oj.uz

Submission #1108711

# Submission time Handle Problem Language Result Execution time Memory
1108711 2024-11-04T20:13:03 Z AverageAmogusEnjoyer Joker (BOI20_joker) C++17
14 / 100
 2000 ms 22344 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
template<class T> bool cmin(T &i, T j) { return i > j ? i=j,true:false; }
template<class T> bool cmax(T &i, T j) { return i < j ? i=j,true:false; }

constexpr int nax = 200200;
vector<pair<int,int>> adj[nax];
int color[nax];
pair<int,int> stk[nax];
int p = 0;

vector<bool> trova_cicli(int N, int M, int Q, vector<int> A, vector<int> B, vector<int> L, vector<int> R) {
    vector<bool> ans(Q);
    for (int i = 0; i < M; i++) {
        adj[A[i]].emplace_back(B[i],i);
        adj[B[i]].emplace_back(A[i],i);
    }
    for (int i = 0; i < Q; i++) {
        memset(color,-1,4 * N);
        int l = L[i], r = R[i];
        for (int current_node = 0; current_node < N && !ans[i]; current_node++) if (color[current_node] == -1) {
            p = 0;
            stk[p] = {current_node,0};
            color[current_node] = 0;
            while(p != -1) {
                auto &[node,idx_adj] = stk[p];
                // cout << node << " " << idx_adj << endl;
                while(idx_adj < adj[node].size() && (l <= adj[node][idx_adj].second && adj[node][idx_adj].second < r))
                    idx_adj++;
                if (idx_adj == adj[node].size()) {
                    p--;
                    continue;
                }
                int &other_node = adj[node][idx_adj].first;
                if (color[other_node] == color[node]) {
                    ans[i] = 1;
                    break;
                }
                if (color[other_node] != -1) {
                    idx_adj++;
                    continue;
                }
                color[other_node] = color[node] ^ 1;
                stk[++p] = {other_node,0}; 
            }
        }
    }
    return ans;
}

int main() {

    int N,M,Q;
    cin >> N >> M >> Q;
    vector<int> A(M),B(M),L(Q),R(Q);
    for (int i = 0; i < M; i++) {
        cin >> A[i] >> B[i];
        --A[i],--B[i];
    }
    for (int i = 0; i < Q; i++) {
        cin >> L[i] >> R[i];
        --L[i];
    }
    auto res = trova_cicli(N,M,Q,A,B,L,R);
    for (int i = 0; i < Q; i++) 
        cout << (res[i] ? "YES" : "NO") << "\n";

