답안 #1027590

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1027590	2024-07-19T07:51:48 Z	Otalp	Fire (BOI24_fire)	C++14	40 / 100	59 ms	8892 KB

Main

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define pb push_back
#define ff first
#define ss second

pii a[200100];

void solve(){
    int n, m;
    cin>>n>>m;
    int ok = 0;
    vector<int> q;
    vector<pii> d;
    pii mx = {1e9, 1e9};
    for(int i=1; i<=n; i++){
        cin>>a[i].ff>>a[i].ss;
        if(a[i].ff > a[i].ss){
            q.pb(i);
            mx = min(mx, {a[i].ff, i});
            d.pb({0, a[i].ss});
            d.pb({a[i].ff, m});
        }
        else{
            d.pb(a[i]);
        }
    }   
    if(q.size() == 0){
        cout<<-1<<'\n';
        return;
    }

    sort(d.begin(), d.end());
    int ans = 1e9;
    int j = mx.ss;
    {
        int s=a[j].ss, e=a[j].ff;
        int ls = -1, g = s + 1;
        int res = 1;
        while(g < e){
            int mx = g;
            res ++;
            while(ls + 1 < d.size() and d[ls + 1].ff <= g){
                ls++;
                mx = max(mx, d[ls].ss+1);
            }
            if(mx == g){
                res = 1e9;
                break;
            }
            g = mx;
        }
        //cout<<a[j].ff<<' '<<a[j].ss<<' '<<ls<<'\n';
        ans = min(ans, res);
    }
    if(ans == 1e9) cout<<-1;
    else cout<<ans;
                
                




}

signed main(){
    solve();
}

Compilation message

Main.cpp: In function 'void solve()':
Main.cpp:45:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |             while(ls + 1 < d.size() and d[ls + 1].ff <= g){
      |                   ~~~~~~~^~~~~~~~~~
Main.cpp:14:9: warning: unused variable 'ok' [-Wunused-variable]
   14 |     int ok = 0;
      |         ^~

Subtask #1
14.0 / 14.0

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct
6	Correct	348 KB	Output is correct
7	Correct	348 KB	Output is correct
8	Correct	348 KB	Output is correct
9	Correct	444 KB	Output is correct
10	Correct	348 KB	Output is correct
11	Correct	348 KB	Output is correct
12	Correct	348 KB	Output is correct
13	Correct	348 KB	Output is correct
14	Correct	348 KB	Output is correct
15	Correct	348 KB	Output is correct
16	Correct	348 KB	Output is correct
17	Correct	348 KB	Output is correct
18	Correct	348 KB	Output is correct
19	Correct	348 KB	Output is correct
20	Correct	348 KB	Output is correct
21	Correct	348 KB	Output is correct
22	Correct	348 KB	Output is correct
23	Correct	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	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	0 ms	348 KB	Output is correct
9	Correct	0 ms	444 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	348 KB	Output is correct
24	Correct	0 ms	600 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	444 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	448 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	1 ms	420 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	348 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	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	0 ms	348 KB	Output is correct
9	Correct	0 ms	444 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	348 KB	Output is correct
24	Correct	0 ms	600 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	444 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	448 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	1 ms	420 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct
39	Correct	3 ms	600 KB	Output is correct
40	Correct	3 ms	600 KB	Output is correct
41	Correct	4 ms	672 KB	Output is correct
42	Correct	3 ms	604 KB	Output is correct
43	Correct	4 ms	604 KB	Output is correct
44	Correct	3 ms	604 KB	Output is correct
45	Correct	3 ms	604 KB	Output is correct
46	Correct	3 ms	856 KB	Output is correct
47	Correct	3 ms	604 KB	Output is correct
48	Correct	3 ms	604 KB	Output is correct
49	Correct	2 ms	604 KB	Output is correct
50	Correct	2 ms	456 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	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	440 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	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	3 ms	604 KB	Output is correct
16	Correct	2 ms	604 KB	Output is correct
17	Correct	3 ms	604 KB	Output is correct
18	Correct	3 ms	604 KB	Output is correct
19	Correct	3 ms	604 KB	Output is correct
20	Incorrect	59 ms	8476 KB	Output isn't correct
21	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	344 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	0 ms	348 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	344 KB	Output is correct
12	Correct	3 ms	604 KB	Output is correct
13	Correct	3 ms	604 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Incorrect	44 ms	8892 KB	Output isn't correct
16	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	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	0 ms	348 KB	Output is correct
9	Correct	0 ms	444 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	348 KB	Output is correct
24	Correct	0 ms	600 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	1 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	444 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	448 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	1 ms	420 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct
39	Correct	3 ms	600 KB	Output is correct
40	Correct	3 ms	600 KB	Output is correct
41	Correct	4 ms	672 KB	Output is correct
42	Correct	3 ms	604 KB	Output is correct
43	Correct	4 ms	604 KB	Output is correct
44	Correct	3 ms	604 KB	Output is correct
45	Correct	3 ms	604 KB	Output is correct
46	Correct	3 ms	856 KB	Output is correct
47	Correct	3 ms	604 KB	Output is correct
48	Correct	3 ms	604 KB	Output is correct
49	Correct	2 ms	604 KB	Output is correct
50	Correct	2 ms	456 KB	Output is correct
51	Correct	1 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	440 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	0 ms	348 KB	Output is correct
60	Correct	0 ms	348 KB	Output is correct
61	Correct	1 ms	344 KB	Output is correct
62	Correct	0 ms	344 KB	Output is correct
63	Correct	0 ms	348 KB	Output is correct
64	Correct	0 ms	348 KB	Output is correct
65	Correct	3 ms	604 KB	Output is correct
66	Correct	2 ms	604 KB	Output is correct
67	Correct	3 ms	604 KB	Output is correct
68	Correct	3 ms	604 KB	Output is correct
69	Correct	3 ms	604 KB	Output is correct
70	Incorrect	59 ms	8476 KB	Output isn't correct
71	Halted	0 ms	0 KB	-

답안 #1027590

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