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Submission #526753

# Submission time Handle Problem Language Result Execution time Memory
526753 2022-02-16T03:59:45 Z joelau Osumnjičeni (COCI21_osumnjiceni) C++14
110 / 110
 311 ms 32964 KB 
#include <bits/stdc++.h>
using namespace std;

int N,Q, p[200005][20];
pair<int,int> lst[200005];
set< pair<int,int> > s;

int main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL);
    cin >> N;
    for (int i = 0; i < N; ++i) cin >> lst[i].first >> lst[i].second;
    memset(p,-1,sizeof(p));
    for (int l = 0, r = 0; l < N; ++l) {
        while (r < N) {
            bool can = true;
            auto it = s.lower_bound(make_pair(lst[r].first,-1));
            if (it != s.end() && it->first <= lst[r].second) can = false;
            if (it != s.begin() && prev(it)->second >= lst[r].first) can = false;
            if (!can) break;
            s.insert(lst[r++]);
        }
        p[l][0] = r;
        s.erase(lst[l]);
    }
    for (int k = 1; k < 20; ++k) for (int i = 0; i < N; ++i) {
        if (p[i][k-1] == -1) p[i][k] = -1;
        else p[i][k] = p[p[i][k-1]][k-1];
    }
    cin >> Q;
    while (Q--) {
        int l,r; cin >> l >> r; l--, r--;
        int ans = 1;
        for (int k = 19; k >= 0; --k) if (p[l][k] != -1 && p[l][k] <= r) ans += (1<<k), l = p[l][k];
        cout << ans << '\n';
    }

