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Submission #208955

# Submission time Handle Problem Language Result Execution time Memory
208955 2020-03-12T18:19:18 Z AQT Collecting Stamps 3 (JOI20_ho_t3) C++14
100 / 100
 217 ms 67320 KB 
#include <bits/stdc++.h>

using namespace std;

int N, L;
long long dp[2][205][205][205];
//bool vis[2][205][205][205];
long long arr[205], brr[205];

void relax(int cw,int ccw, int k){
	long long d = dp[0][cw][ccw][k]+arr[cw+1]-arr[cw];
	bool kk = (d <= brr[cw+1]);
	assert(d >= 0);
	dp[0][cw+1][ccw][k+kk] = min(dp[0][cw+1][ccw][k+kk], d);
	d = dp[1][cw][ccw][k] + L-arr[ccw] + arr[cw+1];
	kk = (d <= brr[cw+1]);
	assert(d >= 0);
	dp[0][cw+1][ccw][k+kk] = min(dp[0][cw+1][ccw][k+kk], d);
	d = dp[0][cw][ccw][k] + arr[cw] + L-arr[ccw-1];
	kk = (d <= brr[ccw-1]);
	assert(d >= 0);
	dp[1][cw][ccw-1][k+kk] = min(dp[1][cw][ccw-1][k+kk], d);
	d = dp[1][cw][ccw][k] + arr[ccw] - arr[ccw-1];
	kk = (d <= brr[ccw-1]);
	assert(d >= 0);
	dp[1][cw][ccw-1][k+kk] = min(dp[1][cw][ccw-1][k+kk], d);
}