}

Compilation message

Joker.cpp: In function 'std::vector<bool> trova_cicli(int, int, int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
Joker.cpp:31:31: warning: comparison of integer expressions of different signedness: 'std::tuple_element<1, std::pair<int, int> >::type' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |                 while(idx_adj < adj[node].size() && (l <= adj[node][idx_adj].second && adj[node][idx_adj].second < r))
      |                       ~~~~~~~~^~~~~~~~~~~~~~~~~~
Joker.cpp:33:29: warning: comparison of integer expressions of different signedness: 'std::tuple_element<1, std::pair<int, int> >::type' {aka 'int'} and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |                 if (idx_adj == adj[node].size()) {
      |                     ~~~~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7248 KB Output is correct
2 Correct 2 ms 7248 KB Output is correct
3 Correct 2 ms 7248 KB Output is correct
4 Correct 3 ms 7248 KB Output is correct
5 Correct 3 ms 7248 KB Output is correct
6 Correct 2 ms 7248 KB Output is correct
7 Correct 3 ms 7416 KB Output is correct
8 Correct 3 ms 7248 KB Output is correct
9 Correct 3 ms 7248 KB Output is correct
10 Correct 3 ms 7248 KB Output is correct
11 Correct 4 ms 7248 KB Output is correct
12 Correct 3 ms 7332 KB Output is correct
13 Correct 3 ms 7248 KB Output is correct
14 Correct 3 ms 7248 KB Output is correct
15 Correct 3 ms 7248 KB Output is correct
16 Correct 4 ms 7248 KB Output is correct
17 Correct 3 ms 7492 KB Output is correct
18 Correct 3 ms 7248 KB Output is correct
19 Correct 3 ms 7248 KB Output is correct
20 Correct 3 ms 7248 KB Output is correct
21 Correct 3 ms 7156 KB Output is correct
22 Correct 3 ms 7248 KB Output is correct
23 Correct 3 ms 7248 KB Output is correct
24 Correct 3 ms 7248 KB Output is correct
25 Correct 3 ms 7248 KB Output is correct
26 Correct 3 ms 7248 KB Output is correct
27 Correct 3 ms 7248 KB Output is correct
28 Correct 3 ms 7248 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7248 KB Output is correct
2 Correct 2 ms 7248 KB Output is correct
3 Correct 2 ms 7248 KB Output is correct
4 Correct 3 ms 7248 KB Output is correct
5 Correct 3 ms 7248 KB Output is correct
6 Correct 2 ms 7248 KB Output is correct
7 Correct 3 ms 7416 KB Output is correct
8 Correct 3 ms 7248 KB Output is correct
9 Correct 3 ms 7248 KB Output is correct
10 Correct 3 ms 7248 KB Output is correct
11 Correct 4 ms 7248 KB Output is correct
12 Correct 3 ms 7332 KB Output is correct
13 Correct 3 ms 7248 KB Output is correct
14 Correct 3 ms 7248 KB Output is correct
15 Correct 3 ms 7248 KB Output is correct
16 Correct 4 ms 7248 KB Output is correct
17 Correct 3 ms 7492 KB Output is correct
18 Correct 3 ms 7248 KB Output is correct
19 Correct 3 ms 7248 KB Output is correct
20 Correct 3 ms 7248 KB Output is correct
