답안 #1105226

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1105226	2024-10-25T18:46:57 Z	alexdd	Fire (BOI24_fire)	C++17	40 / 100	2000 ms	2664 KB

Main

#include <bits/stdc++.h>
using namespace std;
const int INF = 1e9;
int n,m;
pair<int,int> v[200005];
int nxt[200005];
int get_ult(int lim)
{
    int st=0,dr=n,ans=0;
    while(st<=dr)
    {
        int mij=(st+dr)/2;
        if(v[mij].first <= lim)
        {
            ans = mij;
            st = mij+1;
        }
        else
            dr = mij-1;
    }
    return ans;
}
void calc_nxt()
{
    for(int i=1;i<=n;i++)
    {
        int mxm=v[i].second;
        nxt[i]=-1;
        for(int j=1;j<=get_ult(v[i].second);j++)
        {
            if(v[j].second > mxm)
            {
                mxm = v[j].second;
                nxt[i] = j;
            }
        }
        if(nxt[i]==i) nxt[i] = -1;
        //cout<<i<<" "<<nxt[i]<<" nxt\n";
    }
}
int main()
{
    cin>>n>>m;
    for(int i=1;i<=n;i++)
    {
        cin>>v[i].first>>v[i].second;
        if(v[i].first > v[i].second)
            v[i].second += m;
    }
    sort(v+1,v+1+n);
    calc_nxt();
    int rez=INF;
    for(int i=1;i<=n;i++)
    {
        if(v[i].second >= m)
        {
            int unde=-1,mxm=-1;
            for(int j=1;j<=get_ult(v[i].second-m);j++)
            {
                if(v[j].second > mxm)
                {
                    mxm = v[j].second;
                    unde = j;
                }
            }
            if(unde==i) unde = -1;

