oj.uz

Submission #948460

# Submission time Handle Problem Language Result Execution time Memory
948460 2024-03-18T06:31:48 Z dimashhh Joker (BOI20_joker) C++17
49 / 100
 2000 ms 22868 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 2e5 + 5, MOD = 998244353;

int p[N],sz[N],n,m,q,d[N];
void reset(){
    for(int i = 1;i <= n;i++){
        sz[i] = 1;
        p[i] = i;
        d[i] = 0;
    }
}
pair<int, int> get(int v) {
    if(p[v] == v){
        return {v,0};
    }
    pair<int,int> x = get(p[v]);
    return {x.first,d[v]+x.second};
}
bool merge(int a,int b){
    pair<int,int> x = get(a),y = get(b);
    if(sz[x.first] < sz[y.first]){
        swap(x,y);
    }
    a = x.first;
    b = y.first;
    if(a == b){
        if(x.second % 2 == y.second % 2){
            return false;
        }
        return true;
    }
    p[b] = a;
    sz[a] += sz[b];
    d[b] = (x.second % 2 == y.second % 2);
    return true;
}

int x[N],y[N];
vector<pair<int,int>> qr[N];
vector<int> ids[N];
bool ans[N];
void test(){
    cin >> n >> m >> q;
    for(int i = 1;i <= m;i++){
        cin >> x[i] >> y[i];
    }
    for(int i = 1;i <= q;i++){
        int l,r;
        cin >> l >> r;
        qr[l].push_back({i,r});
    }
    for(int i = 1;i <= m;i++){
        if(qr[i].size()){
            reset();
        }else continue;
        for(int j = i;j <= m;j++){
            ids[j].clear();
        }
        for(auto [id,j]:qr[i]){
            ids[j].push_back(id);
        }
        bool is = true;
        for(int j = 1;j < i;j++) {
            is &= merge(x[j],y[j]);
        }
        for(int j = m;j >= i;j--){
            for(int k:ids[j]){
                ans[k] = (!is);
            }
            is &= merge(x[j],y[j]);
        }
    }
    for(int i = 1;i <= q;i++){
        cout << (ans[i] ? "YES\n":"NO\n");
    }
}
int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    int T = 1;
//    cin >> T;
    while(T--){
        test();
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 2 ms 12632 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 3 ms 12636 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 4 ms 12792 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 4 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 3 ms 12636 KB Output is correct
19 Correct 4 ms 12888 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 3 ms 12636 KB Output is correct
22 Correct 3 ms 12632 KB Output is correct
23 Correct 3 ms 12636 KB Output is correct
24 Correct 3 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 3 ms 12784 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 2 ms 12632 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 3 ms 12636 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 4 ms 12792 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 4 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 3 ms 12636 KB Output is correct
19 Correct 4 ms 12888 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 3 ms 12636 KB Output is correct
22 Correct 3 ms 12632 KB Output is correct
23 Correct 3 ms 12636 KB Output is correct
24 Correct 3 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 3 ms 12784 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 9 ms 12632 KB Output is correct
30 Correct 23 ms 12636 KB Output is correct
31 Correct 30 ms 12992 KB Output is correct
32 Correct 28 ms 12636 KB Output is correct
33 Correct 29 ms 12892 KB Output is correct
