답안 #1095800

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1095800	2024-10-03T07:53:14 Z	SalihSahin	Fire (BOI24_fire)	C++14	40 / 100	2000 ms	212464 KB

Main

#include <bits/stdc++.h>
#define pb push_back
using namespace std;

const int N = 2e5 + 5;
const int K = 20;
const int mod = 1e9 + 7;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    int n, m;
    cin>>n>>m;
    vector<pair<int, int> > a(n);
    set<int> st;
    for(int i = 0; i < n; i++){
        cin>>a[i].first>>a[i].second;
        st.insert(a[i].first);
        st.insert(a[i].second);
        st.insert(a[i].first + m);
        st.insert(a[i].second + m);
    }
    map<int, int> pos;
    int here = 0;
    for(auto itr: st){
        pos[itr] = ++here;
    }

    map<int, int> upd;
    for(int i = 0; i < n; i++){
        int f = a[i].first, s = a[i].second;
        if(f > s){
            upd[pos[f]] = max(upd[pos[f]], s + m);
        }
        else{
            upd[pos[f]] = max(upd[pos[f]], s);
            upd[pos[f + m]] = max(upd[pos[f]], s + m);
        }
    }
    vector<vector<int> > lift(here + 1, vector<int>(K));
    int val = 0;

    for(auto itr: st){
        if(upd[pos[itr]]) val = max(val, upd[pos[itr]]);
        lift[pos[itr]][0] = val;
    }
    
    for(int i = 1; i < K; i++){
        for(int j = 1; j <= here; j++){
            lift[j][i] = lift[pos[lift[j][i-1]]][i-1];
        }
    }

    int ans = n + 23;
    for(int st = 0; st < n; st++){
        int f = a[st].first;
        int cnt = 0;
        bool ok = 1;
        int r = f;
        
        for(int bt = K-1; bt >= 0; bt--){
            if(lift[pos[r]][bt] - f < m){
                cnt += (1 << bt);
                r = lift[pos[r]][bt];
            }
        }

        if(lift[pos[r]][0] - f >= m) ans = min(ans, cnt + 1);
    }

    if(ans == n + 23) cout<<-1<<endl;
    else cout<<ans<<endl;
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:58:14: warning: unused variable 'ok' [-Wunused-variable]
   58 |         bool ok = 1;
      |              ^~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	456 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 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	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	456 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 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	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	1 ms	344 KB	Output is correct
25	Correct	2 ms	768 KB	Output is correct
26	Correct	2 ms	604 KB	Output is correct
27	Correct	2 ms	600 KB	Output is correct
28	Correct	2 ms	600 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	1 ms	600 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	1 ms	604 KB	Output is correct
33	Correct	1 ms	604 KB	Output is correct
34	Correct	2 ms	856 KB	Output is correct
35	Correct	1 ms	768 KB	Output is correct
36	Correct	2 ms	604 KB	Output is correct
37	Correct	1 ms	712 KB	Output is correct
38	Correct	2 ms	604 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	456 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 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	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	1 ms	344 KB	Output is correct
25	Correct	2 ms	768 KB	Output is correct
26	Correct	2 ms	604 KB	Output is correct
27	Correct	2 ms	600 KB	Output is correct
28	Correct	2 ms	600 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	1 ms	600 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	1 ms	604 KB	Output is correct
33	Correct	1 ms	604 KB	Output is correct
34	Correct	2 ms	856 KB	Output is correct
35	Correct	1 ms	768 KB	Output is correct
36	Correct	2 ms	604 KB	Output is correct
37	Correct	1 ms	712 KB	Output is correct
38	Correct	2 ms	604 KB	Output is correct
39	Correct	45 ms	5624 KB	Output is correct
40	Correct	47 ms	5720 KB	Output is correct
41	Correct	43 ms	5468 KB	Output is correct
42	Correct	31 ms	2904 KB	Output is correct
43	Correct	22 ms	2648 KB	Output is correct
44	Correct	30 ms	3164 KB	Output is correct
45	Correct	31 ms	3412 KB	Output is correct
46	Correct	31 ms	3164 KB	Output is correct
47	Correct	45 ms	5720 KB	Output is correct
48	Correct	39 ms	5704 KB	Output is correct
49	Correct	37 ms	5724 KB	Output is correct
50	Correct	30 ms	2908 KB	Output is correct

