oj.uz

Submission #648606

# Submission time Handle Problem Language Result Execution time Memory
648606 2022-10-07T06:52:30 Z mychecksedad Joker (BOI20_joker) C++17
14 / 100
 2000 ms 38172 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;
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 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});
    }
    if(n <= 2000 || q <= 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){
            int lb = 1, rb = m;
            lim[i] = 0;
            while(lb <= rb){
                int mid = (lb + rb) >> 1;
                l = i, r = mid;
                vis = 0;
                ok = 0;
                for(int v = 1; v <= n; ++v) if(!ok && !vis[v]) dfs(v, v, 0);
                if(ok){
                    lim[i] = mid;
                    lb = mid + 1;
                }else{
                    rb = mid - 1;
                }
            }
        }
        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:86:16: warning: unused variable 'aa' [-Wunused-variable]
   86 |     int T = 1, aa;
      |                ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 13 ms 23820 KB Output is correct
3 Correct 13 ms 23856 KB Output is correct
4 Correct 12 ms 23832 KB Output is correct
5 Correct 14 ms 23856 KB Output is correct
6 Correct 13 ms 23832 KB Output is correct
7 Correct 13 ms 23832 KB Output is correct
8 Correct 14 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 13 ms 23828 KB Output is correct
11 Correct 13 ms 23828 KB Output is correct
12 Correct 14 ms 23832 KB Output is correct
13 Correct 13 ms 23832 KB Output is correct
14 Correct 16 ms 23840 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 14 ms 23832 KB Output is correct
20 Correct 16 ms 23828 KB Output is correct
21 Correct 13 ms 23832 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23828 KB Output is correct
24 Correct 13 ms 23804 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23832 KB Output is correct
27 Correct 14 ms 23832 KB Output is correct
28 Correct 13 ms 23836 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 13 ms 23820 KB Output is correct
3 Correct 13 ms 23856 KB Output is correct
4 Correct 12 ms 23832 KB Output is correct
5 Correct 14 ms 23856 KB Output is correct
6 Correct 13 ms 23832 KB Output is correct
7 Correct 13 ms 23832 KB Output is correct
8 Correct 14 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 13 ms 23828 KB Output is correct
11 Correct 13 ms 23828 KB Output is correct
12 Correct 14 ms 23832 KB Output is correct
13 Correct 13 ms 23832 KB Output is correct
14 Correct 16 ms 23840 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 14 ms 23832 KB Output is correct
20 Correct 16 ms 23828 KB Output is correct
21 Correct 13 ms 23832 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23828 KB Output is correct
24 Correct 13 ms 23804 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23832 KB Output is correct
27 Correct 14 ms 23832 KB Output is correct
28 Correct 13 ms 23836 KB Output is correct
29 Correct 88 ms 23908 KB Output is correct
30 Correct 98 ms 23972 KB Output is correct
31 Correct 104 ms 23996 KB Output is correct
32 Correct 87 ms 23892 KB Output is correct
33 Correct 74 ms 23980 KB Output is correct
34 Correct 93 ms 23996 KB Output is correct
35 Correct 115 ms 23892 KB Output is correct
36 Correct 50 ms 24024 KB Output is correct
37 Correct 85 ms 24012 KB Output is correct
38 Correct 91 ms 23968 KB Output is correct
39 Correct 93 ms 23988 KB Output is correct
40 Correct 86 ms 24020 KB Output is correct
41 Correct 88 ms 24012 KB Output is correct
42 Correct 88 ms 24020 KB Output is correct
43 Correct 84 ms 23988 KB Output is correct
44 Correct 104 ms 23892 KB Output is correct
45 Correct 115 ms 23952 KB Output is correct
46 Correct 120 ms 23992 KB Output is correct
47 Correct 86 ms 23892 KB Output is correct
48 Correct 88 ms 23972 KB Output is correct
49 Correct 96 ms 24000 KB Output is correct
50 Correct 94 ms 23992 KB Output is correct
51 Correct 81 ms 24116 KB Output is correct
52 Correct 93 ms 24120 KB Output is correct
53 Correct 103 ms 23972 KB Output is correct
54 Correct 124 ms 24040 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 13 ms 23820 KB Output is correct
3 Execution timed out 2076 ms 38172 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 13 ms 23820 KB Output is correct
3 Correct 13 ms 23856 KB Output is correct
4 Correct 12 ms 23832 KB Output is correct
5 Correct 14 ms 23856 KB Output is correct
6 Correct 13 ms 23832 KB Output is correct
7 Correct 13 ms 23832 KB Output is correct
8 Correct 14 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 13 ms 23828 KB Output is correct
11 Correct 13 ms 23828 KB Output is correct
12 Correct 14 ms 23832 KB Output is correct
13 Correct 13 ms 23832 KB Output is correct
14 Correct 16 ms 23840 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 14 ms 23832 KB Output is correct
