답안 #203432

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
203432	2020-02-20T15:45:40 Z	mraron	Collecting Stamps 3 (JOI20_ho_t3)	C++14	100 / 100	831 ms	127612 KB

ho_t3

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int n,L;
ll x[201], t[201];
ll dp[201][201][2][201];
int dist(int i, int j) {
	return min(abs(x[i]-x[j]), L-abs(x[i]-x[j]));
}
//mikor elég legkésőbb kezdeni
ll solve(int l, int r, int side, int cnt) {
	if(cnt==0) return 1LL<<60;
	if(l>r) {
		return -1LL<<60;
	}
	//cerr<<l<<" "<<r<<" "<<side<<" "<<cnt<<"\n";
	if(dp[l][r][side][cnt]!=-1) return dp[l][r][side][cnt];
	int akt;
	if(side==0) akt=l-1;
	else akt=r+1;
	ll ans=-1LL<<60;
	ans=max(ans, solve(l+1,r,0,cnt)-dist(l,akt));
	ans=max(ans, min(t[l],solve(l+1,r,0,cnt-1))-dist(l,akt));
	ans=max(ans, solve(l,r-1,1,cnt)-dist(r,akt));
	ans=max(ans, min(t[r], solve(l,r-1,1,cnt-1))-dist(r,akt));
	return dp[l][r][side][cnt]=ans;
}

