Submission #362294

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
362294	2021-02-02T14:26:33 Z	Aryan_Raina	Collecting Stamps 3 (JOI20_ho_t3)	C++14	100 / 100	147 ms	132972 KB

ho_t3

#include <bits/stdc++.h>
using namespace std;

#define pos first
#define tim second
#define int long long int

const int INF = 1e18;
int32_t main() {
	int n, l;
	cin>>n>>l;
	vector<pair<int,int>> stamps(n+2);
	stamps[0] = {0,INF};
	for (int i = 1; i<=n; i++) cin>>stamps[i].pos;
	for (int i = 1; i<=n; i++) cin>>stamps[i].tim;
	stamps[n+1] = {l, INF};
	int ldp[n+5][n+5][n+5], rdp[n+5][n+5][n+5];
	// whenever we move if we are moving optimally we will cover a range L, R (taking some stamps)
	// ldp[L][R][i] - min time when covered L to R and we are at left end and taken i stamps
	// rdp[L][R][i] - same but we are at right end
	for (int i = 0; i <= n+1; i++) for (int j = 0; j <= n+1; j++) for (int k = 0; k <= n; k++) ldp[i][j][k] = rdp[i][j][k] = INF;
	ldp[0][n+1][0] = rdp[0][n+1][0] = 0; 

	for (int L = 0; L <= n; L++) {
		for (int R = n+1; R >= L+2; R--) {
			for (int k = 0; k <= n; k++) {
				// go L to L+1, go from R to L+1
				int tl = min(ldp[L][R][k]+stamps[L+1].pos-stamps[L].pos, rdp[L][R][k]+(l-stamps[R].pos)+stamps[L+1].pos);
				// go L to R-1, go from R to R-1
				int tr = min(ldp[L][R][k]+(l-stamps[R-1].pos)+stamps[L].pos, rdp[L][R][k]+stamps[R].pos-stamps[R-1].pos);
				// will we be able to take R-1 or L+1 stamp? check and update
				ldp[L+1][R][k+(tl<=stamps[L+1].tim)] = min(ldp[L+1][R][k+(tl<=stamps[L+1].tim)], tl);
				rdp[L][R-1][k+(tr<=stamps[R-1].tim)] = min(rdp[L][R-1][k+(tr<=stamps[R-1].tim)], tr);
			}
		}
	}

	int ans = 0;
	for (int i = 0; i <= n+1; i++) {
		for (int j = 0; j <= n+1; j++) {
			for (int k = 0; k <= n; k++) {
				if (ldp[i][j][k] != INF || rdp[i][j][k] != INF) ans = max(ans, k);
			}
		}
	}
	cout<<ans;
}

Subtask #1
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	0 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	0 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	512 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	364 KB	Output is correct
32	Correct	1 ms	364 KB	Output is correct
33	Correct	1 ms	364 KB	Output is correct
34	Correct	1 ms	364 KB	Output is correct
35	Correct	1 ms	364 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	0 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	104 ms	96060 KB	Output is correct
19	Correct	55 ms	46080 KB	Output is correct
20	Correct	20 ms	18412 KB	Output is correct
21	Correct	47 ms	42476 KB	Output is correct
22	Correct	68 ms	62060 KB	Output is correct
23	Correct	16 ms	14572 KB	Output is correct
24	Correct	11 ms	10220 KB	Output is correct
25	Correct	18 ms	14188 KB	Output is correct
26	Correct	5 ms	3692 KB	Output is correct
27	Correct	20 ms	15084 KB	Output is correct
28	Correct	13 ms	9324 KB	Output is correct
29	Correct	19 ms	15468 KB	Output is correct
30	Correct	12 ms	10988 KB	Output is correct
31	Correct	16 ms	14188 KB	Output is correct
32	Correct	7 ms	5740 KB	Output is correct
33	Correct	16 ms	14188 KB	Output is correct
34	Correct	4 ms	3308 KB	Output is correct
35	Correct	16 ms	13676 KB	Output is correct
36	Correct	5 ms	4844 KB	Output is correct
37	Correct	17 ms	15084 KB	Output is correct
38	Correct	8 ms	6380 KB	Output is correct
39	Correct	18 ms	15980 KB	Output is correct
40	Correct	8 ms	7404 KB	Output is correct
41	Correct	140 ms	131056 KB	Output is correct
42	Correct	77 ms	73196 KB	Output is correct
43	Correct	139 ms	130924 KB	Output is correct
44	Correct	76 ms	71916 KB	Output is correct
45	Correct	140 ms	131116 KB	Output is correct
46	Correct	80 ms	73196 KB	Output is correct

