#include <bits/stdc++.h>
using namespace std;
typedef long long llong;
const llong inf = 1e18;
int n, L;
int X[202], T[202];
llong dp[202][202][202];
int dist(int x, int y) {
int ret = abs(X[x] - X[y]);
return min(ret, L - ret);
}
llong get(int x, int y, int c) {
if (c < 0) return inf;
if (x < 0 || x > n + 1) return inf;
if (y < 0 || y > n + 1) return inf;
if (dp[c][x][y] != -1) return dp[c][x][y];
llong ret = inf;
int px = x;
if (x < y) --px; else ++px;
ret = min(ret, get(px, y, c) + dist(px, x));
ret = min(ret, get(y, px, c) + dist(y, x));
if (get(px, y, c - 1) + dist(px, x) <= T[x]) ret = min(ret, get(px, y, c - 1) + dist(px, x));
if (get(y, px, c - 1) + dist(y, x) <= T[x]) ret = min(ret, get(y, px, c - 1) + dist(y, x));
return dp[c][x][y] = ret;
}
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> n >> L;
for (int i = 1; i <= n; ++i) cin >> X[i]; X[n + 1] = L;
for (int i = 1; i <= n; ++i) cin >> T[i]; T[0] = T[n + 1] = -1;
memset(dp, -1, sizeof(dp));
dp[0][0][n + 1] = 0;
dp[0][n + 1][0] = 0;
for (int i = 1; i <= n; ++i) dp[i][0][n + 1] = dp[i][n + 1][0] = inf;
for (int ans = n; ans > 0; --ans) {
for (int i = 1; i <= n; ++i) {
if (get(i - 1, i, ans) < inf || get(i, i - 1, ans) < inf) {
printf("%d\n", ans);
return 0;
}
}
}
printf("0\n");
return 0;
}
Compilation message
ho_t3.cpp: In function 'int main()':
ho_t3.cpp:34:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
for (int i = 1; i <= n; ++i) cin >> X[i]; X[n + 1] = L;
^~~
ho_t3.cpp:34:47: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
for (int i = 1; i <= n; ++i) cin >> X[i]; X[n + 1] = L;
^
ho_t3.cpp:35:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
for (int i = 1; i <= n; ++i) cin >> T[i]; T[0] = T[n + 1] = -1;
^~~
ho_t3.cpp:35:47: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
for (int i = 1; i <= n; ++i) cin >> T[i]; T[0] = T[n + 1] = -1;
^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 2 |
Correct |
32 ms |
64896 KB |
Output is correct |
| 3 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 4 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 5 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 6 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 7 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 8 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 9 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 10 |
Correct |
36 ms |
64892 KB |
Output is correct |
| 11 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 12 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 13 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 14 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 15 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 16 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 17 |
Correct |
33 ms |
64888 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 2 |
Correct |
32 ms |
64896 KB |
Output is correct |
| 3 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 4 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 5 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 6 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 7 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 8 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 9 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 10 |
Correct |
36 ms |
64892 KB |
Output is correct |
| 11 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 12 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 13 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 14 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 15 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 16 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 17 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 18 |
Correct |
35 ms |
64864 KB |
Output is correct |
| 19 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 20 |
Correct |
38 ms |
64868 KB |
Output is correct |
| 21 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 22 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 23 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 24 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 25 |
Correct |
40 ms |
64888 KB |
Output is correct |
