oj.uz

Submission #947980

# Submission time Handle Problem Language Result Execution time Memory
947980 2024-03-17T11:02:38 Z dimashhh Joker (BOI20_joker) C++17
49 / 100
 2000 ms 22924 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) {
//    cerr << v << ' ' << p[v] << '\n';
    if(p[v] == v){
        return {v,0};
    }
    pair<int,int> x = get(p[v]);
    p[v] = x.first;
    d[v] += x.second;
    return {p[v],d[v]};
}
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 2 ms 12632 KB Output is correct
3 Correct 3 ms 12768 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 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 4 ms 12788 KB Output is correct
12 Correct 3 ms 12632 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 3 ms 12660 KB Output is correct
17 Correct 3 ms 12632 KB Output is correct
18 Correct 3 ms 12776 KB Output is correct
19 Correct 4 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 4 ms 12632 KB Output is correct
22 Correct 3 ms 12636 KB Output is correct
23 Correct 4 ms 12636 KB Output is correct
24 Correct 4 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12632 KB Output is correct
27 Correct 3 ms 12636 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 2 ms 12632 KB Output is correct
3 Correct 3 ms 12768 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 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 4 ms 12788 KB Output is correct
12 Correct 3 ms 12632 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 3 ms 12660 KB Output is correct
17 Correct 3 ms 12632 KB Output is correct
18 Correct 3 ms 12776 KB Output is correct
19 Correct 4 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 4 ms 12632 KB Output is correct
22 Correct 3 ms 12636 KB Output is correct
23 Correct 4 ms 12636 KB Output is correct
24 Correct 4 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12632 KB Output is correct
27 Correct 3 ms 12636 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 13 ms 12636 KB Output is correct
30 Correct 35 ms 12636 KB Output is correct
31 Correct 50 ms 12636 KB Output is correct
32 Correct 39 ms 12632 KB Output is correct
33 Correct 42 ms 12852 KB Output is correct
34 Correct 41 ms 12636 KB Output is correct
35 Correct 42 ms 12636 KB Output is correct
36 Correct 41 ms 12632 KB Output is correct
37 Correct 44 ms 12636 KB Output is correct
38 Correct 44 ms 12892 KB Output is correct
39 Correct 43 ms 12636 KB Output is correct
40 Correct 46 ms 12852 KB Output is correct
41 Correct 44 ms 12888 KB Output is correct
42 Correct 45 ms 12852 KB Output is correct
43 Correct 35 ms 12880 KB Output is correct
44 Correct 42 ms 12636 KB Output is correct
45 Correct 57 ms 12864 KB Output is correct
46 Correct 46 ms 12892 KB Output is correct
47 Correct 37 ms 12636 KB Output is correct
48 Correct 42 ms 12636 KB Output is correct
49 Correct 53 ms 12860 KB Output is correct
50 Correct 50 ms 12860 KB Output is correct
51 Correct 38 ms 12856 KB Output is correct
52 Correct 40 ms 12864 KB Output is correct
53 Correct 43 ms 12848 KB Output is correct
54 Correct 42 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 2 ms 12632 KB Output is correct
3 Correct 70 ms 22760 KB Output is correct
4 Correct 68 ms 21736 KB Output is correct
5 Correct 70 ms 22476 KB Output is correct
6 Correct 65 ms 21680 KB Output is correct
7 Correct 77 ms 21576 KB Output is correct
8 Correct 63 ms 21064 KB Output is correct
9 Correct 61 ms 21192 KB Output is correct
10 Correct 72 ms 22000 KB Output is correct
11 Correct 65 ms 21704 KB Output is correct
12 Correct 72 ms 22248 KB Output is correct
13 Correct 65 ms 21140 KB Output is correct
14 Correct 78 ms 21412 KB Output is correct
15 Correct 66 ms 21696 KB Output is correct
