oj.uz

Submission #861017

# Submission time Handle Problem Language Result Execution time Memory
861017 2023-10-15T06:49:05 Z phoenix0423 Collecting Stamps 3 (JOI20_ho_t3) C++17
100 / 100
 30 ms 67028 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#pragma GCC optimize("Ofast")
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define lowbit(x) x&-x
#define ckmin(a, b) a = min(a, b)
#define ckmax(a, b) a = max(a, b)
const int maxn = 4e5 + 5;
const int INF = 1e9 + 7;
int dp[205][205][2][205]; // 0 = l, 1 = r
int x[205], t[205];

int main(void){
	fastio;
	int n, l;
	cin>>n>>l;
	for(int i = 1; i <= n; i++) cin>>x[i];
	for(int i = 1; i <= n; i++) cin>>t[i];
	for(int i = 0; i <= n + 1; i++) for(int j = 0; j <= n + 1; j++) for(int d = 0; d < 2; d++) for(int k = 0; k <= n; k++) dp[i][j][d][k] = INF;
	dp[1][n + 1][0][(x[1] <= t[1])] = x[1];
	dp[0][n][1][(l - x[n] <= t[n])] = l - x[n];
	x[0] = x[n] - l, x[n + 1] = x[1] + l;
	for(int len = 1; len <= n; len++){
		for(int i = 0; i <= len; i++){
			int j = n + 1 - (len - i);
			for(int cnt = 0; cnt <= len; cnt++){
				int t1 = dp[i][j][0][cnt], t2 = dp[i][j][1][cnt];
				ckmin(dp[i + 1][j][0][cnt + (t1 + (x[i + 1] - x[i]) <= t[i + 1])], t1 + (x[i + 1] - x[i]));
				ckmin(dp[i + 1][j][0][cnt + (t2 + (l - x[j] + x[i + 1]) <= t[i + 1])], t2 + (l - x[j] + x[i + 1]));
				ckmin(dp[i][j - 1][1][cnt + (t1 + (x[i] + l - x[j - 1]) <= t[j - 1])], t1 + (x[i] + l - x[j - 1]));
				ckmin(dp[i][j - 1][1][cnt + (t2 + (x[j] - x[j - 1]) <= t[j - 1])], t2 + (x[j] - x[j - 1]));
			}
		}
	}
	int ans = 0;
	for(int i = 0; i <= n; i++){
		for(int d = 0; d < 2; d++){
			for(int cnt = 1; cnt <= n; cnt++){
				if(dp[i][i + 1][d][cnt] < INF) ans = max(ans, cnt);
			}
		}
	}
	cout<<ans<<"\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 4564 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6604 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 6632 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 4564 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6604 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 6632 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 1 ms 6492 KB Output is correct
25 Correct 1 ms 6492 KB Output is correct
26 Correct 1 ms 6492 KB Output is correct
27 Correct 1 ms 4440 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 6492 KB Output is correct
31 Correct 1 ms 6608 KB Output is correct
32 Correct 1 ms 6492 KB Output is correct
33 Correct 1 ms 6488 KB Output is correct
34 Correct 1 ms 6492 KB Output is correct
35 Correct 1 ms 6492 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 4564 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6604 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 6632 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 21 ms 60036 KB Output is correct
19 Correct 12 ms 47708 KB Output is correct
20 Correct 7 ms 35508 KB Output is correct
21 Correct 12 ms 45660 KB Output is correct
22 Correct 15 ms 51804 KB Output is correct
23 Correct 7 ms 33368 KB Output is correct
24 Correct 5 ms 29276 KB Output is correct
25 Correct 6 ms 31324 KB Output is correct
26 Correct 3 ms 20828 KB Output is correct
27 Correct 6 ms 33372 KB Output is correct
28 Correct 4 ms 27228 KB Output is correct
29 Correct 6 ms 33372 KB Output is correct
30 Correct 5 ms 29276 KB Output is correct
31 Correct 6 ms 31324 KB Output is correct
32 Correct 4 ms 23128 KB Output is correct
33 Correct 7 ms 31324 KB Output is correct
34 Correct 3 ms 18992 KB Output is correct
35 Correct 5 ms 31324 KB Output is correct
36 Correct 3 ms 23128 KB Output is correct
37 Correct 6 ms 33372 KB Output is correct
38 Correct 4 ms 25180 KB Output is correct
