#include <stdio.h>
#include <string.h>
#define N 300
#define INF 0x3f3f3f3f
int abs_(int a) { return a > 0 ? a : -a; }
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
int main() {
static int aa[N], dp[N][N * 2];
static int tt[N][N];
int n, i, j, k, t;
long long ans;
scanf("%d", &n);
for (i = 0; i < n; i++)
scanf("%d", &aa[i]);
for (i = 0; i < n; i++)
for (j = i + 1; j < n; j++)
if (aa[i] != -1 && aa[j] != -1) {
tt[i][j] = INF;
for (k = 0; k < n; k++)
if (aa[k] == -1)
tt[i][j] = min(tt[i][j], abs_(i - k) + abs_(k - j));
}
for (i = 0; i < n; i++)
memset(dp[i], -1, n * 2 * sizeof *dp[i]);
ans = 0;
for (i = 0; i < n; i++)
if (aa[i] == 1) {
dp[i][i] = max(dp[i][i], 1);
for (t = 0; t <= i * 2; t++) {
int x = dp[i][t];
if (x == -1)
continue;
ans = max(ans, x);
for (j = i + 1; j < n; j++)
if (aa[j] == 1) {
int t_ = t + tt[i][j];
if (t_ <= j * 2)
dp[j][t_] = max(dp[j][t_], dp[i][t] + 1);
}
}
}
ans = -ans;
for (i = 0; i < n; i++)
if (aa[i] > 0)
ans += aa[i];
printf("%lld\n", ans);
return 0;
}
Compilation message
tortoise.c: In function 'main':
tortoise.c:17:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
17 | scanf("%d", &n);
| ^~~~~~~~~~~~~~~
tortoise.c:19:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
19 | scanf("%d", &aa[i]);
| ^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
280 KB |
Output is correct |
| 3 |
Correct |
0 ms |
284 KB |
Output is correct |
| 4 |
Correct |
1 ms |
324 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
332 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
280 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
280 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
268 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
272 KB |
Output is correct |
| 23 |
Correct |
0 ms |
272 KB |
Output is correct |
| 24 |
Correct |
0 ms |
332 KB |
Output is correct |
| 25 |
Correct |
0 ms |
332 KB |
Output is correct |
| 26 |
Correct |
0 ms |
280 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
280 KB |
Output is correct |
| 3 |
Correct |
0 ms |
284 KB |
Output is correct |
| 4 |
Correct |
1 ms |
324 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
332 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
280 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
280 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
268 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
272 KB |
Output is correct |
| 23 |
Correct |
0 ms |
272 KB |
Output is correct |
| 24 |
Correct |
0 ms |
332 KB |
Output is correct |
| 25 |
Correct |
0 ms |
332 KB |
Output is correct |
| 26 |
Correct |
0 ms |
280 KB |
Output is correct |
| 27 |
Correct |
12 ms |
1100 KB |
Output is correct |
| 28 |
Correct |
16 ms |
1316 KB |
Output is correct |
| 29 |
Correct |
14 ms |
1136 KB |
Output is correct |
| 30 |
Correct |
10 ms |
1100 KB |
Output is correct |
| 31 |
Correct |
13 ms |
1296 KB |
Output is correct |
| 32 |
Correct |
6 ms |
972 KB |
Output is correct |
| 33 |
Correct |
14 ms |
1176 KB |
Output is correct |
| 34 |
Correct |
11 ms |
1100 KB |
Output is correct |
| 35 |
Correct |
14 ms |
1240 KB |
Output is correct |
| 36 |
Correct |
18 ms |
1296 KB |
Output is correct |
| 37 |
Correct |
15 ms |
1204 KB |
Output is correct |
| 38 |
Correct |
16 ms |
1296 KB |
Output is correct |
| 39 |
Correct |
15 ms |
1308 KB |
Output is correct |
| 40 |
Correct |
13 ms |
1308 KB |
Output is correct |
| 41 |
Correct |
13 ms |
1300 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
280 KB |
Output is correct |
| 3 |
Correct |
0 ms |
284 KB |
Output is correct |
| 4 |
Correct |
1 ms |
324 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
332 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
280 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
280 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
268 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
272 KB |
Output is correct |
| 23 |
Correct |
0 ms |
272 KB |
Output is correct |
| 24 |
Correct |
0 ms |
332 KB |
Output is correct |
| 25 |
Correct |
0 ms |
332 KB |
Output is correct |
| 26 |
Correct |
0 ms |
280 KB |
Output is correct |
| 27 |
Correct |
12 ms |
1100 KB |
Output is correct |
| 28 |
Correct |
16 ms |
1316 KB |
Output is correct |
| 29 |
Correct |
14 ms |
1136 KB |
Output is correct |
| 30 |
Correct |
10 ms |
1100 KB |
Output is correct |
| 31 |
Correct |
13 ms |
1296 KB |
Output is correct |
| 32 |
