oj.uz

Submission #1006949

# Submission time Handle Problem Language Result Execution time Memory
1006949 2024-06-24T10:12:50 Z underwaterkillerwhale Joker (BOI20_joker) C++17
14 / 100
 2000 ms 21784 KB 
//#ifdef ONLINE_JUDGE
//    #include "cyberland.h"
//#endif

#include <bits/stdc++.h>
#define se              second
#define fs              first
#define mp              make_pair
#define pb              push_back
#define ll              long long
#define ii              pair<ll,ll>
#define ld              long double
#define SZ(v)           (int)v.size()
#define ALL(v)          v.begin(), v.end()
#define bit(msk, i)     ((msk >> i) & 1)
#define iter(id, v)     for(auto id : v)
#define rep(i,m,n)      for(int i=(m); i<=(n); i++)
#define reb(i,m,n)      for(int i=(m); i>=(n); i--)

using namespace std;

mt19937_64 rd(chrono :: steady_clock :: now().time_since_epoch().count());
ll Rand(ll l, ll r) { return uniform_int_distribution<ll> (l, r)(rd); }

const int N  = 2e5 + 2;
const ll Mod = 998244353;
const int szBL = 50;
const int INF = 1e9 + 7;
const int BASE = 137;

struct Query {
    int L, R;
};

int n, m, Q;
pair<int,int> edges[N];
Query qr[N];

namespace sub3 {
    vector<pair<int,int>> ke[N];
    int num[N], high[N];

    int time_dfs = 0, res = 0;
    void dfs (int u, int p, int L, int R) {
        num[u] = 1;
        high[u] = high[p] + 1;
        iter (&id, ke[u])  {
            int v, idx;
            tie (v, idx) = id;
            if (v == p || (idx >= L && idx <= R)) continue;
            if (!num[v]) {
                dfs (v, u, L, R);
            }
            else res = max(res, (high[u] - high[v] + 1) % 2);
        }
    }
    void solution() {
        rep (i, 1, m) {
            int u, v;
            tie(u, v) = edges[i];
            ke[u].push_back({v, i});
            ke[v].push_back({u, i});
        }
        rep (q, 1, Q) {
            int L = qr[q].L, R = qr[q].R;
            rep (u, 1, n) num[u] = 0;
            res = 0;
            rep (u, 1, n) {
                if (num[u]) continue;
                time_dfs = 0;
                dfs (u, 0, L, R);
            }
            if (res) cout << "YES\n";
            else cout <<"NO\n";
        }
    }
}

void solution() {
    cin >> n >> m >> Q;
    rep (i, 1, m) {
        cin >> edges[i].fs >> edges[i].se;
    }
    rep (i, 1, Q) {
        cin >> qr[i].L >> qr[i].R;
    }
    if (Q <= 2000)    sub3 :: solution();
    else cout << -1 <<"\n";

}
#define file(name) freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout);
int main () {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
//    file ("PAINT");
    int num_Test = 1;
//    cin >> num_Test;
    while (num_Test--)
        solution();
}

/*
5 7
11011
query 1 2
query 1 2
query 1 2
query 3 4
toggle 3
query 3 4
query 1 2