int main() {
	cin>>n>>L;
	for(int i=0;i<n;++i) cin>>x[i];
	for(int i=0;i<n;++i) cin>>t[i];
	memset(dp,-1,sizeof dp);
	int ans=0;
	for(int i=0;i<=n;i++) {
		//cerr<<i<<": "<<solve(0,n-1,1,i)<<"\n";
		if(solve(0,n-1,1,i)>=0) ans=i;
	}
	cout<<ans<<"\n";
	return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	73 ms	127480 KB	Output is correct
2	Correct	72 ms	127480 KB	Output is correct
3	Correct	71 ms	127480 KB	Output is correct
4	Correct	72 ms	127480 KB	Output is correct
5	Correct	72 ms	127480 KB	Output is correct
6	Correct	77 ms	127480 KB	Output is correct
7	Correct	74 ms	127528 KB	Output is correct
8	Correct	71 ms	127480 KB	Output is correct
9	Correct	74 ms	127480 KB	Output is correct
10	Correct	73 ms	127352 KB	Output is correct
11	Correct	76 ms	127608 KB	Output is correct
12	Correct	71 ms	127480 KB	Output is correct
13	Correct	72 ms	127480 KB	Output is correct
14	Correct	70 ms	127480 KB	Output is correct
15	Correct	70 ms	127480 KB	Output is correct
16	Correct	72 ms	127480 KB	Output is correct
17	Correct	71 ms	127484 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	73 ms	127480 KB	Output is correct
2	Correct	72 ms	127480 KB	Output is correct
3	Correct	71 ms	127480 KB	Output is correct
4	Correct	72 ms	127480 KB	Output is correct
5	Correct	72 ms	127480 KB	Output is correct
6	Correct	77 ms	127480 KB	Output is correct
7	Correct	74 ms	127528 KB	Output is correct
8	Correct	71 ms	127480 KB	Output is correct
9	Correct	74 ms	127480 KB	Output is correct
10	Correct	73 ms	127352 KB	Output is correct
11	Correct	76 ms	127608 KB	Output is correct
12	Correct	71 ms	127480 KB	Output is correct
13	Correct	72 ms	127480 KB	Output is correct
14	Correct	70 ms	127480 KB	Output is correct
15	Correct	70 ms	127480 KB	Output is correct
16	Correct	72 ms	127480 KB	Output is correct
17	Correct	71 ms	127484 KB	Output is correct
18	Correct	74 ms	127480 KB	Output is correct
19	Correct	72 ms	127480 KB	Output is correct
20	Correct	72 ms	127480 KB	Output is correct
21	Correct	72 ms	127480 KB	Output is correct
22	Correct	74 ms	127480 KB	Output is correct
23	Correct	75 ms	127480 KB	Output is correct
24	Correct	74 ms	127480 KB	Output is correct
25	Correct	71 ms	127480 KB	Output is correct
26	Correct	72 ms	127480 KB	Output is correct
27	Correct	72 ms	127480 KB	Output is correct
28	Correct	73 ms	127480 KB	Output is correct
29	Correct	75 ms	127480 KB	Output is correct
30	Correct	73 ms	127480 KB	Output is correct
31	Correct	74 ms	127480 KB	Output is correct
32	Correct	73 ms	127480 KB	Output is correct
33	Correct	73 ms	127480 KB	Output is correct
34	Correct	73 ms	127480 KB	Output is correct
35	Correct	72 ms	127480 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	73 ms	127480 KB	Output is correct
2	Correct	72 ms	127480 KB	Output is correct
3	Correct	71 ms	127480 KB	Output is correct
4	Correct	72 ms	127480 KB	Output is correct
5	Correct	72 ms	127480 KB	Output is correct
6	Correct	77 ms	127480 KB	Output is correct
7	Correct	74 ms	127528 KB	Output is correct
8	Correct	71 ms	127480 KB	Output is correct
9	Correct	74 ms	127480 KB	Output is correct
10	Correct	73 ms	127352 KB	Output is correct
11	Correct	76 ms	127608 KB	Output is correct
12	Correct	71 ms	127480 KB	Output is correct
13	Correct	72 ms	127480 KB	Output is correct
14	Correct	70 ms	127480 KB	Output is correct
15	Correct	70 ms	127480 KB	Output is correct
16	Correct	72 ms	127480 KB	Output is correct
17	Correct	71 ms	127484 KB	Output is correct
18	Correct	427 ms	127608 KB	Output is correct
19	Correct	193 ms	127480 KB	Output is correct
20	Correct	136 ms	127480 KB	Output is correct
21	Correct	185 ms	127608 KB	Output is correct
22	Correct	242 ms	127556 KB	Output is correct
23	Correct	104 ms	127480 KB	Output is correct
24	Correct	95 ms	127480 KB	Output is correct
25	Correct	109 ms	127496 KB	Output is correct
26	Correct	79 ms	127612 KB	Output is correct
27	Correct	107 ms	127532 KB	Output is correct
28	Correct	94 ms	127480 KB	Output is correct
29	Correct	107 ms	127480 KB	Output is correct
30	Correct	104 ms	127608 KB	Output is correct
31	Correct	105 ms	127480 KB	Output is correct
32	Correct	89 ms	127480 KB	Output is correct
33	Correct	108 ms	127480 KB	Output is correct
34	Correct	77 ms	127492 KB	Output is correct
35	Correct	113 ms	127600 KB	Output is correct
36	Correct	84 ms	127480 KB	Output is correct
37	Correct	109 ms	127484 KB	Output is correct
38	Correct	87 ms	127480 KB	Output is correct
39	Correct	111 ms	127484 KB	Output is correct
40	Correct	91 ms	127608 KB	Output is correct
41	Correct	647 ms	127480 KB	Output is correct
42	Correct	292 ms	127480 KB	Output is correct
43	Correct	693 ms	127608 KB	Output is correct
44	Correct	269 ms	127480 KB	Output is correct
45	Correct	712 ms	127608 KB	Output is correct
46	Correct	282 ms	127480 KB	Output is correct

