oj.uz

Submission #648597

# Submission time Handle Problem Language Result Execution time Memory
648597 2022-10-07T06:44:26 Z mychecksedad Joker (BOI20_joker) C++17
39 / 100
 424 ms 38536 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){
        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{
        int lb = 1, rb = m, lim = 0;
        while(lb <= rb){
            int mid = (lb + rb) >> 1;
            l = 1, r = mid;
            vis = 0;
            ok = 0;
            for(int v = 1; v <= n; ++v) if(!ok && !vis[v]) dfs(v, v, 0);
            if(ok){
                lim = mid;
                lb = mid + 1;
            }else{
                rb = mid - 1;
            }
        }
        for(int i = 1; i <= q; ++i){
            cin >> l >> r;
            cout << (r <= lim ? "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:82:16: warning: unused variable 'aa' [-Wunused-variable]
   82 |     int T = 1, aa;
      |                ^~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 12 ms 23772 KB Output is correct
3 Correct 13 ms 23764 KB Output is correct
4 Correct 12 ms 23748 KB Output is correct
5 Correct 17 ms 23764 KB Output is correct
6 Correct 13 ms 23824 KB Output is correct
7 Correct 15 ms 23752 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 23764 KB Output is correct
11 Correct 13 ms 23748 KB Output is correct
12 Correct 13 ms 23876 KB Output is correct
13 Correct 12 ms 23860 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 14 ms 23872 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 16 ms 23764 KB Output is correct
19 Correct 15 ms 23800 KB Output is correct
20 Correct 14 ms 23792 KB Output is correct
21 Correct 17 ms 23852 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23868 KB Output is correct
26 Correct 15 ms 23808 KB Output is correct
27 Correct 14 ms 23764 KB Output is correct
28 Correct 13 ms 23764 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 12 ms 23772 KB Output is correct
3 Correct 13 ms 23764 KB Output is correct
4 Correct 12 ms 23748 KB Output is correct
5 Correct 17 ms 23764 KB Output is correct
6 Correct 13 ms 23824 KB Output is correct
7 Correct 15 ms 23752 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 23764 KB Output is correct
11 Correct 13 ms 23748 KB Output is correct
12 Correct 13 ms 23876 KB Output is correct
13 Correct 12 ms 23860 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 14 ms 23872 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 16 ms 23764 KB Output is correct
19 Correct 15 ms 23800 KB Output is correct
20 Correct 14 ms 23792 KB Output is correct
21 Correct 17 ms 23852 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23868 KB Output is correct
26 Correct 15 ms 23808 KB Output is correct
27 Correct 14 ms 23764 KB Output is correct
28 Correct 13 ms 23764 KB Output is correct
29 Correct 93 ms 23880 KB Output is correct
30 Correct 106 ms 23952 KB Output is correct
31 Correct 131 ms 23892 KB Output is correct
32 Correct 95 ms 23968 KB Output is correct
33 Correct 77 ms 23948 KB Output is correct
34 Correct 99 ms 23952 KB Output is correct
35 Correct 116 ms 23848 KB Output is correct
36 Correct 46 ms 24020 KB Output is correct
37 Correct 94 ms 23972 KB Output is correct
38 Correct 106 ms 23940 KB Output is correct
39 Correct 93 ms 23952 KB Output is correct
40 Correct 84 ms 23968 KB Output is correct
41 Correct 99 ms 23892 KB Output is correct
42 Correct 102 ms 23968 KB Output is correct
43 Correct 99 ms 24072 KB Output is correct
44 Correct 111 ms 23964 KB Output is correct
45 Correct 125 ms 24088 KB Output is correct
46 Correct 148 ms 23964 KB Output is correct
47 Correct 94 ms 23944 KB Output is correct
48 Correct 96 ms 23948 KB Output is correct
49 Correct 100 ms 23956 KB Output is correct
50 Correct 121 ms 23932 KB Output is correct