20 Correct 16 ms 23828 KB Output is correct
21 Correct 13 ms 23832 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23828 KB Output is correct
24 Correct 13 ms 23804 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23832 KB Output is correct
27 Correct 14 ms 23832 KB Output is correct
28 Correct 13 ms 23836 KB Output is correct
29 Execution timed out 2076 ms 38172 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 13 ms 23820 KB Output is correct
3 Correct 13 ms 23856 KB Output is correct
4 Correct 12 ms 23832 KB Output is correct
5 Correct 14 ms 23856 KB Output is correct
6 Correct 13 ms 23832 KB Output is correct
7 Correct 13 ms 23832 KB Output is correct
8 Correct 14 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 13 ms 23828 KB Output is correct
11 Correct 13 ms 23828 KB Output is correct
12 Correct 14 ms 23832 KB Output is correct
13 Correct 13 ms 23832 KB Output is correct
14 Correct 16 ms 23840 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 14 ms 23832 KB Output is correct
20 Correct 16 ms 23828 KB Output is correct
21 Correct 13 ms 23832 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23828 KB Output is correct
24 Correct 13 ms 23804 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23832 KB Output is correct
27 Correct 14 ms 23832 KB Output is correct
28 Correct 13 ms 23836 KB Output is correct
29 Correct 88 ms 23908 KB Output is correct
30 Correct 98 ms 23972 KB Output is correct
31 Correct 104 ms 23996 KB Output is correct
32 Correct 87 ms 23892 KB Output is correct
33 Correct 74 ms 23980 KB Output is correct
34 Correct 93 ms 23996 KB Output is correct
35 Correct 115 ms 23892 KB Output is correct
36 Correct 50 ms 24024 KB Output is correct
37 Correct 85 ms 24012 KB Output is correct
38 Correct 91 ms 23968 KB Output is correct
39 Correct 93 ms 23988 KB Output is correct
40 Correct 86 ms 24020 KB Output is correct
41 Correct 88 ms 24012 KB Output is correct
42 Correct 88 ms 24020 KB Output is correct
43 Correct 84 ms 23988 KB Output is correct
44 Correct 104 ms 23892 KB Output is correct
45 Correct 115 ms 23952 KB Output is correct
46 Correct 120 ms 23992 KB Output is correct
47 Correct 86 ms 23892 KB Output is correct
48 Correct 88 ms 23972 KB Output is correct
49 Correct 96 ms 24000 KB Output is correct
50 Correct 94 ms 23992 KB Output is correct
51 Correct 81 ms 24116 KB Output is correct
52 Correct 93 ms 24120 KB Output is correct
53 Correct 103 ms 23972 KB Output is correct
54 Correct 124 ms 24040 KB Output is correct
55 Execution timed out 2080 ms 37580 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 13 ms 23820 KB Output is correct
3 Correct 13 ms 23856 KB Output is correct
4 Correct 12 ms 23832 KB Output is correct
5 Correct 14 ms 23856 KB Output is correct
6 Correct 13 ms 23832 KB Output is correct
7 Correct 13 ms 23832 KB Output is correct
8 Correct 14 ms 23764 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 13 ms 23828 KB Output is correct
11 Correct 13 ms 23828 KB Output is correct
12 Correct 14 ms 23832 KB Output is correct
13 Correct 13 ms 23832 KB Output is correct
14 Correct 16 ms 23840 KB Output is correct
15 Correct 15 ms 23764 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 14 ms 23832 KB Output is correct
20 Correct 16 ms 23828 KB Output is correct
21 Correct 13 ms 23832 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23828 KB Output is correct
24 Correct 13 ms 23804 KB Output is correct
25 Correct 13 ms 23764 KB Output is correct
26 Correct 14 ms 23832 KB Output is correct
27 Correct 14 ms 23832 KB Output is correct
28 Correct 13 ms 23836 KB Output is correct
29 Correct 88 ms 23908 KB Output is correct
30 Correct 98 ms 23972 KB Output is correct
31 Correct 104 ms 23996 KB Output is correct
32 Correct 87 ms 23892 KB Output is correct
33 Correct 74 ms 23980 KB Output is correct
34 Correct 93 ms 23996 KB Output is correct
35 Correct 115 ms 23892 KB Output is correct
36 Correct 50 ms 24024 KB Output is correct
37 Correct 85 ms 24012 KB Output is correct
38 Correct 91 ms 23968 KB Output is correct
39 Correct 93 ms 23988 KB Output is correct
40 Correct 86 ms 24020 KB Output is correct
41 Correct 88 ms 24012 KB Output is correct
42 Correct 88 ms 24020 KB Output is correct
43 Correct 84 ms 23988 KB Output is correct
44 Correct 104 ms 23892 KB Output is correct
45 Correct 115 ms 23952 KB Output is correct
46 Correct 120 ms 23992 KB Output is correct
47 Correct 86 ms 23892 KB Output is correct
48 Correct 88 ms 23972 KB Output is correct
49 Correct 96 ms 24000 KB Output is correct
50 Correct 94 ms 23992 KB Output is correct
51 Correct 81 ms 24116 KB Output is correct
52 Correct 93 ms 24120 KB Output is correct
53 Correct 103 ms 23972 KB Output is correct
54 Correct 124 ms 24040 KB Output is correct
55 Execution timed out 2076 ms 38172 KB Time limit exceeded
56 Halted 0 ms 0 KB -