Subtask #4
75.0 / 75.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	0 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	512 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	364 KB	Output is correct
32	Correct	1 ms	364 KB	Output is correct
33	Correct	1 ms	364 KB	Output is correct
34	Correct	1 ms	364 KB	Output is correct
35	Correct	1 ms	364 KB	Output is correct
36	Correct	104 ms	96060 KB	Output is correct
37	Correct	55 ms	46080 KB	Output is correct
38	Correct	20 ms	18412 KB	Output is correct
39	Correct	47 ms	42476 KB	Output is correct
40	Correct	68 ms	62060 KB	Output is correct
41	Correct	16 ms	14572 KB	Output is correct
42	Correct	11 ms	10220 KB	Output is correct
43	Correct	18 ms	14188 KB	Output is correct
44	Correct	5 ms	3692 KB	Output is correct
45	Correct	20 ms	15084 KB	Output is correct
46	Correct	13 ms	9324 KB	Output is correct
47	Correct	19 ms	15468 KB	Output is correct
48	Correct	12 ms	10988 KB	Output is correct
49	Correct	16 ms	14188 KB	Output is correct
50	Correct	7 ms	5740 KB	Output is correct
51	Correct	16 ms	14188 KB	Output is correct
52	Correct	4 ms	3308 KB	Output is correct
53	Correct	16 ms	13676 KB	Output is correct
54	Correct	5 ms	4844 KB	Output is correct
55	Correct	17 ms	15084 KB	Output is correct
56	Correct	8 ms	6380 KB	Output is correct
57	Correct	18 ms	15980 KB	Output is correct
58	Correct	8 ms	7404 KB	Output is correct
59	Correct	140 ms	131056 KB	Output is correct
60	Correct	77 ms	73196 KB	Output is correct
61	Correct	139 ms	130924 KB	Output is correct
62	Correct	76 ms	71916 KB	Output is correct
63	Correct	140 ms	131116 KB	Output is correct
64	Correct	80 ms	73196 KB	Output is correct
65	Correct	123 ms	112688 KB	Output is correct
66	Correct	106 ms	99308 KB	Output is correct
67	Correct	100 ms	93036 KB	Output is correct
68	Correct	90 ms	82796 KB	Output is correct
69	Correct	121 ms	110956 KB	Output is correct
70	Correct	117 ms	104172 KB	Output is correct
71	Correct	110 ms	105964 KB	Output is correct
72	Correct	114 ms	107500 KB	Output is correct
73	Correct	104 ms	96108 KB	Output is correct
74	Correct	99 ms	87148 KB	Output is correct
75	Correct	112 ms	101100 KB	Output is correct
76	Correct	133 ms	123404 KB	Output is correct
77	Correct	136 ms	123348 KB	Output is correct
78	Correct	104 ms	84204 KB	Output is correct
79	Correct	95 ms	88556 KB	Output is correct
80	Correct	130 ms	119788 KB	Output is correct
81	Correct	96 ms	89964 KB	Output is correct
82	Correct	117 ms	97644 KB	Output is correct
83	Correct	138 ms	130924 KB	Output is correct
84	Correct	112 ms	104172 KB	Output is correct
85	Correct	124 ms	117996 KB	Output is correct
86	Correct	123 ms	114412 KB	Output is correct
87	Correct	108 ms	100844 KB	Output is correct
88	Correct	141 ms	132844 KB	Output is correct
89	Correct	141 ms	132972 KB	Output is correct
90	Correct	108 ms	102508 KB	Output is correct
91	Correct	144 ms	132972 KB	Output is correct
92	Correct	147 ms	132844 KB	Output is correct
93	Correct	138 ms	129004 KB	Output is correct

Submission #362294

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