34 Correct 28 ms 12632 KB Output is correct
35 Correct 28 ms 12632 KB Output is correct
36 Correct 20 ms 12836 KB Output is correct
37 Correct 22 ms 12884 KB Output is correct
38 Correct 22 ms 12888 KB Output is correct
39 Correct 22 ms 12636 KB Output is correct
40 Correct 25 ms 12636 KB Output is correct
41 Correct 27 ms 12632 KB Output is correct
42 Correct 24 ms 12636 KB Output is correct
43 Correct 28 ms 12884 KB Output is correct
44 Correct 28 ms 12880 KB Output is correct
45 Correct 30 ms 12884 KB Output is correct
46 Correct 27 ms 12892 KB Output is correct
47 Correct 23 ms 12632 KB Output is correct
48 Correct 27 ms 12636 KB Output is correct
49 Correct 25 ms 12860 KB Output is correct
50 Correct 25 ms 12636 KB Output is correct
51 Correct 28 ms 12636 KB Output is correct
52 Correct 29 ms 12632 KB Output is correct
53 Correct 28 ms 12888 KB Output is correct
54 Correct 27 ms 12892 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 62 ms 22808 KB Output is correct
4 Correct 68 ms 21708 KB Output is correct
5 Correct 66 ms 22308 KB Output is correct
6 Correct 61 ms 21576 KB Output is correct
7 Correct 63 ms 21560 KB Output is correct
8 Correct 62 ms 20936 KB Output is correct
9 Correct 64 ms 21192 KB Output is correct
10 Correct 69 ms 21964 KB Output is correct
11 Correct 62 ms 21580 KB Output is correct
12 Correct 63 ms 22132 KB Output is correct
13 Correct 62 ms 21196 KB Output is correct
14 Correct 62 ms 21444 KB Output is correct
15 Correct 63 ms 21704 KB Output is correct
16 Correct 75 ms 22376 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 2 ms 12632 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 3 ms 12636 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 4 ms 12792 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 4 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 3 ms 12636 KB Output is correct
19 Correct 4 ms 12888 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 3 ms 12636 KB Output is correct
22 Correct 3 ms 12632 KB Output is correct
23 Correct 3 ms 12636 KB Output is correct
24 Correct 3 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 3 ms 12784 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 62 ms 22808 KB Output is correct
30 Correct 68 ms 21708 KB Output is correct
31 Correct 66 ms 22308 KB Output is correct
32 Correct 61 ms 21576 KB Output is correct
33 Correct 63 ms 21560 KB Output is correct
34 Correct 62 ms 20936 KB Output is correct
35 Correct 64 ms 21192 KB Output is correct
36 Correct 69 ms 21964 KB Output is correct
37 Correct 62 ms 21580 KB Output is correct
38 Correct 63 ms 22132 KB Output is correct
39 Correct 62 ms 21196 KB Output is correct
40 Correct 62 ms 21444 KB Output is correct
41 Correct 63 ms 21704 KB Output is correct
42 Correct 75 ms 22376 KB Output is correct
43 Correct 699 ms 22828 KB Output is correct
44 Correct 867 ms 22768 KB Output is correct
45 Correct 917 ms 22248 KB Output is correct
46 Correct 904 ms 21812 KB Output is correct
47 Correct 1186 ms 21772 KB Output is correct
48 Correct 1370 ms 22100 KB Output is correct
49 Correct 1294 ms 22836 KB Output is correct
50 Correct 1091 ms 21636 KB Output is correct
51 Correct 1040 ms 21908 KB Output is correct
52 Correct 1020 ms 22868 KB Output is correct
53 Correct 1188 ms 21072 KB Output is correct
54 Correct 1249 ms 21488 KB Output is correct
55 Correct 1374 ms 21976 KB Output is correct
56 Correct 1292 ms 22364 KB Output is correct