Subtask #4
0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	604 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	604 KB	Output is correct
10	Correct	1 ms	604 KB	Output is correct
11	Correct	1 ms	600 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	604 KB	Output is correct
14	Correct	1 ms	604 KB	Output is correct
15	Correct	45 ms	5652 KB	Output is correct
16	Correct	30 ms	2908 KB	Output is correct
17	Correct	23 ms	2648 KB	Output is correct
18	Correct	29 ms	3164 KB	Output is correct
19	Correct	40 ms	5656 KB	Output is correct
20	Correct	40 ms	2652 KB	Output is correct
21	Execution timed out	2054 ms	212464 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	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	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	2 ms	604 KB	Output is correct
9	Correct	2 ms	604 KB	Output is correct
10	Correct	2 ms	604 KB	Output is correct
11	Correct	1 ms	604 KB	Output is correct
12	Correct	44 ms	5684 KB	Output is correct
13	Correct	30 ms	3320 KB	Output is correct
14	Correct	30 ms	2908 KB	Output is correct
15	Correct	38 ms	2648 KB	Output is correct
16	Execution timed out	2073 ms	108116 KB	Time limit exceeded
17	Halted	0 ms	0 KB	-

Subtask #6
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	456 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 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	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	1 ms	344 KB	Output is correct
25	Correct	2 ms	768 KB	Output is correct
26	Correct	2 ms	604 KB	Output is correct
27	Correct	2 ms	600 KB	Output is correct
28	Correct	2 ms	600 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	1 ms	600 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	1 ms	604 KB	Output is correct
33	Correct	1 ms	604 KB	Output is correct
34	Correct	2 ms	856 KB	Output is correct
35	Correct	1 ms	768 KB	Output is correct
36	Correct	2 ms	604 KB	Output is correct
37	Correct	1 ms	712 KB	Output is correct
38	Correct	2 ms	604 KB	Output is correct
39	Correct	45 ms	5624 KB	Output is correct
40	Correct	47 ms	5720 KB	Output is correct
41	Correct	43 ms	5468 KB	Output is correct
42	Correct	31 ms	2904 KB	Output is correct
43	Correct	22 ms	2648 KB	Output is correct
44	Correct	30 ms	3164 KB	Output is correct
45	Correct	31 ms	3412 KB	Output is correct
46	Correct	31 ms	3164 KB	Output is correct
47	Correct	45 ms	5720 KB	Output is correct
48	Correct	39 ms	5704 KB	Output is correct
49	Correct	37 ms	5724 KB	Output is correct
50	Correct	30 ms	2908 KB	Output is correct
51	Correct	1 ms	348 KB	Output is correct
52	Correct	0 ms	604 KB	Output is correct
53	Correct	1 ms	348 KB	Output is correct
54	Correct	0 ms	348 KB	Output is correct
55	Correct	0 ms	348 KB	Output is correct
56	Correct	1 ms	348 KB	Output is correct
57	Correct	1 ms	348 KB	Output is correct
58	Correct	0 ms	348 KB	Output is correct
59	Correct	1 ms	604 KB	Output is correct
60	Correct	1 ms	604 KB	Output is correct
61	Correct	1 ms	600 KB	Output is correct
62	Correct	1 ms	348 KB	Output is correct
63	Correct	1 ms	604 KB	Output is correct
64	Correct	1 ms	604 KB	Output is correct
65	Correct	45 ms	5652 KB	Output is correct
66	Correct	30 ms	2908 KB	Output is correct
67	Correct	23 ms	2648 KB	Output is correct
68	Correct	29 ms	3164 KB	Output is correct
69	Correct	40 ms	5656 KB	Output is correct
70	Correct	40 ms	2652 KB	Output is correct
71	Execution timed out	2054 ms	212464 KB	Time limit exceeded
72	Halted	0 ms	0 KB	-

답안 #1095800

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 17.0 / 17.0

Subtask #3 9.0 / 9.0

Subtask #4 0 / 13.0

Subtask #5 0 / 21.0

Subtask #6 0 / 26.0

Subtask #1
14.0 / 14.0

Subtask #2
17.0 / 17.0

Subtask #3
9.0 / 9.0

Subtask #4
0 / 13.0

Subtask #5
0 / 21.0

Subtask #6
0 / 26.0