21 Correct 3 ms 7156 KB Output is correct
22 Correct 3 ms 7248 KB Output is correct
23 Correct 3 ms 7248 KB Output is correct
24 Correct 3 ms 7248 KB Output is correct
25 Correct 3 ms 7248 KB Output is correct
26 Correct 3 ms 7248 KB Output is correct
27 Correct 3 ms 7248 KB Output is correct
28 Correct 3 ms 7248 KB Output is correct
29 Correct 62 ms 7436 KB Output is correct
30 Correct 47 ms 7248 KB Output is correct
31 Correct 32 ms 7248 KB Output is correct
32 Correct 17 ms 7416 KB Output is correct
33 Correct 8 ms 7332 KB Output is correct
34 Correct 28 ms 7248 KB Output is correct
35 Correct 49 ms 7248 KB Output is correct
36 Correct 17 ms 7504 KB Output is correct
37 Correct 63 ms 7248 KB Output is correct
38 Correct 83 ms 7248 KB Output is correct
39 Correct 43 ms 7248 KB Output is correct
40 Correct 18 ms 7248 KB Output is correct
41 Correct 18 ms 7420 KB Output is correct
42 Correct 17 ms 7248 KB Output is correct
43 Correct 7 ms 7488 KB Output is correct
44 Correct 6 ms 7248 KB Output is correct
45 Correct 10 ms 7248 KB Output is correct
46 Correct 12 ms 7248 KB Output is correct
47 Correct 19 ms 7480 KB Output is correct
48 Correct 21 ms 7332 KB Output is correct
49 Correct 31 ms 7248 KB Output is correct
50 Correct 37 ms 7248 KB Output is correct
51 Correct 22 ms 7248 KB Output is correct
52 Correct 26 ms 7416 KB Output is correct
53 Correct 33 ms 7248 KB Output is correct
54 Correct 46 ms 7248 KB Output is correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7248 KB Output is correct
2 Correct 2 ms 7248 KB Output is correct
3 Execution timed out 2070 ms 22344 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7248 KB Output is correct
2 Correct 2 ms 7248 KB Output is correct
3 Correct 2 ms 7248 KB Output is correct
4 Correct 3 ms 7248 KB Output is correct
5 Correct 3 ms 7248 KB Output is correct
6 Correct 2 ms 7248 KB Output is correct
7 Correct 3 ms 7416 KB Output is correct
8 Correct 3 ms 7248 KB Output is correct
9 Correct 3 ms 7248 KB Output is correct
10 Correct 3 ms 7248 KB Output is correct
11 Correct 4 ms 7248 KB Output is correct
12 Correct 3 ms 7332 KB Output is correct
13 Correct 3 ms 7248 KB Output is correct
14 Correct 3 ms 7248 KB Output is correct
15 Correct 3 ms 7248 KB Output is correct
16 Correct 4 ms 7248 KB Output is correct
17 Correct 3 ms 7492 KB Output is correct
18 Correct 3 ms 7248 KB Output is correct
19 Correct 3 ms 7248 KB Output is correct
20 Correct 3 ms 7248 KB Output is correct
21 Correct 3 ms 7156 KB Output is correct
22 Correct 3 ms 7248 KB Output is correct
23 Correct 3 ms 7248 KB Output is correct
24 Correct 3 ms 7248 KB Output is correct
25 Correct 3 ms 7248 KB Output is correct
26 Correct 3 ms 7248 KB Output is correct
27 Correct 3 ms 7248 KB Output is correct
28 Correct 3 ms 7248 KB Output is correct
29 Execution timed out 2070 ms 22344 KB Time limit exceeded
30 Halted 0 ms 0 KB -

