답안 #255085

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
255085	2020-07-31T08:46:11 Z	Goolakh	Collecting Stamps 3 (JOI20_ho_t3)	C++17	100 / 100	71 ms	72960 KB

ho_t3

#include <bits/stdc++.h>
using namespace std;
 
#pragma GCC optimize("O2,no-stack-protector,unroll-loops,fast-math") 
 
#define F first
#define S second
#define pb push_back
#define SZ(x) (ll)(x.size())
#define all(x) x.begin(),x.end()
#define MP make_pair
 
typedef int ll;
typedef long double ld;
typedef pair<ll,ll> pll;
 
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll maxn=2e2+10, maxm=1e3+10, lg=21, mod=1e9+7, inf=1e18;

ll n,L,X[maxn],T[maxn],dp[maxn][maxn][maxn][2],it,tt,ans=0;
void mst(ll &x,ll y){x=min(x,y);}

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	
	memset(dp,69,sizeof(dp));
	cin>>n>>L;
	for(int i=1;i<=n;i++) cin>>X[i];
	for(int i=1;i<=n;i++) cin>>T[i];
	dp[0][0][0][0]=dp[0][0][1][0]=0;
	for(int b=0;b<=n;b++)for(int f=0;b+f<=n;f++)for(int k=0;k<=b+f;k++){
		it=dp[b][f][k][0];
		if(it<mod){ ans=max(ans,k);
			tt=it+X[f+1]-X[f];
			mst(dp[b][f+1][k+(tt<=T[f+1])][0],tt);
			tt=it+X[f]+L-X[n-b];
			mst(dp[b+1][f][k+(tt<=T[n-b])][1],tt);
		}
		it=dp[b][f][k][1];
		if(it<mod){ ans=max(ans,k);
			tt=it+X[n-b+1]-X[n-b];
			mst(dp[b+1][f][k+(tt<=T[n-b])][1],tt);
			tt=it+L-X[n-b+1]+X[f+1];
			mst(dp[b][f+1][k+(tt<=T[f+1])][0],tt);
		}
	}
	cout<<ans;
	
