답안 #1039181

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1039181	2024-07-30T14:14:56 Z	Mr_Ph	Fire (BOI24_fire)	C++17	40 / 100	280 ms	258420 KB

Main

#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int mod=(int)1e9+7;
int p[900003][23];
vector<int>lol;
void solve()
{
    int n,m;
    cin>>n>>m;
    vector<pair<int,int>>arr;
    vector<int>hi;
    for(int i=0;i<n;i++)
    {
        int a,b;
        cin>>a>>b;
        hi.push_back(a);
        hi.push_back(b);
        hi.push_back(a+1);
        hi.push_back(b+1);
        arr.push_back({a,b});
    }
    hi.push_back(m);
    hi.push_back(m+1);
    sort(hi.begin(),hi.end());
    hi.erase(unique(hi.begin(),hi.end()),hi.end());
    m=lower_bound(hi.begin(),hi.end(),m)-hi.begin();
    for(int i=0;i<n;i++)
    {
        arr[i].first=lower_bound(hi.begin(),hi.end(),arr[i].first)-hi.begin();
        arr[i].second=lower_bound(hi.begin(),hi.end(),arr[i].second)-hi.begin();
    }
    // for(auto i:arr)cout<<i.first<<" "<<i.second<<endl;
    vector<vector<int>>ls(2*m+5);
    for(int i=0;i<n;i++)
    {
        if(arr[i].first>arr[i].second)arr[i].second+=m;
        p[arr[i].first][0]=max(p[arr[i].first][0],arr[i].second+1);
    }
    for(int i=0;i<2*m;i++)p[i][0]=max(p[i-1][0],p[i][0]);
    for(int i=1;i<=20;i++)
        for(int j=0;j<2*m;j++)
            p[j][i]=p[p[j][i-1]][i-1];
    int fans=1e9;
    for(int i=0;i<m;i++)
    {
        int cnt=0,cur=i;
        for(int j=20;j>=0;j--)
        {
            if(p[cur][j]<=i+m)
            {
                cur=p[cur][j];
                cnt+=(1ll<<j);
            }
        }
        if(p[cur][0]<=i+m)continue;
        cnt++;
        // cout<<i<<" "<<cnt<<" "<<cur<<" "<<p[cur][0]<<" "<<p[i][0]<<endl;
        fans=min(fans,cnt);
    }
    if(fans==1e9)cout<<-1<<endl;
    else cout<<fans<<endl;
}
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int t=1;
    // cin>>t;
    while(t--)
        solve();
}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	464 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	348 KB	Output is correct
9	Correct	0 ms	376 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	412 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	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	0 ms	348 KB	Output is correct
3	Correct	0 ms	464 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	348 KB	Output is correct
9	Correct	0 ms	376 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	412 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	348 KB	Output is correct
24	Correct	0 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	604 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	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	608 KB	Output is correct
34	Correct	1 ms	608 KB	Output is correct
35	Correct	1 ms	608 KB	Output is correct
36	Correct	1 ms	608 KB	Output is correct
37	Correct	0 ms	608 KB	Output is correct
38	Correct	1 ms	608 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	0 ms	348 KB	Output is correct
3	Correct	0 ms	464 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	348 KB	Output is correct
9	Correct	0 ms	376 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	412 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	348 KB	Output is correct
24	Correct	0 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	604 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	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	608 KB	Output is correct
34	Correct	1 ms	608 KB	Output is correct
35	Correct	1 ms	608 KB	Output is correct
36	Correct	1 ms	608 KB	Output is correct
37	Correct	0 ms	608 KB	Output is correct
38	Correct	1 ms	608 KB	Output is correct
39	Correct	7 ms	5208 KB	Output is correct
40	Correct	7 ms	5212 KB	Output is correct
41	Correct	7 ms	5208 KB	Output is correct
42	Correct	4 ms	2908 KB	Output is correct
43	Correct	4 ms	2396 KB	Output is correct
44	Correct	5 ms	2908 KB	Output is correct
45	Correct	5 ms	2904 KB	Output is correct
46	Correct	5 ms	2908 KB	Output is correct
47	Correct	7 ms	5188 KB	Output is correct
48	Correct	7 ms	5212 KB	Output is correct
49	Correct	4 ms	2776 KB	Output is correct
50	Correct	4 ms	2908 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	0 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	1 ms	604 KB	Output is correct
10	Correct	1 ms	604 KB	Output is correct
11	Correct	0 ms	604 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	620 KB	Output is correct
14	Correct	1 ms	600 KB	Output is correct
15	Correct	7 ms	5212 KB	Output is correct
16	Correct	4 ms	2908 KB	Output is correct
17	Correct	4 ms	2392 KB	Output is correct
18	Correct	4 ms	2908 KB	Output is correct
19	Correct	6 ms	5136 KB	Output is correct
20	Correct	34 ms	8004 KB	Output is correct
21	Runtime error	253 ms	258364 KB	Execution killed with signal 11
22	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 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	464 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	604 KB	Output is correct
9	Correct	1 ms	604 KB	Output is correct
10	Correct	1 ms	728 KB	Output is correct
11	Correct	0 ms	604 KB	Output is correct
12	Correct	7 ms	5208 KB	Output is correct
13	Correct	5 ms	2908 KB	Output is correct
14	Correct	4 ms	2908 KB	Output is correct
15	Correct	34 ms	8784 KB	Output is correct
16	Correct	232 ms	101460 KB	Output is correct
17	Runtime error	280 ms	258420 KB	Execution killed with signal 11
18	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	0 ms	348 KB	Output is correct
3	Correct	0 ms	464 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	348 KB	Output is correct
9	Correct	0 ms	376 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	412 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	348 KB	Output is correct
24	Correct	0 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	604 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	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	608 KB	Output is correct
34	Correct	1 ms	608 KB	Output is correct
35	Correct	1 ms	608 KB	Output is correct
36	Correct	1 ms	608 KB	Output is correct
37	Correct	0 ms	608 KB	Output is correct
38	Correct	1 ms	608 KB	Output is correct
39	Correct	7 ms	5208 KB	Output is correct
40	Correct	7 ms	5212 KB	Output is correct
41	Correct	7 ms	5208 KB	Output is correct
42	Correct	4 ms	2908 KB	Output is correct
43	Correct	4 ms	2396 KB	Output is correct
44	Correct	5 ms	2908 KB	Output is correct
45	Correct	5 ms	2904 KB	Output is correct
46	Correct	5 ms	2908 KB	Output is correct
47	Correct	7 ms	5188 KB	Output is correct
48	Correct	7 ms	5212 KB	Output is correct
49	Correct	4 ms	2776 KB	Output is correct
50	Correct	4 ms	2908 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	344 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	604 KB	Output is correct
60	Correct	1 ms	604 KB	Output is correct
61	Correct	0 ms	604 KB	Output is correct
62	Correct	0 ms	348 KB	Output is correct
63	Correct	1 ms	620 KB	Output is correct
64	Correct	1 ms	600 KB	Output is correct
65	Correct	7 ms	5212 KB	Output is correct
66	Correct	4 ms	2908 KB	Output is correct
67	Correct	4 ms	2392 KB	Output is correct
68	Correct	4 ms	2908 KB	Output is correct
69	Correct	6 ms	5136 KB	Output is correct
70	Correct	34 ms	8004 KB	Output is correct
71	Runtime error	253 ms	258364 KB	Execution killed with signal 11
72	Halted	0 ms	0 KB	-

답안 #1039181

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