Subtask #4
75.0 / 75.0

#	결과	실행 시간	메모리	Grader output
1	Correct	73 ms	127480 KB	Output is correct
2	Correct	72 ms	127480 KB	Output is correct
3	Correct	71 ms	127480 KB	Output is correct
4	Correct	72 ms	127480 KB	Output is correct
5	Correct	72 ms	127480 KB	Output is correct
6	Correct	77 ms	127480 KB	Output is correct
7	Correct	74 ms	127528 KB	Output is correct
8	Correct	71 ms	127480 KB	Output is correct
9	Correct	74 ms	127480 KB	Output is correct
10	Correct	73 ms	127352 KB	Output is correct
11	Correct	76 ms	127608 KB	Output is correct
12	Correct	71 ms	127480 KB	Output is correct
13	Correct	72 ms	127480 KB	Output is correct
14	Correct	70 ms	127480 KB	Output is correct
15	Correct	70 ms	127480 KB	Output is correct
16	Correct	72 ms	127480 KB	Output is correct
17	Correct	71 ms	127484 KB	Output is correct
18	Correct	74 ms	127480 KB	Output is correct
19	Correct	72 ms	127480 KB	Output is correct
20	Correct	72 ms	127480 KB	Output is correct
21	Correct	72 ms	127480 KB	Output is correct
22	Correct	74 ms	127480 KB	Output is correct
23	Correct	75 ms	127480 KB	Output is correct
24	Correct	74 ms	127480 KB	Output is correct
25	Correct	71 ms	127480 KB	Output is correct
26	Correct	72 ms	127480 KB	Output is correct
27	Correct	72 ms	127480 KB	Output is correct
28	Correct	73 ms	127480 KB	Output is correct
29	Correct	75 ms	127480 KB	Output is correct
30	Correct	73 ms	127480 KB	Output is correct
31	Correct	74 ms	127480 KB	Output is correct
32	Correct	73 ms	127480 KB	Output is correct
33	Correct	73 ms	127480 KB	Output is correct
34	Correct	73 ms	127480 KB	Output is correct
35	Correct	72 ms	127480 KB	Output is correct
36	Correct	427 ms	127608 KB	Output is correct
37	Correct	193 ms	127480 KB	Output is correct
38	Correct	136 ms	127480 KB	Output is correct
39	Correct	185 ms	127608 KB	Output is correct
40	Correct	242 ms	127556 KB	Output is correct
41	Correct	104 ms	127480 KB	Output is correct
42	Correct	95 ms	127480 KB	Output is correct
43	Correct	109 ms	127496 KB	Output is correct
44	Correct	79 ms	127612 KB	Output is correct
45	Correct	107 ms	127532 KB	Output is correct
46	Correct	94 ms	127480 KB	Output is correct
47	Correct	107 ms	127480 KB	Output is correct
48	Correct	104 ms	127608 KB	Output is correct
49	Correct	105 ms	127480 KB	Output is correct
50	Correct	89 ms	127480 KB	Output is correct
51	Correct	108 ms	127480 KB	Output is correct
52	Correct	77 ms	127492 KB	Output is correct
53	Correct	113 ms	127600 KB	Output is correct
54	Correct	84 ms	127480 KB	Output is correct
55	Correct	109 ms	127484 KB	Output is correct
56	Correct	87 ms	127480 KB	Output is correct
57	Correct	111 ms	127484 KB	Output is correct
58	Correct	91 ms	127608 KB	Output is correct
59	Correct	647 ms	127480 KB	Output is correct
60	Correct	292 ms	127480 KB	Output is correct
61	Correct	693 ms	127608 KB	Output is correct
62	Correct	269 ms	127480 KB	Output is correct
63	Correct	712 ms	127608 KB	Output is correct
64	Correct	282 ms	127480 KB	Output is correct
65	Correct	536 ms	127608 KB	Output is correct
66	Correct	402 ms	127480 KB	Output is correct
67	Correct	397 ms	127608 KB	Output is correct
68	Correct	314 ms	127480 KB	Output is correct
69	Correct	562 ms	127508 KB	Output is correct
70	Correct	489 ms	127608 KB	Output is correct
71	Correct	484 ms	127480 KB	Output is correct
72	Correct	491 ms	127608 KB	Output is correct
73	Correct	410 ms	127480 KB	Output is correct
74	Correct	376 ms	127504 KB	Output is correct
75	Correct	416 ms	127480 KB	Output is correct
76	Correct	643 ms	127608 KB	Output is correct
77	Correct	660 ms	127608 KB	Output is correct
78	Correct	344 ms	127480 KB	Output is correct
79	Correct	403 ms	127608 KB	Output is correct
80	Correct	606 ms	127480 KB	Output is correct
81	Correct	406 ms	127480 KB	Output is correct
82	Correct	429 ms	127612 KB	Output is correct
83	Correct	646 ms	127480 KB	Output is correct
84	Correct	499 ms	127512 KB	Output is correct
85	Correct	623 ms	127608 KB	Output is correct
86	Correct	568 ms	127480 KB	Output is correct
87	Correct	450 ms	127608 KB	Output is correct
88	Correct	720 ms	127608 KB	Output is correct
89	Correct	735 ms	127608 KB	Output is correct
90	Correct	428 ms	127484 KB	Output is correct
91	Correct	730 ms	127608 KB	Output is correct
92	Correct	831 ms	127608 KB	Output is correct
93	Correct	711 ms	127608 KB	Output is correct

답안 #203432

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