	return 0;
}

Compilation message

ho_t3.cpp:19:58: warning: overflow in implicit constant conversion [-Woverflow]
 const ll maxn=2e2+10, maxm=1e3+10, lg=21, mod=1e9+7, inf=1e18;
                                                          ^~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	72824 KB	Output is correct
2	Correct	39 ms	72812 KB	Output is correct
3	Correct	38 ms	72832 KB	Output is correct
4	Correct	37 ms	72868 KB	Output is correct
5	Correct	38 ms	72824 KB	Output is correct
6	Correct	49 ms	72824 KB	Output is correct
7	Correct	39 ms	72824 KB	Output is correct
8	Correct	38 ms	72824 KB	Output is correct
9	Correct	38 ms	72824 KB	Output is correct
10	Correct	39 ms	72824 KB	Output is correct
11	Correct	37 ms	72824 KB	Output is correct
12	Correct	38 ms	72832 KB	Output is correct
13	Correct	38 ms	72824 KB	Output is correct
14	Correct	38 ms	72832 KB	Output is correct
15	Correct	38 ms	72824 KB	Output is correct
16	Correct	38 ms	72824 KB	Output is correct
17	Correct	38 ms	72824 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	72824 KB	Output is correct
2	Correct	39 ms	72812 KB	Output is correct
3	Correct	38 ms	72832 KB	Output is correct
4	Correct	37 ms	72868 KB	Output is correct
5	Correct	38 ms	72824 KB	Output is correct
6	Correct	49 ms	72824 KB	Output is correct
7	Correct	39 ms	72824 KB	Output is correct
8	Correct	38 ms	72824 KB	Output is correct
9	Correct	38 ms	72824 KB	Output is correct
10	Correct	39 ms	72824 KB	Output is correct
11	Correct	37 ms	72824 KB	Output is correct
12	Correct	38 ms	72832 KB	Output is correct
13	Correct	38 ms	72824 KB	Output is correct
14	Correct	38 ms	72832 KB	Output is correct
15	Correct	38 ms	72824 KB	Output is correct
16	Correct	38 ms	72824 KB	Output is correct
17	Correct	38 ms	72824 KB	Output is correct
18	Correct	40 ms	72832 KB	Output is correct
19	Correct	39 ms	72824 KB	Output is correct
20	Correct	38 ms	72824 KB	Output is correct
21	Correct	37 ms	72824 KB	Output is correct
22	Correct	37 ms	72824 KB	Output is correct
23	Correct	40 ms	72824 KB	Output is correct
24	Correct	37 ms	72832 KB	Output is correct
25	Correct	38 ms	72824 KB	Output is correct
26	Correct	38 ms	72824 KB	Output is correct
27	Correct	37 ms	72824 KB	Output is correct
28	Correct	37 ms	72824 KB	Output is correct
29	Correct	38 ms	72828 KB	Output is correct
30	Correct	41 ms	72848 KB	Output is correct
31	Correct	37 ms	72824 KB	Output is correct
32	Correct	37 ms	72824 KB	Output is correct
33	Correct	38 ms	72824 KB	Output is correct
34	Correct	37 ms	72824 KB	Output is correct
35	Correct	37 ms	72832 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	72824 KB	Output is correct
2	Correct	39 ms	72812 KB	Output is correct
3	Correct	38 ms	72832 KB	Output is correct
4	Correct	37 ms	72868 KB	Output is correct
5	Correct	38 ms	72824 KB	Output is correct
6	Correct	49 ms	72824 KB	Output is correct
7	Correct	39 ms	72824 KB	Output is correct
8	Correct	38 ms	72824 KB	Output is correct
9	Correct	38 ms	72824 KB	Output is correct
10	Correct	39 ms	72824 KB	Output is correct
11	Correct	37 ms	72824 KB	Output is correct
12	Correct	38 ms	72832 KB	Output is correct
13	Correct	38 ms	72824 KB	Output is correct
14	Correct	38 ms	72832 KB	Output is correct
15	Correct	38 ms	72824 KB	Output is correct
16	Correct	38 ms	72824 KB	Output is correct
17	Correct	38 ms	72824 KB	Output is correct
18	Correct	58 ms	72952 KB	Output is correct
19	Correct	48 ms	72824 KB	Output is correct
20	Correct	41 ms	72824 KB	Output is correct
21	Correct	48 ms	72824 KB	Output is correct
22	Correct	53 ms	72824 KB	Output is correct
23	Correct	42 ms	72824 KB	Output is correct
24	Correct	39 ms	72828 KB	Output is correct
25	Correct	42 ms	72824 KB	Output is correct
26	Correct	39 ms	72824 KB	Output is correct
27	Correct	43 ms	72952 KB	Output is correct
28	Correct	39 ms	72824 KB	Output is correct
29	Correct	43 ms	72832 KB	Output is correct
30	Correct	39 ms	72824 KB	Output is correct
31	Correct	41 ms	72824 KB	Output is correct
32	Correct	46 ms	72952 KB	Output is correct
33	Correct	41 ms	72824 KB	Output is correct
34	Correct	39 ms	72824 KB	Output is correct
35	Correct	40 ms	72824 KB	Output is correct
36	Correct	48 ms	72828 KB	Output is correct
37	Correct	41 ms	72824 KB	Output is correct
38	Correct	41 ms	72824 KB	Output is correct
39	Correct	41 ms	72824 KB	Output is correct
40	Correct	39 ms	72824 KB	Output is correct
41	Correct	69 ms	72832 KB	Output is correct
42	Correct	42 ms	72824 KB	Output is correct
43	Correct	71 ms	72884 KB	Output is correct
44	Correct	42 ms	72960 KB	Output is correct
45	Correct	70 ms	72920 KB	Output is correct
46	Correct	41 ms	72824 KB	Output is correct