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7248 KB Output is correct
2 Correct 2 ms 7248 KB Output is correct
3 Correct 2 ms 7248 KB Output is correct
4 Correct 3 ms 7248 KB Output is correct
5 Correct 3 ms 7248 KB Output is correct
6 Correct 2 ms 7248 KB Output is correct
7 Correct 3 ms 7416 KB Output is correct
8 Correct 3 ms 7248 KB Output is correct
9 Correct 3 ms 7248 KB Output is correct
10 Correct 3 ms 7248 KB Output is correct
11 Correct 4 ms 7248 KB Output is correct
12 Correct 3 ms 7332 KB Output is correct
13 Correct 3 ms 7248 KB Output is correct
14 Correct 3 ms 7248 KB Output is correct
15 Correct 3 ms 7248 KB Output is correct
16 Correct 4 ms 7248 KB Output is correct
17 Correct 3 ms 7492 KB Output is correct
18 Correct 3 ms 7248 KB Output is correct
19 Correct 3 ms 7248 KB Output is correct
20 Correct 3 ms 7248 KB Output is correct
21 Correct 3 ms 7156 KB Output is correct
22 Correct 3 ms 7248 KB Output is correct
23 Correct 3 ms 7248 KB Output is correct
24 Correct 3 ms 7248 KB Output is correct
25 Correct 3 ms 7248 KB Output is correct
26 Correct 3 ms 7248 KB Output is correct
27 Correct 3 ms 7248 KB Output is correct
28 Correct 3 ms 7248 KB Output is correct
29 Correct 62 ms 7436 KB Output is correct
30 Correct 47 ms 7248 KB Output is correct
31 Correct 32 ms 7248 KB Output is correct
32 Correct 17 ms 7416 KB Output is correct
33 Correct 8 ms 7332 KB Output is correct
34 Correct 28 ms 7248 KB Output is correct
35 Correct 49 ms 7248 KB Output is correct
36 Correct 17 ms 7504 KB Output is correct
37 Correct 63 ms 7248 KB Output is correct
38 Correct 83 ms 7248 KB Output is correct
39 Correct 43 ms 7248 KB Output is correct
40 Correct 18 ms 7248 KB Output is correct
41 Correct 18 ms 7420 KB Output is correct
42 Correct 17 ms 7248 KB Output is correct
43 Correct 7 ms 7488 KB Output is correct
44 Correct 6 ms 7248 KB Output is correct
45 Correct 10 ms 7248 KB Output is correct
46 Correct 12 ms 7248 KB Output is correct
47 Correct 19 ms 7480 KB Output is correct
48 Correct 21 ms 7332 KB Output is correct
49 Correct 31 ms 7248 KB Output is correct
50 Correct 37 ms 7248 KB Output is correct
51 Correct 22 ms 7248 KB Output is correct
52 Correct 26 ms 7416 KB Output is correct
53 Correct 33 ms 7248 KB Output is correct
54 Correct 46 ms 7248 KB Output is correct
55 Execution timed out 2056 ms 17736 KB Time limit exceeded
56 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7248 KB Output is correct
2 Correct 2 ms 7248 KB Output is correct
3 Correct 2 ms 7248 KB Output is correct
4 Correct 3 ms 7248 KB Output is correct
5 Correct 3 ms 7248 KB Output is correct
6 Correct 2 ms 7248 KB Output is correct
7 Correct 3 ms 7416 KB Output is correct
8 Correct 3 ms 7248 KB Output is correct
9 Correct 3 ms 7248 KB Output is correct
10 Correct 3 ms 7248 KB Output is correct
11 Correct 4 ms 7248 KB Output is correct
12 Correct 3 ms 7332 KB Output is correct
13 Correct 3 ms 7248 KB Output is correct
14 Correct 3 ms 7248 KB Output is correct
15 Correct 3 ms 7248 KB Output is correct
16 Correct 4 ms 7248 KB Output is correct
17 Correct 3 ms 7492 KB Output is correct
18 Correct 3 ms 7248 KB Output is correct
19 Correct 3 ms 7248 KB Output is correct
20 Correct 3 ms 7248 KB Output is correct
21 Correct 3 ms 7156 KB Output is correct
22 Correct 3 ms 7248 KB Output is correct
23 Correct 3 ms 7248 KB Output is correct
24 Correct 3 ms 7248 KB Output is correct
25 Correct 3 ms 7248 KB Output is correct
26 Correct 3 ms 7248 KB Output is correct
27 Correct 3 ms 7248 KB Output is correct
28 Correct 3 ms 7248 KB Output is correct
29 Correct 62 ms 7436 KB Output is correct
30 Correct 47 ms 7248 KB Output is correct
31 Correct 32 ms 7248 KB Output is correct
32 Correct 17 ms 7416 KB Output is correct
33 Correct 8 ms 7332 KB Output is correct
34 Correct 28 ms 7248 KB Output is correct
35 Correct 49 ms 7248 KB Output is correct
36 Correct 17 ms 7504 KB Output is correct
37 Correct 63 ms 7248 KB Output is correct
38 Correct 83 ms 7248 KB Output is correct
39 Correct 43 ms 7248 KB Output is correct
40 Correct 18 ms 7248 KB Output is correct
41 Correct 18 ms 7420 KB Output is correct
42 Correct 17 ms 7248 KB Output is correct
43 Correct 7 ms 7488 KB Output is correct
44 Correct 6 ms 7248 KB Output is correct
45 Correct 10 ms 7248 KB Output is correct
46 Correct 12 ms 7248 KB Output is correct
47 Correct 19 ms 7480 KB Output is correct
48 Correct 21 ms 7332 KB Output is correct
49 Correct 31 ms 7248 KB Output is correct
50 Correct 37 ms 7248 KB Output is correct
51 Correct 22 ms 7248 KB Output is correct
52 Correct 26 ms 7416 KB Output is correct
53 Correct 33 ms 7248 KB Output is correct
54 Correct 46 ms 7248 KB Output is correct
55 Execution timed out 2070 ms 22344 KB Time limit exceeded
56 Halted 0 ms 0 KB -