51 Correct 98 ms 23952 KB Output is correct
52 Correct 126 ms 23960 KB Output is correct
53 Correct 109 ms 23956 KB Output is correct
54 Correct 121 ms 23956 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 12 ms 23772 KB Output is correct
3 Correct 245 ms 34584 KB Output is correct
4 Correct 306 ms 35080 KB Output is correct
5 Correct 212 ms 37324 KB Output is correct
6 Correct 277 ms 38176 KB Output is correct
7 Correct 265 ms 38092 KB Output is correct
8 Correct 259 ms 36772 KB Output is correct
9 Correct 304 ms 37884 KB Output is correct
10 Correct 324 ms 37032 KB Output is correct
11 Correct 262 ms 37220 KB Output is correct
12 Correct 272 ms 36404 KB Output is correct
13 Correct 178 ms 35232 KB Output is correct
14 Correct 309 ms 37484 KB Output is correct
15 Correct 424 ms 38368 KB Output is correct
16 Correct 317 ms 37320 KB Output is correct

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 12 ms 23772 KB Output is correct
3 Correct 13 ms 23764 KB Output is correct
4 Correct 12 ms 23748 KB Output is correct
5 Correct 17 ms 23764 KB Output is correct
6 Correct 13 ms 23824 KB Output is correct
7 Correct 15 ms 23752 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 23764 KB Output is correct
11 Correct 13 ms 23748 KB Output is correct
12 Correct 13 ms 23876 KB Output is correct
13 Correct 12 ms 23860 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 14 ms 23872 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 16 ms 23764 KB Output is correct
19 Correct 15 ms 23800 KB Output is correct
20 Correct 14 ms 23792 KB Output is correct
21 Correct 17 ms 23852 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23868 KB Output is correct
26 Correct 15 ms 23808 KB Output is correct
27 Correct 14 ms 23764 KB Output is correct
28 Correct 13 ms 23764 KB Output is correct
29 Correct 245 ms 34584 KB Output is correct
30 Correct 306 ms 35080 KB Output is correct
31 Correct 212 ms 37324 KB Output is correct
32 Correct 277 ms 38176 KB Output is correct
33 Correct 265 ms 38092 KB Output is correct
34 Correct 259 ms 36772 KB Output is correct
35 Correct 304 ms 37884 KB Output is correct
36 Correct 324 ms 37032 KB Output is correct
37 Correct 262 ms 37220 KB Output is correct
38 Correct 272 ms 36404 KB Output is correct
39 Correct 178 ms 35232 KB Output is correct
40 Correct 309 ms 37484 KB Output is correct
41 Correct 424 ms 38368 KB Output is correct
42 Correct 317 ms 37320 KB Output is correct
43 Incorrect 240 ms 38536 KB Output isn't correct
44 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 12 ms 23772 KB Output is correct
3 Correct 13 ms 23764 KB Output is correct
4 Correct 12 ms 23748 KB Output is correct
5 Correct 17 ms 23764 KB Output is correct
6 Correct 13 ms 23824 KB Output is correct
7 Correct 15 ms 23752 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 23764 KB Output is correct
11 Correct 13 ms 23748 KB Output is correct
12 Correct 13 ms 23876 KB Output is correct
13 Correct 12 ms 23860 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 14 ms 23872 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 16 ms 23764 KB Output is correct
19 Correct 15 ms 23800 KB Output is correct
20 Correct 14 ms 23792 KB Output is correct
21 Correct 17 ms 23852 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23868 KB Output is correct
26 Correct 15 ms 23808 KB Output is correct
27 Correct 14 ms 23764 KB Output is correct
28 Correct 13 ms 23764 KB Output is correct
29 Correct 93 ms 23880 KB Output is correct
30 Correct 106 ms 23952 KB Output is correct
31 Correct 131 ms 23892 KB Output is correct
32 Correct 95 ms 23968 KB Output is correct
33 Correct 77 ms 23948 KB Output is correct
34 Correct 99 ms 23952 KB Output is correct
35 Correct 116 ms 23848 KB Output is correct