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 17860 KB Output is correct
2 Correct 80 ms 17824 KB Output is correct
3 Correct 85 ms 17888 KB Output is correct
4 Correct 141 ms 18028 KB Output is correct
5 Correct 87 ms 18148 KB Output is correct
6 Correct 71 ms 18112 KB Output is correct
7 Correct 86 ms 18080 KB Output is correct
8 Correct 92 ms 18092 KB Output is correct
9 Correct 91 ms 18212 KB Output is correct
10 Correct 120 ms 18160 KB Output is correct
11 Correct 249 ms 27428 KB Output is correct
12 Correct 251 ms 26764 KB Output is correct
13 Correct 252 ms 26700 KB Output is correct
14 Correct 210 ms 23468 KB Output is correct
15 Correct 192 ms 22132 KB Output is correct
16 Correct 7 ms 15948 KB Output is correct
17 Correct 86 ms 18232 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16068 KB Output is correct
2 Correct 10 ms 16172 KB Output is correct
3 Correct 10 ms 16076 KB Output is correct
4 Correct 14 ms 16076 KB Output is correct
5 Correct 10 ms 16144 KB Output is correct
6 Correct 10 ms 16112 KB Output is correct
7 Correct 10 ms 16076 KB Output is correct
8 Correct 13 ms 16076 KB Output is correct
9 Correct 14 ms 16156 KB Output is correct
10 Correct 12 ms 16164 KB Output is correct
11 Correct 11 ms 16332 KB Output is correct
12 Correct 11 ms 16280 KB Output is correct
13 Correct 10 ms 16300 KB Output is correct
14 Correct 12 ms 16156 KB Output is correct
15 Correct 12 ms 16180 KB Output is correct
16 Correct 7 ms 15936 KB Output is correct
17 Correct 10 ms 16076 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 16068 KB Output is correct
2 Correct 10 ms 16172 KB Output is correct
3 Correct 10 ms 16076 KB Output is correct
4 Correct 14 ms 16076 KB Output is correct
5 Correct 10 ms 16144 KB Output is correct
6 Correct 10 ms 16112 KB Output is correct
7 Correct 10 ms 16076 KB Output is correct
8 Correct 13 ms 16076 KB Output is correct
9 Correct 14 ms 16156 KB Output is correct
10 Correct 12 ms 16164 KB Output is correct
11 Correct 11 ms 16332 KB Output is correct
12 Correct 11 ms 16280 KB Output is correct
13 Correct 10 ms 16300 KB Output is correct
14 Correct 12 ms 16156 KB Output is correct
15 Correct 12 ms 16180 KB Output is correct
16 Correct 7 ms 15936 KB Output is correct
17 Correct 10 ms 16076 KB Output is correct
18 Correct 76 ms 18740 KB Output is correct
19 Correct 79 ms 18508 KB Output is correct
20 Correct 73 ms 18800 KB Output is correct
21 Correct 69 ms 18496 KB Output is correct
22 Correct 86 ms 18616 KB Output is correct
23 Correct 68 ms 18608 KB Output is correct
24 Correct 70 ms 18712 KB Output is correct
25 Correct 85 ms 18792 KB Output is correct
26 Correct 89 ms 18628 KB Output is correct
27 Correct 76 ms 18492 KB Output is correct
28 Correct 69 ms 18396 KB Output is correct
29 Correct 56 ms 18448 KB Output is correct
30 Correct 55 ms 18372 KB Output is correct
31 Correct 60 ms 18288 KB Output is correct
32 Correct 55 ms 18244 KB Output is correct
33 Correct 7 ms 15924 KB Output is correct
34 Correct 62 ms 18484 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 18284 KB Output is correct
2 Correct 117 ms 18252 KB Output is correct
3 Correct 89 ms 18144 KB Output is correct
4 Correct 80 ms 18076 KB Output is correct
5 Correct 81 ms 18204 KB Output is correct
6 Correct 74 ms 18036 KB Output is correct
7 Correct 78 ms 18132 KB Output is correct
8 Correct 87 ms 18068 KB Output is correct
9 Correct 116 ms 18036 KB Output is correct
10 Correct 100 ms 18252 KB Output is correct
11 Correct 196 ms 26688 KB Output is correct
12 Correct 260 ms 30188 KB Output is correct
13 Correct 203 ms 28872 KB Output is correct
14 Correct 175 ms 24772 KB Output is correct
15 Correct 196 ms 25984 KB Output is correct
16 Correct 8 ms 15928 KB Output is correct
17 Correct 76 ms 21028 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 17860 KB Output is correct
2 Correct 80 ms 17824 KB Output is correct
3 Correct 85 ms 17888 KB Output is correct
4 Correct 141 ms 18028 KB Output is correct
5 Correct 87 ms 18148 KB Output is correct
6 Correct 71 ms 18112 KB Output is correct
7 Correct 86 ms 18080 KB Output is correct
8 Correct 92 ms 18092 KB Output is correct
9 Correct 91 ms 18212 KB Output is correct
10 Correct 120 ms 18160 KB Output is correct
11 Correct 249 ms 27428 KB Output is correct
12 Correct 251 ms 26764 KB Output is correct
13 Correct 252 ms 26700 KB Output is correct
14 Correct 210 ms 23468 KB Output is correct
15 Correct 192 ms 22132 KB Output is correct
16 Correct 7 ms 15948 KB Output is correct
17 Correct 86 ms 18232 KB Output is correct
18 Correct 10 ms 16068 KB Output is correct
19 Correct 10 ms 16172 KB Output is correct
20 Correct 10 ms 16076 KB Output is correct
21 Correct 14 ms 16076 KB Output is correct
22 Correct 10 ms 16144 KB Output is correct
23 Correct 10 ms 16112 KB Output is correct
24 Correct 10 ms 16076 KB Output is correct
25 Correct 13 ms 16076 KB Output is correct
26 Correct 14 ms 16156 KB Output is correct
27 Correct 12 ms 16164 KB Output is correct
28 Correct 11 ms 16332 KB Output is correct
29 Correct 11 ms 16280 KB Output is correct
30 Correct 10 ms 16300 KB Output is correct
31 Correct 12 ms 16156 KB Output is correct
32 Correct 12 ms 16180 KB Output is correct
33 Correct 7 ms 15936 KB Output is correct
34 Correct 10 ms 16076 KB Output is correct
35 Correct 76 ms 18740 KB Output is correct
36 Correct 79 ms 18508 KB Output is correct
37 Correct 73 ms 18800 KB Output is correct
38 Correct 69 ms 18496 KB Output is correct
39 Correct 86 ms 18616 KB Output is correct
40 Correct 68 ms 18608 KB Output is correct
41 Correct 70 ms 18712 KB Output is correct
42 Correct 85 ms 18792 KB Output is correct
43 Correct 89 ms 18628 KB Output is correct
44 Correct 76 ms 18492 KB Output is correct
45 Correct 69 ms 18396 KB Output is correct
46 Correct 56 ms 18448 KB Output is correct
47 Correct 55 ms 18372 KB Output is correct
48 Correct 60 ms 18288 KB Output is correct
49 Correct 55 ms 18244 KB Output is correct
50 Correct 7 ms 15924 KB Output is correct
51 Correct 62 ms 18484 KB Output is correct
52 Correct 88 ms 18284 KB Output is correct
53 Correct 117 ms 18252 KB Output is correct
54 Correct 89 ms 18144 KB Output is correct
55 Correct 80 ms 18076 KB Output is correct
56 Correct 81 ms 18204 KB Output is correct
57 Correct 74 ms 18036 KB Output is correct
58 Correct 78 ms 18132 KB Output is correct
59 Correct 87 ms 18068 KB Output is correct
60 Correct 116 ms 18036 KB Output is correct
61 Correct 100 ms 18252 KB Output is correct
62 Correct 196 ms 26688 KB Output is correct
63 Correct 260 ms 30188 KB Output is correct
64 Correct 203 ms 28872 KB Output is correct
65 Correct 175 ms 24772 KB Output is correct
66 Correct 196 ms 25984 KB Output is correct
67 Correct 8 ms 15928 KB Output is correct
68 Correct 76 ms 21028 KB Output is correct
69 Correct 275 ms 24460 KB Output is correct
70 Correct 262 ms 24780 KB Output is correct
71 Correct 248 ms 24204 KB Output is correct
72 Correct 246 ms 24524 KB Output is correct
73 Correct 245 ms 24448 KB Output is correct
74 Correct 298 ms 24944 KB Output is correct
75 Correct 274 ms 24408 KB Output is correct
76 Correct 267 ms 24848 KB Output is correct
77 Correct 258 ms 24264 KB Output is correct
78 Correct 263 ms 24516 KB Output is correct
79 Correct 311 ms 32964 KB Output is correct
80 Correct 304 ms 31672 KB Output is correct
81 Correct 267 ms 31656 KB Output is correct
82 Correct 244 ms 27564 KB Output is correct
83 Correct 234 ms 27072 KB Output is correct
84 Correct 6 ms 15940 KB Output is correct
85 Correct 177 ms 24356 KB Output is correct