int main(){
	cin.sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> N >> L;
	for(int i = 1; i<=N; i++){
		cin >> arr[i];
	}
	for(int i = 1; i<=N; i++){
		cin >> brr[i];
	}
	for(int cw = 0; cw<=N; cw++){
		for(int ccw = N+1; ccw>cw; ccw--){
			for(int k = 0; k<=N; k++){
				dp[0][cw][ccw][k] = dp[1][cw][ccw][k] = LLONG_MAX/4;
			}
		}
	}
	dp[0][0][N+1][0] = 0; //sd = 0 means cw
	arr[N+1] = L;
	for(int cw = 0; cw<=N; cw++){
		for(int ccw = N+1; ccw>cw+1; ccw--){
			for(int k = 0; k<=N; k++){
				relax(cw, ccw, k);
			}
		}
	}
	int ans = 0;
	for(int k = 0; k<=N; k++){
		for(int cw = 0; cw<=N; cw++){
			for(int ccw = N+1; ccw>cw; ccw--){
				if(dp[0][cw][ccw][k] != LLONG_MAX/4){
					ans = max(ans, k);
				}
				if(dp[1][cw][ccw][k] != LLONG_MAX/4){
					ans = max(ans, k);
				}
			}
		}
	}
	cout << ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 636 KB Output is correct
4 Correct 5 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 5 ms 760 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 5 ms 632 KB Output is correct
9 Correct 5 ms 760 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 760 KB Output is correct
13 Correct 5 ms 760 KB Output is correct
14 Correct 5 ms 504 KB Output is correct
15 Correct 5 ms 504 KB Output is correct
16 Correct 5 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 636 KB Output is correct
4 Correct 5 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 5 ms 760 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 5 ms 632 KB Output is correct
9 Correct 5 ms 760 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 760 KB Output is correct
13 Correct 5 ms 760 KB Output is correct
14 Correct 5 ms 504 KB Output is correct
15 Correct 5 ms 504 KB Output is correct
16 Correct 5 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 5 ms 760 KB Output is correct
19 Correct 5 ms 632 KB Output is correct
20 Correct 5 ms 760 KB Output is correct
21 Correct 5 ms 760 KB Output is correct
22 Correct 5 ms 632 KB Output is correct
23 Correct 5 ms 888 KB Output is correct
24 Correct 5 ms 764 KB Output is correct
25 Correct 5 ms 764 KB Output is correct
26 Correct 5 ms 940 KB Output is correct
27 Correct 5 ms 504 KB Output is correct
28 Correct 5 ms 632 KB Output is correct
29 Correct 5 ms 888 KB Output is correct
30 Correct 5 ms 888 KB Output is correct
31 Correct 5 ms 888 KB Output is correct
32 Correct 5 ms 764 KB Output is correct
33 Correct 5 ms 888 KB Output is correct
34 Correct 5 ms 892 KB Output is correct
35 Correct 5 ms 888 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 636 KB Output is correct
4 Correct 5 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 5 ms 760 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 5 ms 632 KB Output is correct
9 Correct 5 ms 760 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 760 KB Output is correct
13 Correct 5 ms 760 KB Output is correct
14 Correct 5 ms 504 KB Output is correct
15 Correct 5 ms 504 KB Output is correct
16 Correct 5 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 153 ms 54136 KB Output is correct
19 Correct 77 ms 33144 KB Output is correct
20 Correct 36 ms 17912 KB Output is correct
21 Correct 75 ms 31352 KB Output is correct
22 Correct 102 ms 40312 KB Output is correct
23 Correct 30 ms 15224 KB Output is correct
24 Correct 22 ms 12152 KB Output is correct
25 Correct 29 ms 15096 KB Output is correct
26 Correct 11 ms 6008 KB Output is correct
27 Correct 30 ms 15608 KB Output is correct
28 Correct 22 ms 11256 KB Output is correct
29 Correct 30 ms 15992 KB Output is correct
30 Correct 24 ms 12664 KB Output is correct
31 Correct 29 ms 15096 KB Output is correct
32 Correct 15 ms 8056 KB Output is correct
33 Correct 29 ms 15096 KB Output is correct
34 Correct 10 ms 5628 KB Output is correct
35 Correct 28 ms 14712 KB Output is correct
36 Correct 13 ms 7288 KB Output is correct
37 Correct 30 ms 15608 KB Output is correct
38 Correct 16 ms 8824 KB Output is correct
39 Correct 32 ms 16248 KB Output is correct
40 Correct 18 ms 9720 KB Output is correct
41 Correct 205 ms 66552 KB Output is correct
42 Correct 118 ms 45048 KB Output is correct
43 Correct 206 ms 66552 KB Output is correct
44 Correct 115 ms 44536 KB Output is correct
45 Correct 200 ms 66552 KB Output is correct
46 Correct 118 ms 45180 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 636 KB Output is correct
4 Correct 5 ms 504 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 5 ms 760 KB Output is correct
7 Correct 5 ms 504 KB Output is correct
8 Correct 5 ms 632 KB Output is correct
9 Correct 5 ms 760 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 760 KB Output is correct
13 Correct 5 ms 760 KB Output is correct
14 Correct 5 ms 504 KB Output is correct
15 Correct 5 ms 504 KB Output is correct
16 Correct 5 ms 760 KB Output is correct
17 Correct 5 ms 760 KB Output is correct
18 Correct 5 ms 760 KB Output is correct
19 Correct 5 ms 632 KB Output is correct
20 Correct 5 ms 760 KB Output is correct
21 Correct 5 ms 760 KB Output is correct
22 Correct 5 ms 632 KB Output is correct
23 Correct 5 ms 888 KB Output is correct
24 Correct 5 ms 764 KB Output is correct
25 Correct 5 ms 764 KB Output is correct
26 Correct 5 ms 940 KB Output is correct
27 Correct 5 ms 504 KB Output is correct
28 Correct 5 ms 632 KB Output is correct
29 Correct 5 ms 888 KB Output is correct
30 Correct 5 ms 888 KB Output is correct
31 Correct 5 ms 888 KB Output is correct
32 Correct 5 ms 764 KB Output is correct
33 Correct 5 ms 888 KB Output is correct
34 Correct 5 ms 892 KB Output is correct
35 Correct 5 ms 888 KB Output is correct
36 Correct 153 ms 54136 KB Output is correct
37 Correct 77 ms 33144 KB Output is correct
38 Correct 36 ms 17912 KB Output is correct
39 Correct 75 ms 31352 KB Output is correct
40 Correct 102 ms 40312 KB Output is correct
41 Correct 30 ms 15224 KB Output is correct
42 Correct 22 ms 12152 KB Output is correct
43 Correct 29 ms 15096 KB Output is correct
44 Correct 11 ms 6008 KB Output is correct
45 Correct 30 ms 15608 KB Output is correct
46 Correct 22 ms 11256 KB Output is correct
47 Correct 30 ms 15992 KB Output is correct
48 Correct 24 ms 12664 KB Output is correct
49 Correct 29 ms 15096 KB Output is correct
50 Correct 15 ms 8056 KB Output is correct
51 Correct 29 ms 15096 KB Output is correct
52 Correct 10 ms 5628 KB Output is correct
53 Correct 28 ms 14712 KB Output is correct
54 Correct 13 ms 7288 KB Output is correct
55 Correct 30 ms 15608 KB Output is correct
56 Correct 16 ms 8824 KB Output is correct
57 Correct 32 ms 16248 KB Output is correct
58 Correct 18 ms 9720 KB Output is correct
59 Correct 205 ms 66552 KB Output is correct
60 Correct 118 ms 45048 KB Output is correct
61 Correct 206 ms 66552 KB Output is correct
62 Correct 115 ms 44536 KB Output is correct
63 Correct 200 ms 66552 KB Output is correct
64 Correct 118 ms 45180 KB Output is correct
65 Correct 180 ms 60152 KB Output is correct
66 Correct 152 ms 55416 KB Output is correct
67 Correct 141 ms 52984 KB Output is correct
68 Correct 134 ms 48888 KB Output is correct
69 Correct 177 ms 59640 KB Output is correct
70 Correct 165 ms 57080 KB Output is correct
71 Correct 168 ms 57720 KB Output is correct
72 Correct 173 ms 58488 KB Output is correct
73 Correct 153 ms 54136 KB Output is correct
74 Correct 136 ms 50680 KB Output is correct
75 Correct 159 ms 55928 KB Output is correct
76 Correct 198 ms 64120 KB Output is correct
77 Correct 194 ms 64120 KB Output is correct
78 Correct 135 ms 49528 KB Output is correct
79 Correct 140 ms 51192 KB Output is correct
80 Correct 188 ms 62712 KB Output is correct
81 Correct 144 ms 51912 KB Output is correct
82 Correct 155 ms 54648 KB Output is correct
83 Correct 211 ms 66612 KB Output is correct
84 Correct 168 ms 57208 KB Output is correct
85 Correct 178 ms 62072 KB Output is correct
86 Correct 181 ms 60920 KB Output is correct
87 Correct 161 ms 55804 KB Output is correct
88 Correct 206 ms 67192 KB Output is correct
89 Correct 217 ms 67320 KB Output is correct
90 Correct 161 ms 56568 KB Output is correct
91 Correct 206 ms 67192 KB Output is correct
92 Correct 209 ms 67192 KB Output is correct
93 Correct 203 ms 65912 KB Output is correct