Correct |
6 ms |
972 KB |
Output is correct |
| 33 |
Correct |
14 ms |
1176 KB |
Output is correct |
| 34 |
Correct |
11 ms |
1100 KB |
Output is correct |
| 35 |
Correct |
14 ms |
1240 KB |
Output is correct |
| 36 |
Correct |
18 ms |
1296 KB |
Output is correct |
| 37 |
Correct |
15 ms |
1204 KB |
Output is correct |
| 38 |
Correct |
16 ms |
1296 KB |
Output is correct |
| 39 |
Correct |
15 ms |
1308 KB |
Output is correct |
| 40 |
Correct |
13 ms |
1308 KB |
Output is correct |
| 41 |
Correct |
13 ms |
1300 KB |
Output is correct |
| 42 |
Incorrect |
5 ms |
916 KB |
Output isn't correct |
| 43 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
280 KB |
Output is correct |
| 3 |
Correct |
0 ms |
284 KB |
Output is correct |
| 4 |
Correct |
1 ms |
324 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
332 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
280 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
280 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
268 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
272 KB |
Output is correct |
| 23 |
Correct |
0 ms |
272 KB |
Output is correct |
| 24 |
Correct |
0 ms |
332 KB |
Output is correct |
| 25 |
Correct |
0 ms |
332 KB |
Output is correct |
| 26 |
Correct |
0 ms |
280 KB |
Output is correct |
| 27 |
Correct |
12 ms |
1100 KB |
Output is correct |
| 28 |
Correct |
16 ms |
1316 KB |
Output is correct |
| 29 |
Correct |
14 ms |
1136 KB |
Output is correct |
| 30 |
Correct |
10 ms |
1100 KB |
Output is correct |
| 31 |
Correct |
13 ms |
1296 KB |
Output is correct |
| 32 |
Correct |
6 ms |
972 KB |
Output is correct |
| 33 |
Correct |
14 ms |
1176 KB |
Output is correct |
| 34 |
Correct |
11 ms |
1100 KB |
Output is correct |
| 35 |
Correct |
14 ms |
1240 KB |
Output is correct |
| 36 |
Correct |
18 ms |
1296 KB |
Output is correct |
| 37 |
Correct |
15 ms |
1204 KB |
Output is correct |
| 38 |
Correct |
16 ms |
1296 KB |
Output is correct |
| 39 |
Correct |
15 ms |
1308 KB |
Output is correct |
| 40 |
Correct |
13 ms |
1308 KB |
Output is correct |
| 41 |
Correct |
13 ms |
1300 KB |
Output is correct |
| 42 |
Incorrect |
5 ms |
916 KB |
Output isn't correct |
| 43 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
332 KB |
Output is correct |
| 2 |
Correct |
0 ms |
280 KB |
Output is correct |
| 3 |
Correct |
0 ms |
284 KB |
Output is correct |
| 4 |
Correct |
1 ms |
324 KB |
Output is correct |
| 5 |
Correct |
0 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
0 ms |
332 KB |
Output is correct |
| 8 |
Correct |
0 ms |
332 KB |
Output is correct |
| 9 |
Correct |
0 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
0 ms |
332 KB |
Output is correct |
| 12 |
Correct |
0 ms |
332 KB |
Output is correct |
| 13 |
Correct |
0 ms |
280 KB |
Output is correct |
| 14 |
Correct |
0 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
280 KB |
Output is correct |
| 16 |
Correct |
0 ms |
332 KB |
Output is correct |
| 17 |
Correct |
0 ms |
332 KB |
Output is correct |
| 18 |
Correct |
0 ms |
332 KB |
Output is correct |
| 19 |
Correct |
0 ms |
332 KB |
Output is correct |
| 20 |
Correct |
0 ms |
268 KB |
Output is correct |
| 21 |
Correct |
0 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
272 KB |
Output is correct |
| 23 |
Correct |
0 ms |
272 KB |
Output is correct |
| 24 |
Correct |
0 ms |
332 KB |
Output is correct |
| 25 |
Correct |
0 ms |
332 KB |
Output is correct |
| 26 |
Correct |
0 ms |
280 KB |
Output is correct |
| 27 |
Correct |
12 ms |
1100 KB |
Output is correct |
| 28 |
Correct |
16 ms |
1316 KB |
Output is correct |
| 29 |
Correct |
14 ms |
1136 KB |
Output is correct |
| 30 |
Correct |
10 ms |
1100 KB |
Output is correct |
| 31 |
Correct |
13 ms |
1296 KB |
Output is correct |
| 32 |
Correct |
6 ms |
972 KB |
Output is correct |
| 33 |
Correct |
14 ms |
1176 KB |
Output is correct |
| 34 |
Correct |
11 ms |
1100 KB |
Output is correct |
| 35 |
Correct |
14 ms |
1240 KB |
Output is correct |
| 36 |
Correct |
18 ms |
1296 KB |
Output is correct |
| 37 |
Correct |
15 ms |
1204 KB |
Output is correct |
| 38 |
Correct |
16 ms |
1296 KB |
Output is correct |
| 39 |
Correct |
15 ms |
1308 KB |
Output is correct |
| 40 |
Correct |
13 ms |
1308 KB |
Output is correct |
| 41 |
Correct |
13 ms |
1300 KB |
Output is correct |
| 42 |
Incorrect |
5 ms |
916 KB |
Output isn't correct |
| 43 |
Halted |
0 ms |
0 KB |
- |