3 2
0 1 5
0 2 5
1
1 2

*/

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 2 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 2 ms 8536 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 2 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 2 ms 8540 KB Output is correct
23 Correct 1 ms 8540 KB Output is correct
24 Correct 2 ms 8680 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 2 ms 8540 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 2 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 2 ms 8536 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 2 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 2 ms 8540 KB Output is correct
23 Correct 1 ms 8540 KB Output is correct
24 Correct 2 ms 8680 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 2 ms 8540 KB Output is correct
29 Correct 34 ms 8540 KB Output is correct
30 Correct 85 ms 8536 KB Output is correct
31 Correct 76 ms 8540 KB Output is correct
32 Correct 60 ms 8540 KB Output is correct
33 Correct 46 ms 8784 KB Output is correct
34 Correct 78 ms 8772 KB Output is correct
35 Correct 85 ms 8788 KB Output is correct
36 Correct 30 ms 8796 KB Output is correct
37 Correct 42 ms 8792 KB Output is correct
38 Correct 38 ms 8540 KB Output is correct
39 Correct 49 ms 8540 KB Output is correct
40 Correct 51 ms 8796 KB Output is correct
41 Correct 56 ms 8796 KB Output is correct
42 Correct 52 ms 8792 KB Output is correct
43 Correct 44 ms 8536 KB Output is correct
44 Correct 58 ms 8540 KB Output is correct
45 Correct 67 ms 8536 KB Output is correct
46 Correct 72 ms 8540 KB Output is correct
47 Correct 47 ms 8540 KB Output is correct
48 Correct 49 ms 8536 KB Output is correct
49 Correct 62 ms 8536 KB Output is correct
50 Correct 71 ms 8540 KB Output is correct
51 Correct 50 ms 8780 KB Output is correct
52 Correct 65 ms 8792 KB Output is correct
53 Correct 71 ms 8772 KB Output is correct
54 Correct 85 ms 8792 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Incorrect 36 ms 9600 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 2 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 2 ms 8536 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 2 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 2 ms 8540 KB Output is correct
23 Correct 1 ms 8540 KB Output is correct
24 Correct 2 ms 8680 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 2 ms 8540 KB Output is correct
29 Incorrect 36 ms 9600 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 2 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 2 ms 8536 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 2 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 2 ms 8540 KB Output is correct
23 Correct 1 ms 8540 KB Output is correct
24 Correct 2 ms 8680 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 2 ms 8540 KB Output is correct
29 Correct 34 ms 8540 KB Output is correct
30 Correct 85 ms 8536 KB Output is correct
31 Correct 76 ms 8540 KB Output is correct
32 Correct 60 ms 8540 KB Output is correct
33 Correct 46 ms 8784 KB Output is correct
34 Correct 78 ms 8772 KB Output is correct
35 Correct 85 ms 8788 KB Output is correct
36 Correct 30 ms 8796 KB Output is correct
37 Correct 42 ms 8792 KB Output is correct
38 Correct 38 ms 8540 KB Output is correct
39 Correct 49 ms 8540 KB Output is correct
40 Correct 51 ms 8796 KB Output is correct
41 Correct 56 ms 8796 KB Output is correct
42 Correct 52 ms 8792 KB Output is correct
43 Correct 44 ms 8536 KB Output is correct
44 Correct 58 ms 8540 KB Output is correct
45 Correct 67 ms 8536 KB Output is correct
46 Correct 72 ms 8540 KB Output is correct
47 Correct 47 ms 8540 KB Output is correct
48 Correct 49 ms 8536 KB Output is correct
49 Correct 62 ms 8536 KB Output is correct
50 Correct 71 ms 8540 KB Output is correct
51 Correct 50 ms 8780 KB Output is correct
52 Correct 65 ms 8792 KB Output is correct
53 Correct 71 ms 8772 KB Output is correct
54 Correct 85 ms 8792 KB Output is correct
55 Execution timed out 2061 ms 21784 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 2 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 2 ms 8540 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 2 ms 8536 KB Output is correct
15 Correct 2 ms 8540 KB Output is correct
16 Correct 2 ms 8540 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 2 ms 8540 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 1 ms 8540 KB Output is correct
22 Correct 2 ms 8540 KB Output is correct
23 Correct 1 ms 8540 KB Output is correct
24 Correct 2 ms 8680 KB Output is correct
25 Correct 2 ms 8540 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 2 ms 8540 KB Output is correct
29 Correct 34 ms 8540 KB Output is correct
30 Correct 85 ms 8536 KB Output is correct
31 Correct 76 ms 8540 KB Output is correct
32 Correct 60 ms 8540 KB Output is correct
33 Correct 46 ms 8784 KB Output is correct
34 Correct 78 ms 8772 KB Output is correct
35 Correct 85 ms 8788 KB Output is correct
36 Correct 30 ms 8796 KB Output is correct
37 Correct 42 ms 8792 KB Output is correct
38 Correct 38 ms 8540 KB Output is correct
39 Correct 49 ms 8540 KB Output is correct
40 Correct 51 ms 8796 KB Output is correct
41 Correct 56 ms 8796 KB Output is correct
42 Correct 52 ms 8792 KB Output is correct
43 Correct 44 ms 8536 KB Output is correct
44 Correct 58 ms 8540 KB Output is correct
45 Correct 67 ms 8536 KB Output is correct
46 Correct 72 ms 8540 KB Output is correct
47 Correct 47 ms 8540 KB Output is correct
48 Correct 49 ms 8536 KB Output is correct
49 Correct 62 ms 8536 KB Output is correct
50 Correct 71 ms 8540 KB Output is correct
51 Correct 50 ms 8780 KB Output is correct
52 Correct 65 ms 8792 KB Output is correct
53 Correct 71 ms 8772 KB Output is correct
54 Correct 85 ms 8792 KB Output is correct
55 Incorrect 36 ms 9600 KB Output isn't correct
56 Halted 0 ms 0 KB -