oj.uz

Submission #1065984

# Submission time Handle Problem Language Result Execution time Memory
1065984 2024-08-19T13:52:12 Z Boomyday Fire (BOI24_fire) C++17
100 / 100
 1408 ms 87260 KB 
//
// Created by adavy on 8/19/2024.
//
#include <bits/stdc++.h>
//#pragma GCC optimize("O3")

using namespace std;

using ll = long long;

#define f first
#define s second


int main(){
    ll N,M; cin >> N >> M;
    ll B = 25;
    set<ll> coords;
    vector<ll> s(N),e(N);
    for(int i=0;i<N;++i) {
        cin >> s[i] >> e[i];
        coords.insert(s[i]);
        coords.insert(e[i]);
    }
    vector<ll> coords_v(coords.begin(),coords.end());
    map<ll,ll> coords_ind;
    for(int i=0;i<coords_v.size();++i){
        coords_ind[coords_v[i]] = i;
    }
    for(int i=0;i<N;++i){
        s[i] = coords_ind[s[i]];
        e[i] = coords_ind[e[i]];
    }
    M = coords.size();
    for(int i=0;i<N;++i){
        if (e[i] < s[i]){
            e[i] += M;
        }
    }
    // output starts and ends
    vector<vector<int>> best_next(N, vector<int>(B));
    vector<pair<pair<int,int>,int>> sweep; // time, {0 open 1 close}, number
    for(int i=0;i<N;++i){
        sweep.push_back({{s[i],0},i});
        sweep.push_back({{e[i],1},i});
    }
    sort(sweep.begin(),sweep.end());
    multiset<pair<int,int>,greater<pair<int,int>>> open; // end, number
    for(auto&[state,ind]:sweep){
        if (state.s == 0){
            open.insert({e[ind],ind});
        }
        else {
            best_next[ind][0] = open.begin()->s;
            open.erase({e[ind],ind});
        }
    }
    for(int j=1;j<B;++j){
        for(int i=0;i<N;++i){
            best_next[i][j] = best_next[best_next[i][j-1]][j-1];
        }
    }
    ll lo = 0, hi = 3*N;
    while (lo<hi){
        bool is_good = false;
        ll mid = (lo+hi)/2;
        for(int i=0;i<N;++i){
            ll cur = i;
            for(int j=0;j<B;++j){
                if (mid & (1<<j)){
                    cur = best_next[cur][j];
                }
            }
            if (e[cur] - s[i] >= M){
                //cout << i << " " << cur << " " << mid << endl;
                is_good = true;
                break;
            }
        }
        if (is_good){
            hi = mid;
        }
        else {
            lo = mid+1;
        }
    }
    if (hi == 3*N){
        cout << -1 << endl;
    }
    else {
        cout << hi+1 << endl;
    }
    // output best nexts



}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0;i<coords_v.size();++i){
      |                 ~^~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 600 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 444 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 440 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 600 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 444 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 440 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 600 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 444 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 440 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 9 ms 2652 KB Output is correct
40 Correct 11 ms 2652 KB Output is correct
41 Correct 9 ms 2688 KB Output is correct
42 Correct 8 ms 2072 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct
44 Correct 11 ms 1956 KB Output is correct
45 Correct 9 ms 2140 KB Output is correct
46 Correct 10 ms 2140 KB Output is correct
47 Correct 9 ms 2700 KB Output is correct
48 Correct 9 ms 2656 KB Output is correct
49 Correct 7 ms 2652 KB Output is correct
50 Correct 8 ms 2076 KB Output is correct

Subtask #4
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 436 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 9 ms 2652 KB Output is correct
16 Correct 8 ms 2072 KB Output is correct
17 Correct 7 ms 1884 KB Output is correct
18 Correct 10 ms 2116 KB Output is correct
19 Correct 9 ms 2652 KB Output is correct
20 Correct 151 ms 45004 KB Output is correct
21 Correct 812 ms 87092 KB Output is correct
22 Correct 699 ms 87232 KB Output is correct
23 Correct 803 ms 62740 KB Output is correct
24 Correct 1240 ms 87236 KB Output is correct
25 Correct 470 ms 58552 KB Output is correct
26 Correct 728 ms 63688 KB Output is correct
27 Correct 927 ms 63684 KB Output is correct
28 Correct 1080 ms 86072 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 600 KB Output is correct
12 Correct 15 ms 2544 KB Output is correct
13 Correct 9 ms 2072 KB Output is correct
14 Correct 8 ms 2076 KB Output is correct
15 Correct 151 ms 44868 KB Output is correct
16 Correct 1065 ms 62656 KB Output is correct
17 Correct 817 ms 87260 KB Output is correct
18 Correct 728 ms 87044 KB Output is correct
19 Correct 1218 ms 87104 KB Output is correct
20 Correct 977 ms 62656 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 600 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 444 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 440 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 9 ms 2652 KB Output is correct
40 Correct 11 ms 2652 KB Output is correct
41 Correct 9 ms 2688 KB Output is correct
42 Correct 8 ms 2072 KB Output is correct
43 Correct 7 ms 1884 KB Output is correct
44 Correct 11 ms 1956 KB Output is correct
45 Correct 9 ms 2140 KB Output is correct
46 Correct 10 ms 2140 KB Output is correct
47 Correct 9 ms 2700 KB Output is correct
48 Correct 9 ms 2656 KB Output is correct
49 Correct 7 ms 2652 KB Output is correct
50 Correct 8 ms 2076 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 436 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 9 ms 2652 KB Output is correct
66 Correct 8 ms 2072 KB Output is correct
67 Correct 7 ms 1884 KB Output is correct
68 Correct 10 ms 2116 KB Output is correct
69 Correct 9 ms 2652 KB Output is correct
70 Correct 151 ms 45004 KB Output is correct
71 Correct 812 ms 87092 KB Output is correct
72 Correct 699 ms 87232 KB Output is correct
73 Correct 803 ms 62740 KB Output is correct
74 Correct 1240 ms 87236 KB Output is correct
75 Correct 470 ms 58552 KB Output is correct
76 Correct 728 ms 63688 KB Output is correct
77 Correct 927 ms 63684 KB Output is correct
78 Correct 1080 ms 86072 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 0 ms 348 KB Output is correct
81 Correct 1 ms 348 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 1 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 1 ms 348 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 1 ms 348 KB Output is correct
89 Correct 1 ms 600 KB Output is correct
90 Correct 15 ms 2544 KB Output is correct
91 Correct 9 ms 2072 KB Output is correct
92 Correct 8 ms 2076 KB Output is correct
93 Correct 151 ms 44868 KB Output is correct
94 Correct 1065 ms 62656 KB Output is correct
95 Correct 817 ms 87260 KB Output is correct
96 Correct 728 ms 87044 KB Output is correct
97 Correct 1218 ms 87104 KB Output is correct
98 Correct 977 ms 62656 KB Output is correct
99 Correct 1343 ms 87260 KB Output is correct
100 Correct 801 ms 87236 KB Output is correct
101 Correct 1272 ms 87236 KB Output is correct
102 Correct 1245 ms 87236 KB Output is correct
103 Correct 1408 ms 63688 KB Output is correct
104 Correct 869 ms 84920 KB Output is correct
105 Correct 384 ms 85820 KB Output is correct