin.tie(0); ios::sync_with_stdio(0);
    int T = 1, aa;
    // cin >> T;aa=T;
    while(T--){
        // cout << "Case #" << aa-T << ": ";
        solve();
        cout << '\n';
    }
    return 0;
 
}

Compilation message

Joker.cpp: In function 'int main()':
Joker.cpp:97:16: warning: unused variable 'aa' [-Wunused-variable]
   97 |     int T = 1, aa;
      |                ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 12 ms 23784 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23756 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 14 ms 23872 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23868 KB Output is correct
11 Correct 15 ms 23764 KB Output is correct
12 Correct 14 ms 23864 KB Output is correct
13 Correct 14 ms 23764 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23852 KB Output is correct
16 Correct 13 ms 23848 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 17 ms 23820 KB Output is correct
19 Correct 13 ms 23872 KB Output is correct
20 Correct 13 ms 23764 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 15 ms 23776 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23828 KB Output is correct
25 Correct 14 ms 23764 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23860 KB Output is correct
28 Correct 14 ms 23764 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 12 ms 23784 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23756 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 14 ms 23872 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23868 KB Output is correct
11 Correct 15 ms 23764 KB Output is correct
12 Correct 14 ms 23864 KB Output is correct
13 Correct 14 ms 23764 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23852 KB Output is correct
16 Correct 13 ms 23848 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 17 ms 23820 KB Output is correct
19 Correct 13 ms 23872 KB Output is correct
20 Correct 13 ms 23764 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 15 ms 23776 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23828 KB Output is correct
25 Correct 14 ms 23764 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23860 KB Output is correct
28 Correct 14 ms 23764 KB Output is correct
29 Correct 82 ms 23892 KB Output is correct
30 Correct 99 ms 23892 KB Output is correct
31 Correct 112 ms 23976 KB Output is correct
32 Correct 93 ms 23972 KB Output is correct
33 Correct 80 ms 23892 KB Output is correct
34 Correct 98 ms 23960 KB Output is correct
35 Correct 115 ms 23964 KB Output is correct
36 Correct 48 ms 24012 KB Output is correct
37 Correct 87 ms 23892 KB Output is correct
38 Correct 94 ms 23944 KB Output is correct
39 Correct 92 ms 23964 KB Output is correct
40 Correct 83 ms 23892 KB Output is correct
41 Correct 85 ms 23892 KB Output is correct
42 Correct 88 ms 23992 KB Output is correct
43 Correct 78 ms 23960 KB Output is correct
44 Correct 104 ms 23960 KB Output is correct
45 Correct 117 ms 23964 KB Output is correct
46 Correct 115 ms 24080 KB Output is correct
47 Correct 86 ms 23892 KB Output is correct
48 Correct 92 ms 23952 KB Output is correct
49 Correct 97 ms 23956 KB Output is correct
50 Correct 95 ms 23892 KB Output is correct
51 Correct 79 ms 23944 KB Output is correct
52 Correct 94 ms 23892 KB Output is correct
53 Correct 108 ms 23960 KB Output is correct
54 Correct 109 ms 23972 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 12 ms 23784 KB Output is correct
3 Incorrect 1587 ms 40324 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 12 ms 23784 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23756 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 14 ms 23872 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23868 KB Output is correct
11 Correct 15 ms 23764 KB Output is correct
12 Correct 14 ms 23864 KB Output is correct
13 Correct 14 ms 23764 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23852 KB Output is correct
16 Correct 13 ms 23848 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 17 ms 23820 KB Output is correct
19 Correct 13 ms 23872 KB Output is correct
20 Correct 13 ms 23764 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 15 ms 23776 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23828 KB Output is correct
25 Correct 14 ms 23764 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23860 KB Output is correct
28 Correct 14 ms 23764 KB Output is correct