16 Correct 68 ms 22400 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 2 ms 12632 KB Output is correct
3 Correct 3 ms 12768 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 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 4 ms 12788 KB Output is correct
12 Correct 3 ms 12632 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 3 ms 12660 KB Output is correct
17 Correct 3 ms 12632 KB Output is correct
18 Correct 3 ms 12776 KB Output is correct
19 Correct 4 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 4 ms 12632 KB Output is correct
22 Correct 3 ms 12636 KB Output is correct
23 Correct 4 ms 12636 KB Output is correct
24 Correct 4 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12632 KB Output is correct
27 Correct 3 ms 12636 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 70 ms 22760 KB Output is correct
30 Correct 68 ms 21736 KB Output is correct
31 Correct 70 ms 22476 KB Output is correct
32 Correct 65 ms 21680 KB Output is correct
33 Correct 77 ms 21576 KB Output is correct
34 Correct 63 ms 21064 KB Output is correct
35 Correct 61 ms 21192 KB Output is correct
36 Correct 72 ms 22000 KB Output is correct
37 Correct 65 ms 21704 KB Output is correct
38 Correct 72 ms 22248 KB Output is correct
39 Correct 65 ms 21140 KB Output is correct
40 Correct 78 ms 21412 KB Output is correct
41 Correct 66 ms 21696 KB Output is correct
42 Correct 68 ms 22400 KB Output is correct
43 Correct 953 ms 22924 KB Output is correct
44 Correct 1282 ms 22800 KB Output is correct
45 Correct 1294 ms 22276 KB Output is correct
46 Correct 1169 ms 21728 KB Output is correct
47 Correct 1268 ms 22084 KB Output is correct
48 Correct 1260 ms 22516 KB Output is correct
49 Correct 1434 ms 22876 KB Output is correct
50 Correct 1272 ms 21400 KB Output is correct
51 Correct 1312 ms 21948 KB Output is correct
52 Correct 1281 ms 22380 KB Output is correct
53 Correct 668 ms 21136 KB Output is correct
54 Correct 1069 ms 21596 KB Output is correct
55 Correct 1352 ms 21976 KB Output is correct
56 Correct 1488 ms 22684 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 2 ms 12632 KB Output is correct
3 Correct 3 ms 12768 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 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 4 ms 12788 KB Output is correct
12 Correct 3 ms 12632 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 3 ms 12660 KB Output is correct
17 Correct 3 ms 12632 KB Output is correct
18 Correct 3 ms 12776 KB Output is correct
19 Correct 4 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 4 ms 12632 KB Output is correct
22 Correct 3 ms 12636 KB Output is correct
23 Correct 4 ms 12636 KB Output is correct
24 Correct 4 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12632 KB Output is correct
27 Correct 3 ms 12636 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 13 ms 12636 KB Output is correct
30 Correct 35 ms 12636 KB Output is correct
31 Correct 50 ms 12636 KB Output is correct
32 Correct 39 ms 12632 KB Output is correct
33 Correct 42 ms 12852 KB Output is correct
34 Correct 41 ms 12636 KB Output is correct
35 Correct 42 ms 12636 KB Output is correct
36 Correct 41 ms 12632 KB Output is correct
37 Correct 44 ms 12636 KB Output is correct
38 Correct 44 ms 12892 KB Output is correct
39 Correct 43 ms 12636 KB Output is correct
40 Correct 46 ms 12852 KB Output is correct
41 Correct 44 ms 12888 KB Output is correct
42 Correct 45 ms 12852 KB Output is correct
43 Correct 35 ms 12880 KB Output is correct
44 Correct 42 ms 12636 KB Output is correct
45 Correct 57 ms 12864 KB Output is correct
46 Correct 46 ms 12892 KB Output is correct
47 Correct 37 ms 12636 KB Output is correct
48 Correct 42 ms 12636 KB Output is correct
49 Correct 53 ms 12860 KB Output is correct
50 Correct 50 ms 12860 KB Output is correct