            int cur=unde,cnt=1;
            while(cur!=-1)
            {
                cnt++;
                if(v[cur].second >= v[i].first)
                    break;
                cur = nxt[cur];
            }
            if(cur!=-1) rez = min(rez, cnt);
        }
    }
    if(rez==INF)
        rez=-1;
    cout<<rez;
    return 0;
}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	2384 KB	Output is correct
4	Correct	1 ms	2568 KB	Output is correct
5	Correct	2 ms	2556 KB	Output is correct
6	Correct	1 ms	2384 KB	Output is correct
7	Correct	1 ms	2552 KB	Output is correct
8	Correct	1 ms	2384 KB	Output is correct
9	Correct	1 ms	2384 KB	Output is correct
10	Correct	1 ms	2384 KB	Output is correct
11	Correct	1 ms	2384 KB	Output is correct
12	Correct	1 ms	2384 KB	Output is correct
13	Correct	1 ms	2384 KB	Output is correct
14	Correct	1 ms	2384 KB	Output is correct
15	Correct	1 ms	2384 KB	Output is correct
16	Correct	1 ms	2384 KB	Output is correct
17	Correct	1 ms	2384 KB	Output is correct
18	Correct	1 ms	2384 KB	Output is correct
19	Correct	1 ms	2384 KB	Output is correct
20	Correct	1 ms	2384 KB	Output is correct
21	Correct	1 ms	2552 KB	Output is correct
22	Correct	1 ms	2384 KB	Output is correct
23	Correct	1 ms	2384 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	2384 KB	Output is correct
4	Correct	1 ms	2568 KB	Output is correct
5	Correct	2 ms	2556 KB	Output is correct
6	Correct	1 ms	2384 KB	Output is correct
7	Correct	1 ms	2552 KB	Output is correct
8	Correct	1 ms	2384 KB	Output is correct
9	Correct	1 ms	2384 KB	Output is correct
10	Correct	1 ms	2384 KB	Output is correct
11	Correct	1 ms	2384 KB	Output is correct
12	Correct	1 ms	2384 KB	Output is correct
13	Correct	1 ms	2384 KB	Output is correct
14	Correct	1 ms	2384 KB	Output is correct
15	Correct	1 ms	2384 KB	Output is correct
16	Correct	1 ms	2384 KB	Output is correct
17	Correct	1 ms	2384 KB	Output is correct
18	Correct	1 ms	2384 KB	Output is correct
19	Correct	1 ms	2384 KB	Output is correct
20	Correct	1 ms	2384 KB	Output is correct
21	Correct	1 ms	2552 KB	Output is correct
22	Correct	1 ms	2384 KB	Output is correct
23	Correct	1 ms	2384 KB	Output is correct
24	Correct	1 ms	2384 KB	Output is correct
25	Correct	1 ms	2384 KB	Output is correct
26	Correct	1 ms	2384 KB	Output is correct
27	Correct	1 ms	2384 KB	Output is correct
28	Correct	1 ms	2384 KB	Output is correct
29	Correct	2 ms	2384 KB	Output is correct
30	Correct	2 ms	2384 KB	Output is correct
31	Correct	2 ms	2384 KB	Output is correct
32	Correct	1 ms	2384 KB	Output is correct
33	Correct	2 ms	2384 KB	Output is correct
34	Correct	2 ms	2384 KB	Output is correct
35	Correct	1 ms	2384 KB	Output is correct
36	Correct	2 ms	2384 KB	Output is correct
37	Correct	1 ms	2384 KB	Output is correct
38	Correct	2 ms	2384 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	2384 KB	Output is correct
4	Correct	1 ms	2568 KB	Output is correct
5	Correct	2 ms	2556 KB	Output is correct
6	Correct	1 ms	2384 KB	Output is correct
7	Correct	1 ms	2552 KB	Output is correct
8	Correct	1 ms	2384 KB	Output is correct
9	Correct	1 ms	2384 KB	Output is correct
10	Correct	1 ms	2384 KB	Output is correct
11	Correct	1 ms	2384 KB	Output is correct
12	Correct	1 ms	2384 KB	Output is correct
13	Correct	1 ms	2384 KB	Output is correct
14	Correct	1 ms	2384 KB	Output is correct
15	Correct	1 ms	2384 KB	Output is correct
16	Correct	1 ms	2384 KB	Output is correct
17	Correct	1 ms	2384 KB	Output is correct
18	Correct	1 ms	2384 KB	Output is correct
19	Correct	1 ms	2384 KB	Output is correct
20	Correct	1 ms	2384 KB	Output is correct
21	Correct	1 ms	2552 KB	Output is correct
22	Correct	1 ms	2384 KB	Output is correct
23	Correct	1 ms	2384 KB	Output is correct
24	Correct	1 ms	2384 KB	Output is correct
25	Correct	1 ms	2384 KB	Output is correct
26	Correct	1 ms	2384 KB	Output is correct
27	Correct	1 ms	2384 KB	Output is correct
28	Correct	1 ms	2384 KB	Output is correct
29	Correct	2 ms	2384 KB	Output is correct
30	Correct	2 ms	2384 KB	Output is correct
31	Correct	2 ms	2384 KB	Output is correct
32	Correct	1 ms	2384 KB	Output is correct
33	Correct	2 ms	2384 KB	Output is correct
34	Correct	2 ms	2384 KB	Output is correct
35	Correct	1 ms	2384 KB	Output is correct
36	Correct	2 ms	2384 KB	Output is correct
37	Correct	1 ms	2384 KB	Output is correct
38	Correct	2 ms	2384 KB	Output is correct
39	Correct	122 ms	2384 KB	Output is correct
40	Correct	120 ms	2384 KB	Output is correct
41	Correct	132 ms	2384 KB	Output is correct
42	Correct	119 ms	2384 KB	Output is correct
43	Correct	171 ms	2500 KB	Output is correct
44	Correct	121 ms	2384 KB	Output is correct
45	Correct	118 ms	2500 KB	Output is correct
46	Correct	136 ms	2488 KB	Output is correct
47	Correct	120 ms	2384 KB	Output is correct
48	Correct	119 ms	2664 KB	Output is correct
49	Correct	119 ms	2384 KB	Output is correct
50	Correct	119 ms	2492 KB	Output is correct

Subtask #4
0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	2552 KB	Output is correct
4	Correct	1 ms	2384 KB	Output is correct
5	Correct	1 ms	2384 KB	Output is correct
6	Correct	1 ms	2384 KB	Output is correct
7	Correct	1 ms	2384 KB	Output is correct
8	Correct	1 ms	2384 KB	Output is correct
9	Correct	1 ms	2384 KB	Output is correct
10	Correct	1 ms	2384 KB	Output is correct
11	Correct	1 ms	2384 KB	Output is correct
12	Correct	1 ms	2384 KB	Output is correct
13	Correct	1 ms	2384 KB	Output is correct
14	Correct	1 ms	2384 KB	Output is correct
15	Correct	134 ms	2384 KB	Output is correct
16	Correct	118 ms	2504 KB	Output is correct
17	Correct	171 ms	2500 KB	Output is correct
18	Correct	119 ms	2552 KB	Output is correct
19	Correct	119 ms	2504 KB	Output is correct
20	Execution timed out	2044 ms	2596 KB	Time limit exceeded
21	Halted	0 ms	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	2384 KB	Output is correct
4	Correct	1 ms	2384 KB	Output is correct
5	Correct	1 ms	2384 KB	Output is correct
6	Correct	1 ms	2384 KB	Output is correct
7	Correct	1 ms	2384 KB	Output is correct
8	Correct	2 ms	2384 KB	Output is correct
9	Correct	1 ms	2384 KB	Output is correct
10	Correct	2 ms	2384 KB	Output is correct
11	Correct	1 ms	2384 KB	Output is correct
12	Correct	131 ms	2496 KB	Output is correct
13	Correct	118 ms	2384 KB	Output is correct
14	Correct	119 ms	2384 KB	Output is correct
15	Execution timed out	2084 ms	2596 KB	Time limit exceeded
16	Halted	0 ms	0 KB	-