| 26 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 27 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 28 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 29 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 30 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 31 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 32 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 33 |
Correct |
38 ms |
64888 KB |
Output is correct |
| 34 |
Correct |
34 ms |
64888 KB |
Output is correct |
| 35 |
Correct |
33 ms |
64888 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 2 |
Correct |
32 ms |
64896 KB |
Output is correct |
| 3 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 4 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 5 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 6 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 7 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 8 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 9 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 10 |
Correct |
36 ms |
64892 KB |
Output is correct |
| 11 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 12 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 13 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 14 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 15 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 16 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 17 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 18 |
Correct |
259 ms |
65016 KB |
Output is correct |
| 19 |
Correct |
116 ms |
64888 KB |
Output is correct |
| 20 |
Correct |
65 ms |
64888 KB |
Output is correct |
| 21 |
Correct |
113 ms |
64888 KB |
Output is correct |
| 22 |
Correct |
145 ms |
64888 KB |
Output is correct |
| 23 |
Correct |
47 ms |
65016 KB |
Output is correct |
| 24 |
Correct |
66 ms |
64888 KB |
Output is correct |
| 25 |
Correct |
43 ms |
64888 KB |
Output is correct |
| 26 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 27 |
Correct |
44 ms |
64888 KB |
Output is correct |
| 28 |
Correct |
48 ms |
64916 KB |
Output is correct |
| 29 |
Correct |
57 ms |
64896 KB |
Output is correct |
| 30 |
Correct |
55 ms |
65016 KB |
Output is correct |
| 31 |
Correct |
66 ms |
64892 KB |
Output is correct |
| 32 |
Correct |
42 ms |
64896 KB |
Output is correct |
| 33 |
Correct |
58 ms |
64864 KB |
Output is correct |
| 34 |
Correct |
37 ms |
64896 KB |
Output is correct |
| 35 |
Correct |
66 ms |
64888 KB |
Output is correct |
| 36 |
Correct |
43 ms |
64888 KB |
Output is correct |
| 37 |
Correct |
66 ms |
64888 KB |
Output is correct |
| 38 |
Correct |
45 ms |
65016 KB |
Output is correct |
| 39 |
Correct |
71 ms |
64896 KB |
Output is correct |
| 40 |
Correct |
45 ms |
64888 KB |
Output is correct |
| 41 |
Correct |
257 ms |
64888 KB |
Output is correct |
| 42 |
Correct |
219 ms |
64908 KB |
Output is correct |
| 43 |
Correct |
238 ms |
64896 KB |
Output is correct |
| 44 |
Correct |
215 ms |
64888 KB |
Output is correct |
| 45 |
Correct |
253 ms |
65016 KB |
Output is correct |
| 46 |
Correct |
221 ms |
64892 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 2 |
Correct |
32 ms |
64896 KB |
Output is correct |
| 3 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 4 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 5 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 6 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 7 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 8 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 9 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 10 |
Correct |
36 ms |
64892 KB |
Output is correct |
| 11 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 12 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 13 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 14 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 15 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 16 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 17 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 18 |
Correct |
35 ms |
64864 KB |
Output is correct |
| 19 |
Correct |
36 ms |
64888 KB |
Output is correct |
| 20 |