51 Correct 38 ms 12856 KB Output is correct
52 Correct 40 ms 12864 KB Output is correct
53 Correct 43 ms 12848 KB Output is correct
54 Correct 42 ms 12892 KB Output is correct
55 Execution timed out 2005 ms 15804 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 2 ms 12632 KB Output is correct
3 Correct 3 ms 12768 KB Output is correct
4 Correct 2 ms 12632 KB Output is correct
5 Correct 2 ms 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 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 4 ms 12788 KB Output is correct
12 Correct 3 ms 12632 KB Output is correct
13 Correct 3 ms 12636 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 3 ms 12636 KB Output is correct
16 Correct 3 ms 12660 KB Output is correct
17 Correct 3 ms 12632 KB Output is correct
18 Correct 3 ms 12776 KB Output is correct
19 Correct 4 ms 12636 KB Output is correct
20 Correct 3 ms 12636 KB Output is correct
21 Correct 4 ms 12632 KB Output is correct
22 Correct 3 ms 12636 KB Output is correct
23 Correct 4 ms 12636 KB Output is correct
24 Correct 4 ms 12636 KB Output is correct
25 Correct 3 ms 12636 KB Output is correct
26 Correct 3 ms 12632 KB Output is correct
27 Correct 3 ms 12636 KB Output is correct
28 Correct 3 ms 12636 KB Output is correct
29 Correct 13 ms 12636 KB Output is correct
30 Correct 35 ms 12636 KB Output is correct
31 Correct 50 ms 12636 KB Output is correct
32 Correct 39 ms 12632 KB Output is correct
33 Correct 42 ms 12852 KB Output is correct
34 Correct 41 ms 12636 KB Output is correct
35 Correct 42 ms 12636 KB Output is correct
36 Correct 41 ms 12632 KB Output is correct
37 Correct 44 ms 12636 KB Output is correct
38 Correct 44 ms 12892 KB Output is correct
39 Correct 43 ms 12636 KB Output is correct
40 Correct 46 ms 12852 KB Output is correct
41 Correct 44 ms 12888 KB Output is correct
42 Correct 45 ms 12852 KB Output is correct
43 Correct 35 ms 12880 KB Output is correct
44 Correct 42 ms 12636 KB Output is correct
45 Correct 57 ms 12864 KB Output is correct
46 Correct 46 ms 12892 KB Output is correct
47 Correct 37 ms 12636 KB Output is correct
48 Correct 42 ms 12636 KB Output is correct
49 Correct 53 ms 12860 KB Output is correct
50 Correct 50 ms 12860 KB Output is correct
51 Correct 38 ms 12856 KB Output is correct
52 Correct 40 ms 12864 KB Output is correct
53 Correct 43 ms 12848 KB Output is correct
54 Correct 42 ms 12892 KB Output is correct
55 Correct 70 ms 22760 KB Output is correct
56 Correct 68 ms 21736 KB Output is correct
57 Correct 70 ms 22476 KB Output is correct
58 Correct 65 ms 21680 KB Output is correct
59 Correct 77 ms 21576 KB Output is correct
60 Correct 63 ms 21064 KB Output is correct
61 Correct 61 ms 21192 KB Output is correct
62 Correct 72 ms 22000 KB Output is correct
63 Correct 65 ms 21704 KB Output is correct
64 Correct 72 ms 22248 KB Output is correct
65 Correct 65 ms 21140 KB Output is correct
66 Correct 78 ms 21412 KB Output is correct
67 Correct 66 ms 21696 KB Output is correct
68 Correct 68 ms 22400 KB Output is correct
69 Correct 953 ms 22924 KB Output is correct
70 Correct 1282 ms 22800 KB Output is correct
71 Correct 1294 ms 22276 KB Output is correct
72 Correct 1169 ms 21728 KB Output is correct
73 Correct 1268 ms 22084 KB Output is correct
74 Correct 1260 ms 22516 KB Output is correct
75 Correct 1434 ms 22876 KB Output is correct
76 Correct 1272 ms 21400 KB Output is correct
77 Correct 1312 ms 21948 KB Output is correct
78 Correct 1281 ms 22380 KB Output is correct
79 Correct 668 ms 21136 KB Output is correct
80 Correct 1069 ms 21596 KB Output is correct
81 Correct 1352 ms 21976 KB Output is correct
82 Correct 1488 ms 22684 KB Output is correct
83 Execution timed out 2005 ms 15804 KB Time limit exceeded
84 Halted 0 ms 0 KB -