답안 #1095802

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1095802	2024-10-03T07:56:53 Z	SalihSahin	Fire (BOI24_fire)	C++14	40 / 100	2000 ms	174160 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;
    }

    vector<int> upd(here + 1);
    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){
        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	1 ms	344 KB	Output is correct
2	Correct	0 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	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	344 KB	Output is correct
10	Correct	0 ms	348 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	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	0 ms	348 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 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	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	344 KB	Output is correct
10	Correct	0 ms	348 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	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	0 ms	348 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	604 KB	Output is correct
26	Correct	1 ms	604 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	604 KB	Output is correct
30	Correct	1 ms	348 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	604 KB	Output is correct
36	Correct	1 ms	604 KB	Output is correct
37	Correct	1 ms	604 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 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	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	344 KB	Output is correct
10	Correct	0 ms	348 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	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	0 ms	348 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	604 KB	Output is correct
26	Correct	1 ms	604 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	604 KB	Output is correct
30	Correct	1 ms	348 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	604 KB	Output is correct
36	Correct	1 ms	604 KB	Output is correct
37	Correct	1 ms	604 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	35 ms	4700 KB	Output is correct
40	Correct	44 ms	4756 KB	Output is correct
41	Correct	40 ms	4700 KB	Output is correct
42	Correct	25 ms	2652 KB	Output is correct
43	Correct	19 ms	2136 KB	Output is correct
44	Correct	26 ms	2652 KB	Output is correct
45	Correct	24 ms	2652 KB	Output is correct
46	Correct	26 ms	2680 KB	Output is correct
47	Correct	34 ms	4696 KB	Output is correct
48	Correct	32 ms	4696 KB	Output is correct
49	Correct	30 ms	4700 KB	Output is correct
50	Correct	24 ms	2648 KB	Output is correct

Subtask #4
0 / 13.0

#	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	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	604 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	344 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	604 KB	Output is correct
15	Correct	39 ms	4716 KB	Output is correct
16	Correct	27 ms	2652 KB	Output is correct
17	Correct	19 ms	2140 KB	Output is correct
18	Correct	26 ms	2652 KB	Output is correct
19	Correct	35 ms	4696 KB	Output is correct
20	Correct	36 ms	1880 KB	Output is correct
21	Execution timed out	2033 ms	174160 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 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	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	1 ms	348 KB	Output is correct
10	Correct	1 ms	608 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	38 ms	4668 KB	Output is correct
13	Correct	26 ms	2648 KB	Output is correct
14	Correct	24 ms	2652 KB	Output is correct
15	Correct	35 ms	1880 KB	Output is correct
16	Execution timed out	2033 ms	88076 KB	Time limit exceeded
17	Halted	0 ms	0 KB	-

Subtask #6
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	0 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	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	344 KB	Output is correct
10	Correct	0 ms	348 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	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	0 ms	348 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	604 KB	Output is correct
26	Correct	1 ms	604 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	604 KB	Output is correct
30	Correct	1 ms	348 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	604 KB	Output is correct
36	Correct	1 ms	604 KB	Output is correct
37	Correct	1 ms	604 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	35 ms	4700 KB	Output is correct
40	Correct	44 ms	4756 KB	Output is correct
41	Correct	40 ms	4700 KB	Output is correct
42	Correct	25 ms	2652 KB	Output is correct
43	Correct	19 ms	2136 KB	Output is correct
44	Correct	26 ms	2652 KB	Output is correct
45	Correct	24 ms	2652 KB	Output is correct
46	Correct	26 ms	2680 KB	Output is correct
47	Correct	34 ms	4696 KB	Output is correct
48	Correct	32 ms	4696 KB	Output is correct
49	Correct	30 ms	4700 KB	Output is correct
50	Correct	24 ms	2648 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	1 ms	348 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	604 KB	Output is correct
61	Correct	1 ms	348 KB	Output is correct
62	Correct	1 ms	344 KB	Output is correct
63	Correct	1 ms	348 KB	Output is correct
64	Correct	1 ms	604 KB	Output is correct
65	Correct	39 ms	4716 KB	Output is correct
66	Correct	27 ms	2652 KB	Output is correct
67	Correct	19 ms	2140 KB	Output is correct
68	Correct	26 ms	2652 KB	Output is correct
69	Correct	35 ms	4696 KB	Output is correct
70	Correct	36 ms	1880 KB	Output is correct
71	Execution timed out	2033 ms	174160 KB	Time limit exceeded
72	Halted	0 ms	0 KB	-

답안 #1095802

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