Correct |
38 ms |
64868 KB |
Output is correct |
| 21 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 22 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 23 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 24 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 25 |
Correct |
40 ms |
64888 KB |
Output is correct |
| 26 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 27 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 28 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 29 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 30 |
Correct |
33 ms |
64896 KB |
Output is correct |
| 31 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 32 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 33 |
Correct |
38 ms |
64888 KB |
Output is correct |
| 34 |
Correct |
34 ms |
64888 KB |
Output is correct |
| 35 |
Correct |
33 ms |
64888 KB |
Output is correct |
| 36 |
Correct |
259 ms |
65016 KB |
Output is correct |
| 37 |
Correct |
116 ms |
64888 KB |
Output is correct |
| 38 |
Correct |
65 ms |
64888 KB |
Output is correct |
| 39 |
Correct |
113 ms |
64888 KB |
Output is correct |
| 40 |
Correct |
145 ms |
64888 KB |
Output is correct |
| 41 |
Correct |
47 ms |
65016 KB |
Output is correct |
| 42 |
Correct |
66 ms |
64888 KB |
Output is correct |
| 43 |
Correct |
43 ms |
64888 KB |
Output is correct |
| 44 |
Correct |
37 ms |
64888 KB |
Output is correct |
| 45 |
Correct |
44 ms |
64888 KB |
Output is correct |
| 46 |
Correct |
48 ms |
64916 KB |
Output is correct |
| 47 |
Correct |
57 ms |
64896 KB |
Output is correct |
| 48 |
Correct |
55 ms |
65016 KB |
Output is correct |
| 49 |
Correct |
66 ms |
64892 KB |
Output is correct |
| 50 |
Correct |
42 ms |
64896 KB |
Output is correct |
| 51 |
Correct |
58 ms |
64864 KB |
Output is correct |
| 52 |
Correct |
37 ms |
64896 KB |
Output is correct |
| 53 |
Correct |
66 ms |
64888 KB |
Output is correct |
| 54 |
Correct |
43 ms |
64888 KB |
Output is correct |
| 55 |
Correct |
66 ms |
64888 KB |
Output is correct |
| 56 |
Correct |
45 ms |
65016 KB |
Output is correct |
| 57 |
Correct |
71 ms |
64896 KB |
Output is correct |
| 58 |
Correct |
45 ms |
64888 KB |
Output is correct |
| 59 |
Correct |
257 ms |
64888 KB |
Output is correct |
| 60 |
Correct |
219 ms |
64908 KB |
Output is correct |
| 61 |
Correct |
238 ms |
64896 KB |
Output is correct |
| 62 |
Correct |
215 ms |
64888 KB |
Output is correct |
| 63 |
Correct |
253 ms |
65016 KB |
Output is correct |
| 64 |
Correct |
221 ms |
64892 KB |
Output is correct |
| 65 |
Correct |
286 ms |
64888 KB |
Output is correct |
| 66 |
Correct |
227 ms |
64888 KB |
Output is correct |
| 67 |
Correct |
218 ms |
64888 KB |
Output is correct |
| 68 |
Correct |
198 ms |
64888 KB |
Output is correct |
| 69 |
Correct |
243 ms |
64888 KB |
Output is correct |
| 70 |
Correct |
119 ms |
64888 KB |
Output is correct |
| 71 |
Correct |
262 ms |
65016 KB |
Output is correct |
| 72 |
Correct |
126 ms |
64888 KB |
Output is correct |
| 73 |
Correct |
237 ms |
64888 KB |
Output is correct |
| 74 |
Correct |
112 ms |
64888 KB |
Output is correct |
| 75 |
Correct |
275 ms |
64920 KB |
Output is correct |
| 76 |
Correct |
212 ms |
64888 KB |
Output is correct |
| 77 |
Correct |
323 ms |
64888 KB |
Output is correct |
| 78 |
Correct |
162 ms |
65016 KB |
Output is correct |
| 79 |
Correct |
212 ms |
64888 KB |
Output is correct |
| 80 |
Correct |
228 ms |
64888 KB |
Output is correct |
| 81 |
Correct |
239 ms |
64888 KB |
Output is correct |
| 82 |
Correct |
274 ms |
64888 KB |
Output is correct |
| 83 |
Correct |
443 ms |
65020 KB |
Output is correct |
| 84 |
Correct |
323 ms |
64888 KB |
Output is correct |
| 85 |
Correct |
261 ms |
64888 KB |
Output is correct |
| 86 |
Correct |
312 ms |
64892 KB |
Output is correct |
| 87 |
Correct |
268 ms |
65024 KB |
Output is correct |
| 88 |
Correct |
154 ms |
65016 KB |
Output is correct |
| 89 |
Correct |
270 ms |
64888 KB |
Output is correct |
| 90 |
Correct |
309 ms |
64888 KB |
Output is correct |
| 91 |
Correct |
148 ms |
64924 KB |
Output is correct |
| 92 |
Correct |
290 ms |
64896 KB |
Output is correct |
| 93 |
Correct |
412 ms |
65016 KB |
Output is correct |