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 2 ms 12632 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 3 ms 12636 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 4 ms 12792 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 4 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 3 ms 12636 KB Output is correct
19 Correct 4 ms 12888 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 3 ms 12636 KB Output is correct
22 Correct 3 ms 12632 KB Output is correct
23 Correct 3 ms 12636 KB Output is correct
24 Correct 3 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 3 ms 12784 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 9 ms 12632 KB Output is correct
30 Correct 23 ms 12636 KB Output is correct
31 Correct 30 ms 12992 KB Output is correct
32 Correct 28 ms 12636 KB Output is correct
33 Correct 29 ms 12892 KB Output is correct
34 Correct 28 ms 12632 KB Output is correct
35 Correct 28 ms 12632 KB Output is correct
36 Correct 20 ms 12836 KB Output is correct
37 Correct 22 ms 12884 KB Output is correct
38 Correct 22 ms 12888 KB Output is correct
39 Correct 22 ms 12636 KB Output is correct
40 Correct 25 ms 12636 KB Output is correct
41 Correct 27 ms 12632 KB Output is correct
42 Correct 24 ms 12636 KB Output is correct
43 Correct 28 ms 12884 KB Output is correct
44 Correct 28 ms 12880 KB Output is correct
45 Correct 30 ms 12884 KB Output is correct
46 Correct 27 ms 12892 KB Output is correct
47 Correct 23 ms 12632 KB Output is correct
48 Correct 27 ms 12636 KB Output is correct
49 Correct 25 ms 12860 KB Output is correct
50 Correct 25 ms 12636 KB Output is correct
51 Correct 28 ms 12636 KB Output is correct
52 Correct 29 ms 12632 KB Output is correct
53 Correct 28 ms 12888 KB Output is correct
54 Correct 27 ms 12892 KB Output is correct
55 Execution timed out 2012 ms 15544 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 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 3 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 2 ms 12632 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 3 ms 12636 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 4 ms 12792 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 4 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 3 ms 12636 KB Output is correct
19 Correct 4 ms 12888 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 3 ms 12636 KB Output is correct
22 Correct 3 ms 12632 KB Output is correct
23 Correct 3 ms 12636 KB Output is correct
24 Correct 3 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12636 KB Output is correct
27 Correct 3 ms 12784 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 9 ms 12632 KB Output is correct
30 Correct 23 ms 12636 KB Output is correct
31 Correct 30 ms 12992 KB Output is correct
32 Correct 28 ms 12636 KB Output is correct
33 Correct 29 ms 12892 KB Output is correct
34 Correct 28 ms 12632 KB Output is correct
35 Correct 28 ms 12632 KB Output is correct
36 Correct 20 ms 12836 KB Output is correct
37 Correct 22 ms 12884 KB Output is correct
38 Correct 22 ms 12888 KB Output is correct
39 Correct 22 ms 12636 KB Output is correct
40 Correct 25 ms 12636 KB Output is correct
41 Correct 27 ms 12632 KB Output is correct
42 Correct 24 ms 12636 KB Output is correct
43 Correct 28 ms 12884 KB Output is correct
44 Correct 28 ms 12880 KB Output is correct
45 Correct 30 ms 12884 KB Output is correct
46 Correct 27 ms 12892 KB Output is correct
47 Correct 23 ms 12632 KB Output is correct
48 Correct 27 ms 12636 KB Output is correct
49 Correct 25 ms 12860 KB Output is correct
50 Correct 25 ms 12636 KB Output is correct
51 Correct 28 ms 12636 KB Output is correct
52 Correct 29 ms 12632 KB Output is correct
53 Correct 28 ms 12888 KB Output is correct
54 Correct 27 ms 12892 KB Output is correct
55 Correct 62 ms 22808 KB Output is correct
56 Correct 68 ms 21708 KB Output is correct
57 Correct 66 ms 22308 KB Output is correct
58 Correct 61 ms 21576 KB Output is correct
59 Correct 63 ms 21560 KB Output is correct
60 Correct 62 ms 20936 KB Output is correct
61 Correct 64 ms 21192 KB Output is correct
62 Correct 69 ms 21964 KB Output is correct
63 Correct 62 ms 21580 KB Output is correct
64 Correct 63 ms 22132 KB Output is correct
65 Correct 62 ms 21196 KB Output is correct
66 Correct 62 ms 21444 KB Output is correct
67 Correct 63 ms 21704 KB Output is correct
68 Correct 75 ms 22376 KB Output is correct
69 Correct 699 ms 22828 KB Output is correct
70 Correct 867 ms 22768 KB Output is correct
71 Correct 917 ms 22248 KB Output is correct
72 Correct 904 ms 21812 KB Output is correct
73 Correct 1186 ms 21772 KB Output is correct
74 Correct 1370 ms 22100 KB Output is correct
75 Correct 1294 ms 22836 KB Output is correct
76 Correct 1091 ms 21636 KB Output is correct
77 Correct 1040 ms 21908 KB Output is correct
78 Correct 1020 ms 22868 KB Output is correct
79 Correct 1188 ms 21072 KB Output is correct
80 Correct 1249 ms 21488 KB Output is correct
81 Correct 1374 ms 21976 KB Output is correct
82 Correct 1292 ms 22364 KB Output is correct
83 Execution timed out 2012 ms 15544 KB Time limit exceeded
84 Halted 0 ms 0 KB -