답안 #1117497

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1117497	2024-11-23T19:32:03 Z	KALARRY	Global Warming (CEOI18_glo)	C++14	100 / 100	60 ms	7056 KB

//chockolateman

#include<bits/stdc++.h>

using namespace std;

const long long INF = 1e15;

long long N,x,t[200005],suff[200005],dp[200005]; //suff[i] = LIC of the suff i starting with at least t[i-1] - d + 1

int main()
{
    scanf("%lld%lld",&N,&x);
    for(long long i = 1 ; i <= N ; i++)
        scanf("%lld",&t[i]);
    dp[0] = INF;
    for(long long i = 1 ; i <= N ; i++)
        dp[i] = - INF;
    for(long long i = N ; i >= 1 ; i--)
    {
        long long pos = 0;
        for(long long b = N ; b >= 1 ; b/=2)
            while(pos + b <= N && dp[pos+b] > t[i])
                pos += b;
        dp[pos+1] = max(dp[pos+1],t[i]);
        pos = 0;
        for(long long b = N ; b >= 1 ; b/=2)
            while(pos + b <= N && dp[pos+b] > t[i-1] - x)
                pos += b;
        suff[i] = pos;
    }
    long long ans = 0;
    for(long long i = 1 ; i <= N ; i++)
        dp[i] = INF;
    dp[0] = 0;
    for(long long i = 1 ; i <= N ; i++)
    {
        long long pos = lower_bound(dp,dp+N+1,t[i]) - dp - 1;
        dp[pos+1] = min(dp[pos+1],t[i]);
        ans = max(ans,pos+1 + suff[i+1]);
    }
    printf("%lld\n",ans);
    return 0;
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%lld%lld",&N,&x);
      |     ~~~~~^~~~~~~~~~~~~~~~~~
glo.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%lld",&t[i]);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4448 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4556 KB	Output is correct
7	Correct	2 ms	4444 KB	Output is correct
8	Correct	2 ms	4432 KB	Output is correct
9	Correct	2 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	2 ms	4432 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4448 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4556 KB	Output is correct
7	Correct	2 ms	4444 KB	Output is correct
8	Correct	2 ms	4432 KB	Output is correct
9	Correct	2 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	2 ms	4432 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	2 ms	4432 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	2 ms	4432 KB	Output is correct
17	Correct	1 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4448 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4556 KB	Output is correct
7	Correct	2 ms	4444 KB	Output is correct
8	Correct	2 ms	4432 KB	Output is correct
9	Correct	2 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	2 ms	4432 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	2 ms	4432 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	2 ms	4432 KB	Output is correct
17	Correct	1 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4432 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	2 ms	4432 KB	Output is correct
22	Correct	2 ms	4432 KB	Output is correct
23	Correct	1 ms	4432 KB	Output is correct
24	Correct	1 ms	4432 KB	Output is correct
25	Correct	2 ms	4432 KB	Output is correct
26	Correct	1 ms	4432 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	50 ms	6992 KB	Output is correct
2	Correct	50 ms	7056 KB	Output is correct
3	Correct	60 ms	6992 KB	Output is correct
4	Correct	54 ms	7056 KB	Output is correct
5	Correct	38 ms	6288 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	13 ms	5200 KB	Output is correct
2	Correct	12 ms	5200 KB	Output is correct
3	Correct	12 ms	5200 KB	Output is correct
4	Correct	10 ms	5020 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	10 ms	4908 KB	Output is correct
7	Correct	10 ms	5200 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	30 ms	5680 KB	Output is correct
2	Correct	22 ms	5456 KB	Output is correct
3	Correct	46 ms	6832 KB	Output is correct
4	Correct	36 ms	6224 KB	Output is correct
5	Correct	19 ms	5200 KB	Output is correct
6	Correct	33 ms	6224 KB	Output is correct
7	Correct	36 ms	6736 KB	Output is correct
8	Correct	20 ms	5712 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4432 KB	Output is correct
2	Correct	1 ms	4432 KB	Output is correct
3	Correct	1 ms	4448 KB	Output is correct
4	Correct	1 ms	4432 KB	Output is correct
5	Correct	1 ms	4432 KB	Output is correct
6	Correct	1 ms	4556 KB	Output is correct
7	Correct	2 ms	4444 KB	Output is correct
8	Correct	2 ms	4432 KB	Output is correct
9	Correct	2 ms	4432 KB	Output is correct
10	Correct	1 ms	4432 KB	Output is correct
11	Correct	2 ms	4432 KB	Output is correct
12	Correct	1 ms	4432 KB	Output is correct
13	Correct	1 ms	4432 KB	Output is correct
14	Correct	2 ms	4432 KB	Output is correct
15	Correct	1 ms	4444 KB	Output is correct
16	Correct	2 ms	4432 KB	Output is correct
17	Correct	1 ms	4432 KB	Output is correct
18	Correct	1 ms	4432 KB	Output is correct
19	Correct	1 ms	4432 KB	Output is correct
20	Correct	1 ms	4432 KB	Output is correct
21	Correct	2 ms	4432 KB	Output is correct
22	Correct	2 ms	4432 KB	Output is correct
23	Correct	1 ms	4432 KB	Output is correct
24	Correct	1 ms	4432 KB	Output is correct
25	Correct	2 ms	4432 KB	Output is correct
26	Correct	1 ms	4432 KB	Output is correct
27	Correct	50 ms	6992 KB	Output is correct
28	Correct	50 ms	7056 KB	Output is correct
29	Correct	60 ms	6992 KB	Output is correct
30	Correct	54 ms	7056 KB	Output is correct
31	Correct	38 ms	6288 KB	Output is correct
32	Correct	13 ms	5200 KB	Output is correct
33	Correct	12 ms	5200 KB	Output is correct
34	Correct	12 ms	5200 KB	Output is correct
35	Correct	10 ms	5020 KB	Output is correct
36	Correct	1 ms	4432 KB	Output is correct
37	Correct	10 ms	4908 KB	Output is correct
38	Correct	10 ms	5200 KB	Output is correct
39	Correct	30 ms	5680 KB	Output is correct
40	Correct	22 ms	5456 KB	Output is correct
41	Correct	46 ms	6832 KB	Output is correct
42	Correct	36 ms	6224 KB	Output is correct
43	Correct	19 ms	5200 KB	Output is correct
44	Correct	33 ms	6224 KB	Output is correct
45	Correct	36 ms	6736 KB	Output is correct
46	Correct	20 ms	5712 KB	Output is correct
47	Correct	24 ms	5552 KB	Output is correct
48	Correct	24 ms	5472 KB	Output is correct
49	Correct	49 ms	6992 KB	Output is correct
50	Correct	38 ms	6224 KB	Output is correct
51	Correct	33 ms	5456 KB	Output is correct
52	Correct	38 ms	6192 KB	Output is correct
53	Correct	34 ms	6224 KB	Output is correct
54	Correct	37 ms	6992 KB	Output is correct
55	Correct	46 ms	6992 KB	Output is correct

답안 #1117497

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 13.0 / 13.0

Subtask #4 10.0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 25.0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
13.0 / 13.0

Subtask #4
10.0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
25.0 / 25.0