Subtask #4
75.0 / 75.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	72824 KB	Output is correct
2	Correct	39 ms	72812 KB	Output is correct
3	Correct	38 ms	72832 KB	Output is correct
4	Correct	37 ms	72868 KB	Output is correct
5	Correct	38 ms	72824 KB	Output is correct
6	Correct	49 ms	72824 KB	Output is correct
7	Correct	39 ms	72824 KB	Output is correct
8	Correct	38 ms	72824 KB	Output is correct
9	Correct	38 ms	72824 KB	Output is correct
10	Correct	39 ms	72824 KB	Output is correct
11	Correct	37 ms	72824 KB	Output is correct
12	Correct	38 ms	72832 KB	Output is correct
13	Correct	38 ms	72824 KB	Output is correct
14	Correct	38 ms	72832 KB	Output is correct
15	Correct	38 ms	72824 KB	Output is correct
16	Correct	38 ms	72824 KB	Output is correct
17	Correct	38 ms	72824 KB	Output is correct
18	Correct	40 ms	72832 KB	Output is correct
19	Correct	39 ms	72824 KB	Output is correct
20	Correct	38 ms	72824 KB	Output is correct
21	Correct	37 ms	72824 KB	Output is correct
22	Correct	37 ms	72824 KB	Output is correct
23	Correct	40 ms	72824 KB	Output is correct
24	Correct	37 ms	72832 KB	Output is correct
25	Correct	38 ms	72824 KB	Output is correct
26	Correct	38 ms	72824 KB	Output is correct
27	Correct	37 ms	72824 KB	Output is correct
28	Correct	37 ms	72824 KB	Output is correct
29	Correct	38 ms	72828 KB	Output is correct
30	Correct	41 ms	72848 KB	Output is correct
31	Correct	37 ms	72824 KB	Output is correct
32	Correct	37 ms	72824 KB	Output is correct
33	Correct	38 ms	72824 KB	Output is correct
34	Correct	37 ms	72824 KB	Output is correct
35	Correct	37 ms	72832 KB	Output is correct
36	Correct	58 ms	72952 KB	Output is correct
37	Correct	48 ms	72824 KB	Output is correct
38	Correct	41 ms	72824 KB	Output is correct
39	Correct	48 ms	72824 KB	Output is correct
40	Correct	53 ms	72824 KB	Output is correct
41	Correct	42 ms	72824 KB	Output is correct
42	Correct	39 ms	72828 KB	Output is correct
43	Correct	42 ms	72824 KB	Output is correct
44	Correct	39 ms	72824 KB	Output is correct
45	Correct	43 ms	72952 KB	Output is correct
46	Correct	39 ms	72824 KB	Output is correct
47	Correct	43 ms	72832 KB	Output is correct
48	Correct	39 ms	72824 KB	Output is correct
49	Correct	41 ms	72824 KB	Output is correct
50	Correct	46 ms	72952 KB	Output is correct
51	Correct	41 ms	72824 KB	Output is correct
52	Correct	39 ms	72824 KB	Output is correct
53	Correct	40 ms	72824 KB	Output is correct
54	Correct	48 ms	72828 KB	Output is correct
55	Correct	41 ms	72824 KB	Output is correct
56	Correct	41 ms	72824 KB	Output is correct
57	Correct	41 ms	72824 KB	Output is correct
58	Correct	39 ms	72824 KB	Output is correct
59	Correct	69 ms	72832 KB	Output is correct
60	Correct	42 ms	72824 KB	Output is correct
61	Correct	71 ms	72884 KB	Output is correct
62	Correct	42 ms	72960 KB	Output is correct
63	Correct	70 ms	72920 KB	Output is correct
64	Correct	41 ms	72824 KB	Output is correct
65	Correct	46 ms	72824 KB	Output is correct
66	Correct	45 ms	72792 KB	Output is correct
67	Correct	45 ms	72824 KB	Output is correct
68	Correct	43 ms	72824 KB	Output is correct
69	Correct	47 ms	72956 KB	Output is correct
70	Correct	46 ms	72832 KB	Output is correct
71	Correct	44 ms	72824 KB	Output is correct
72	Correct	45 ms	72824 KB	Output is correct
73	Correct	43 ms	72824 KB	Output is correct
74	Correct	45 ms	72952 KB	Output is correct
75	Correct	43 ms	72824 KB	Output is correct
76	Correct	53 ms	72824 KB	Output is correct
77	Correct	45 ms	72824 KB	Output is correct
78	Correct	48 ms	72832 KB	Output is correct
79	Correct	44 ms	72832 KB	Output is correct
80	Correct	55 ms	72832 KB	Output is correct
81	Correct	42 ms	72824 KB	Output is correct
82	Correct	48 ms	72880 KB	Output is correct
83	Correct	45 ms	72828 KB	Output is correct
84	Correct	47 ms	72824 KB	Output is correct
85	Correct	45 ms	72824 KB	Output is correct
86	Correct	50 ms	72824 KB	Output is correct
87	Correct	46 ms	72824 KB	Output is correct
88	Correct	51 ms	72840 KB	Output is correct
89	Correct	47 ms	72824 KB	Output is correct
90	Correct	43 ms	72824 KB	Output is correct
91	Correct	53 ms	72824 KB	Output is correct
92	Correct	54 ms	72960 KB	Output is correct
93	Correct	45 ms	72824 KB	Output is correct

답안 #255085

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 10.0 / 10.0

Subtask #4 75.0 / 75.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
10.0 / 10.0

Subtask #4
75.0 / 75.0