Subtask #6
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2384 KB	Output is correct
2	Correct	1 ms	2384 KB	Output is correct
3	Correct	1 ms	2384 KB	Output is correct
4	Correct	1 ms	2568 KB	Output is correct
5	Correct	2 ms	2556 KB	Output is correct
6	Correct	1 ms	2384 KB	Output is correct
7	Correct	1 ms	2552 KB	Output is correct
8	Correct	1 ms	2384 KB	Output is correct
9	Correct	1 ms	2384 KB	Output is correct
10	Correct	1 ms	2384 KB	Output is correct
11	Correct	1 ms	2384 KB	Output is correct
12	Correct	1 ms	2384 KB	Output is correct
13	Correct	1 ms	2384 KB	Output is correct
14	Correct	1 ms	2384 KB	Output is correct
15	Correct	1 ms	2384 KB	Output is correct
16	Correct	1 ms	2384 KB	Output is correct
17	Correct	1 ms	2384 KB	Output is correct
18	Correct	1 ms	2384 KB	Output is correct
19	Correct	1 ms	2384 KB	Output is correct
20	Correct	1 ms	2384 KB	Output is correct
21	Correct	1 ms	2552 KB	Output is correct
22	Correct	1 ms	2384 KB	Output is correct
23	Correct	1 ms	2384 KB	Output is correct
24	Correct	1 ms	2384 KB	Output is correct
25	Correct	1 ms	2384 KB	Output is correct
26	Correct	1 ms	2384 KB	Output is correct
27	Correct	1 ms	2384 KB	Output is correct
28	Correct	1 ms	2384 KB	Output is correct
29	Correct	2 ms	2384 KB	Output is correct
30	Correct	2 ms	2384 KB	Output is correct
31	Correct	2 ms	2384 KB	Output is correct
32	Correct	1 ms	2384 KB	Output is correct
33	Correct	2 ms	2384 KB	Output is correct
34	Correct	2 ms	2384 KB	Output is correct
35	Correct	1 ms	2384 KB	Output is correct
36	Correct	2 ms	2384 KB	Output is correct
37	Correct	1 ms	2384 KB	Output is correct
38	Correct	2 ms	2384 KB	Output is correct
39	Correct	122 ms	2384 KB	Output is correct
40	Correct	120 ms	2384 KB	Output is correct
41	Correct	132 ms	2384 KB	Output is correct
42	Correct	119 ms	2384 KB	Output is correct
43	Correct	171 ms	2500 KB	Output is correct
44	Correct	121 ms	2384 KB	Output is correct
45	Correct	118 ms	2500 KB	Output is correct
46	Correct	136 ms	2488 KB	Output is correct
47	Correct	120 ms	2384 KB	Output is correct
48	Correct	119 ms	2664 KB	Output is correct
49	Correct	119 ms	2384 KB	Output is correct
50	Correct	119 ms	2492 KB	Output is correct
51	Correct	1 ms	2384 KB	Output is correct
52	Correct	1 ms	2384 KB	Output is correct
53	Correct	1 ms	2552 KB	Output is correct
54	Correct	1 ms	2384 KB	Output is correct
55	Correct	1 ms	2384 KB	Output is correct
56	Correct	1 ms	2384 KB	Output is correct
57	Correct	1 ms	2384 KB	Output is correct
58	Correct	1 ms	2384 KB	Output is correct
59	Correct	1 ms	2384 KB	Output is correct
60	Correct	1 ms	2384 KB	Output is correct
61	Correct	1 ms	2384 KB	Output is correct
62	Correct	1 ms	2384 KB	Output is correct
63	Correct	1 ms	2384 KB	Output is correct
64	Correct	1 ms	2384 KB	Output is correct
65	Correct	134 ms	2384 KB	Output is correct
66	Correct	118 ms	2504 KB	Output is correct
67	Correct	171 ms	2500 KB	Output is correct
68	Correct	119 ms	2552 KB	Output is correct
69	Correct	119 ms	2504 KB	Output is correct
70	Execution timed out	2044 ms	2596 KB	Time limit exceeded
71	Halted	0 ms	0 KB	-

답안 #1105226

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