29 Incorrect 1587 ms 40324 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 12 ms 23784 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23756 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 14 ms 23872 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23868 KB Output is correct
11 Correct 15 ms 23764 KB Output is correct
12 Correct 14 ms 23864 KB Output is correct
13 Correct 14 ms 23764 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23852 KB Output is correct
16 Correct 13 ms 23848 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 17 ms 23820 KB Output is correct
19 Correct 13 ms 23872 KB Output is correct
20 Correct 13 ms 23764 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 15 ms 23776 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23828 KB Output is correct
25 Correct 14 ms 23764 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23860 KB Output is correct
28 Correct 14 ms 23764 KB Output is correct
29 Correct 82 ms 23892 KB Output is correct
30 Correct 99 ms 23892 KB Output is correct
31 Correct 112 ms 23976 KB Output is correct
32 Correct 93 ms 23972 KB Output is correct
33 Correct 80 ms 23892 KB Output is correct
34 Correct 98 ms 23960 KB Output is correct
35 Correct 115 ms 23964 KB Output is correct
36 Correct 48 ms 24012 KB Output is correct
37 Correct 87 ms 23892 KB Output is correct
38 Correct 94 ms 23944 KB Output is correct
39 Correct 92 ms 23964 KB Output is correct
40 Correct 83 ms 23892 KB Output is correct
41 Correct 85 ms 23892 KB Output is correct
42 Correct 88 ms 23992 KB Output is correct
43 Correct 78 ms 23960 KB Output is correct
44 Correct 104 ms 23960 KB Output is correct
45 Correct 117 ms 23964 KB Output is correct
46 Correct 115 ms 24080 KB Output is correct
47 Correct 86 ms 23892 KB Output is correct
48 Correct 92 ms 23952 KB Output is correct
49 Correct 97 ms 23956 KB Output is correct
50 Correct 95 ms 23892 KB Output is correct
51 Correct 79 ms 23944 KB Output is correct
52 Correct 94 ms 23892 KB Output is correct
53 Correct 108 ms 23960 KB Output is correct
54 Correct 109 ms 23972 KB Output is correct
55 Incorrect 1606 ms 39548 KB Output isn't correct
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 12 ms 23784 KB Output is correct
3 Correct 12 ms 23764 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 12 ms 23756 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23764 KB Output is correct
8 Correct 14 ms 23872 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23868 KB Output is correct
11 Correct 15 ms 23764 KB Output is correct
12 Correct 14 ms 23864 KB Output is correct
13 Correct 14 ms 23764 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 16 ms 23852 KB Output is correct
16 Correct 13 ms 23848 KB Output is correct
17 Correct 14 ms 23764 KB Output is correct
18 Correct 17 ms 23820 KB Output is correct
19 Correct 13 ms 23872 KB Output is correct
20 Correct 13 ms 23764 KB Output is correct
21 Correct 14 ms 23764 KB Output is correct
22 Correct 15 ms 23776 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23828 KB Output is correct
25 Correct 14 ms 23764 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23860 KB Output is correct
28 Correct 14 ms 23764 KB Output is correct
29 Correct 82 ms 23892 KB Output is correct
30 Correct 99 ms 23892 KB Output is correct
31 Correct 112 ms 23976 KB Output is correct
32 Correct 93 ms 23972 KB Output is correct
33 Correct 80 ms 23892 KB Output is correct
34 Correct 98 ms 23960 KB Output is correct
35 Correct 115 ms 23964 KB Output is correct
36 Correct 48 ms 24012 KB Output is correct
37 Correct 87 ms 23892 KB Output is correct
38 Correct 94 ms 23944 KB Output is correct
39 Correct 92 ms 23964 KB Output is correct
40 Correct 83 ms 23892 KB Output is correct
41 Correct 85 ms 23892 KB Output is correct
42 Correct 88 ms 23992 KB Output is correct
43 Correct 78 ms 23960 KB Output is correct
44 Correct 104 ms 23960 KB Output is correct
45 Correct 117 ms 23964 KB Output is correct
46 Correct 115 ms 24080 KB Output is correct
47 Correct 86 ms 23892 KB Output is correct
48 Correct 92 ms 23952 KB Output is correct
49 Correct 97 ms 23956 KB Output is correct
50 Correct 95 ms 23892 KB Output is correct
51 Correct 79 ms 23944 KB Output is correct
52 Correct 94 ms 23892 KB Output is correct
53 Correct 108 ms 23960 KB Output is correct
54 Correct 109 ms 23972 KB Output is correct
55 Incorrect 1587 ms 40324 KB Output isn't correct
56 Halted 0 ms 0 KB -