39 Correct 6 ms 33372 KB Output is correct
40 Correct 5 ms 25180 KB Output is correct
41 Correct 30 ms 66536 KB Output is correct
42 Correct 17 ms 56048 KB Output is correct
43 Correct 26 ms 66396 KB Output is correct
44 Correct 18 ms 56048 KB Output is correct
45 Correct 26 ms 66396 KB Output is correct
46 Correct 17 ms 56048 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 4564 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 6488 KB Output is correct
13 Correct 1 ms 6604 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 6632 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 6492 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 6492 KB Output is correct
24 Correct 1 ms 6492 KB Output is correct
25 Correct 1 ms 6492 KB Output is correct
26 Correct 1 ms 6492 KB Output is correct
27 Correct 1 ms 4440 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 6492 KB Output is correct
30 Correct 1 ms 6492 KB Output is correct
31 Correct 1 ms 6608 KB Output is correct
32 Correct 1 ms 6492 KB Output is correct
33 Correct 1 ms 6488 KB Output is correct
34 Correct 1 ms 6492 KB Output is correct
35 Correct 1 ms 6492 KB Output is correct
36 Correct 21 ms 60036 KB Output is correct
37 Correct 12 ms 47708 KB Output is correct
38 Correct 7 ms 35508 KB Output is correct
39 Correct 12 ms 45660 KB Output is correct
40 Correct 15 ms 51804 KB Output is correct
41 Correct 7 ms 33368 KB Output is correct
42 Correct 5 ms 29276 KB Output is correct
43 Correct 6 ms 31324 KB Output is correct
44 Correct 3 ms 20828 KB Output is correct
45 Correct 6 ms 33372 KB Output is correct
46 Correct 4 ms 27228 KB Output is correct
47 Correct 6 ms 33372 KB Output is correct
48 Correct 5 ms 29276 KB Output is correct
49 Correct 6 ms 31324 KB Output is correct
50 Correct 4 ms 23128 KB Output is correct
51 Correct 7 ms 31324 KB Output is correct
52 Correct 3 ms 18992 KB Output is correct
53 Correct 5 ms 31324 KB Output is correct
54 Correct 3 ms 23128 KB Output is correct
55 Correct 6 ms 33372 KB Output is correct
56 Correct 4 ms 25180 KB Output is correct
57 Correct 6 ms 33372 KB Output is correct
58 Correct 5 ms 25180 KB Output is correct
59 Correct 30 ms 66536 KB Output is correct
60 Correct 17 ms 56048 KB Output is correct
61 Correct 26 ms 66396 KB Output is correct
62 Correct 18 ms 56048 KB Output is correct
63 Correct 26 ms 66396 KB Output is correct
64 Correct 17 ms 56048 KB Output is correct
65 Correct 23 ms 64192 KB Output is correct
66 Correct 22 ms 62044 KB Output is correct
67 Correct 22 ms 60132 KB Output is correct
68 Correct 19 ms 58104 KB Output is correct
69 Correct 26 ms 64092 KB Output is correct
70 Correct 22 ms 62044 KB Output is correct
71 Correct 23 ms 62044 KB Output is correct
72 Correct 26 ms 64252 KB Output is correct
73 Correct 21 ms 59992 KB Output is correct
74 Correct 22 ms 57948 KB Output is correct
75 Correct 22 ms 62044 KB Output is correct
76 Correct 25 ms 66140 KB Output is correct
77 Correct 27 ms 66212 KB Output is correct
78 Correct 19 ms 57948 KB Output is correct
79 Correct 20 ms 59996 KB Output is correct
80 Correct 24 ms 66140 KB Output is correct
81 Correct 22 ms 60252 KB Output is correct
82 Correct 21 ms 62044 KB Output is correct
83 Correct 27 ms 66396 KB Output is correct
84 Correct 22 ms 62184 KB Output is correct
85 Correct 24 ms 66312 KB Output is correct
86 Correct 23 ms 64088 KB Output is correct
87 Correct 22 ms 62044 KB Output is correct
88 Correct 27 ms 66652 KB Output is correct
89 Correct 29 ms 67028 KB Output is correct
90 Correct 22 ms 62040 KB Output is correct
91 Correct 26 ms 66904 KB Output is correct
92 Correct 29 ms 66908 KB Output is correct
93 Correct 26 ms 66392 KB Output is correct