36 Correct 46 ms 24020 KB Output is correct
37 Correct 94 ms 23972 KB Output is correct
38 Correct 106 ms 23940 KB Output is correct
39 Correct 93 ms 23952 KB Output is correct
40 Correct 84 ms 23968 KB Output is correct
41 Correct 99 ms 23892 KB Output is correct
42 Correct 102 ms 23968 KB Output is correct
43 Correct 99 ms 24072 KB Output is correct
44 Correct 111 ms 23964 KB Output is correct
45 Correct 125 ms 24088 KB Output is correct
46 Correct 148 ms 23964 KB Output is correct
47 Correct 94 ms 23944 KB Output is correct
48 Correct 96 ms 23948 KB Output is correct
49 Correct 100 ms 23956 KB Output is correct
50 Correct 121 ms 23932 KB Output is correct
51 Correct 98 ms 23952 KB Output is correct
52 Correct 126 ms 23960 KB Output is correct
53 Correct 109 ms 23956 KB Output is correct
54 Correct 121 ms 23956 KB Output is correct
55 Incorrect 172 ms 36104 KB Output isn't correct
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB Output is correct
2 Correct 12 ms 23772 KB Output is correct
3 Correct 13 ms 23764 KB Output is correct
4 Correct 12 ms 23748 KB Output is correct
5 Correct 17 ms 23764 KB Output is correct
6 Correct 13 ms 23824 KB Output is correct
7 Correct 15 ms 23752 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 23764 KB Output is correct
11 Correct 13 ms 23748 KB Output is correct
12 Correct 13 ms 23876 KB Output is correct
13 Correct 12 ms 23860 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 14 ms 23872 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 16 ms 23764 KB Output is correct
19 Correct 15 ms 23800 KB Output is correct
20 Correct 14 ms 23792 KB Output is correct
21 Correct 17 ms 23852 KB Output is correct
22 Correct 14 ms 23764 KB Output is correct
23 Correct 13 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23868 KB Output is correct
26 Correct 15 ms 23808 KB Output is correct
27 Correct 14 ms 23764 KB Output is correct
28 Correct 13 ms 23764 KB Output is correct
29 Correct 93 ms 23880 KB Output is correct
30 Correct 106 ms 23952 KB Output is correct
31 Correct 131 ms 23892 KB Output is correct
32 Correct 95 ms 23968 KB Output is correct
33 Correct 77 ms 23948 KB Output is correct
34 Correct 99 ms 23952 KB Output is correct
35 Correct 116 ms 23848 KB Output is correct
36 Correct 46 ms 24020 KB Output is correct
37 Correct 94 ms 23972 KB Output is correct
38 Correct 106 ms 23940 KB Output is correct
39 Correct 93 ms 23952 KB Output is correct
40 Correct 84 ms 23968 KB Output is correct
41 Correct 99 ms 23892 KB Output is correct
42 Correct 102 ms 23968 KB Output is correct
43 Correct 99 ms 24072 KB Output is correct
44 Correct 111 ms 23964 KB Output is correct
45 Correct 125 ms 24088 KB Output is correct
46 Correct 148 ms 23964 KB Output is correct
47 Correct 94 ms 23944 KB Output is correct
48 Correct 96 ms 23948 KB Output is correct
49 Correct 100 ms 23956 KB Output is correct
50 Correct 121 ms 23932 KB Output is correct
51 Correct 98 ms 23952 KB Output is correct
52 Correct 126 ms 23960 KB Output is correct
53 Correct 109 ms 23956 KB Output is correct
54 Correct 121 ms 23956 KB Output is correct
55 Correct 245 ms 34584 KB Output is correct
56 Correct 306 ms 35080 KB Output is correct
57 Correct 212 ms 37324 KB Output is correct
58 Correct 277 ms 38176 KB Output is correct
59 Correct 265 ms 38092 KB Output is correct
60 Correct 259 ms 36772 KB Output is correct
61 Correct 304 ms 37884 KB Output is correct
62 Correct 324 ms 37032 KB Output is correct
63 Correct 262 ms 37220 KB Output is correct
64 Correct 272 ms 36404 KB Output is correct
65 Correct 178 ms 35232 KB Output is correct
66 Correct 309 ms 37484 KB Output is correct
67 Correct 424 ms 38368 KB Output is correct
68 Correct 317 ms 37320 KB Output is correct
69 Incorrect 240 ms 38536 KB Output isn't correct
70 Halted 0 ms 0 KB -