| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 481178 |
2021-10-19T18:04:05 Z |
rainboy |
Drvca (COCI19_drvca) |
C |
|
47 ms |
3060 KB |
#include <stdio.h>
#include <string.h>
#define N 100000
unsigned int X = 12345;
int rand_() {
return (X *= 3) >> 1;
}
void sort(int *aa, int l, int r) {
while (l < r) {
int i = l, j = l, k = r, a = aa[l + rand_() % (r - l)], tmp;
while (j < k)
if (aa[j] == a)
j++;
else if (aa[j] < a) {
tmp = aa[i], aa[i] = aa[j], aa[j] = tmp;
i++, j++;
} else {
k--;
tmp = aa[j], aa[j] = aa[k], aa[k] = tmp;
}
sort(aa, l, i);
l = k;
}
}
int solve(int *aa, int n, int a, int b) {
static char in[N];
static int dd[N];
int i, k, c, d;
memset(in, 0, n * sizeof *in);
for (i = n - 2; i >= 0; i--)
dd[i] = i == n - 2 || dd[i + 1] == aa[i + 1] - aa[i] ? aa[i + 1] - aa[i] : -2;
k = 0, c = -1, d = -1;
for (i = 0; i < n; i++)
if (aa[i] == a) {
in[i] = 1, a += b, k++;
if (k < n) {
if (i == n - 2) {
if (c != -1 && d != -1 && aa[i + 1] - c != d)
continue;
} else if (i < n - 2) {
if (dd[i + 1] == -2)
continue;
if (d != -1 && d != dd[i + 1])
continue;
if (c != -1 && aa[i + 1] - c != dd[i + 1])
continue;
}
printf("%d\n", k);
for (i = 0; i < n; i++)
if (in[i])
printf("%d ", aa[i]);
printf("\n");
printf("%d\n", n - k);
for (i = 0; i < n; i++)
if (!in[i])
printf("%d ", aa[i]);
printf("\n");
return 1;
}
} else {
if (c != -1) {
if (d != -1 && aa[i] - c != d)
return 0;
d = aa[i] - c;
}
c = aa[i];
}
return 0;
}
int main() {
static int aa[N];
int n, i;
scanf("%d", &n);
for (i = 0; i < n; i++)
scanf("%d", &aa[i]);
sort(aa, 0, n);
if (!solve(aa, n, aa[0], aa[1] - aa[0]) && !solve(aa, n, aa[0], aa[2] - aa[0]) && !solve(aa, n, aa[1], aa[2] - aa[1])) {
printf("-1\n");
return 0;
}
return 0;
}
Compilation message
drvca.c: In function 'main':
drvca.c:82:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
82 | scanf("%d", &n);
| ^~~~~~~~~~~~~~~
drvca.c:84:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
84 | scanf("%d", &aa[i]);
| ^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
276 KB |
Output is correct |
| 21 |
Correct |
0 ms |
204 KB |
Output is correct |
| 22 |
Correct |
0 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
0 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
0 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
0 ms |
204 KB |
Output is correct |
| 30 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
37 ms |
2060 KB |
Output is correct |
| 2 |
Correct |
37 ms |
2116 KB |
Output is correct |
| 3 |
Correct |
37 ms |
2116 KB |
Output is correct |
| 4 |
Correct |
47 ms |
2120 KB |
Output is correct |
| 5 |
Correct |
37 ms |
2064 KB |
Output is correct |
| 6 |
Correct |
34 ms |
2064 KB |
Output is correct |
| 7 |
Correct |
47 ms |
2060 KB |
Output is correct |
| 8 |
Correct |
39 ms |
2116 KB |
Output is correct |
| 9 |
Correct |
35 ms |
1812 KB |
Output is correct |
| 10 |
Correct |
33 ms |
2064 KB |
Output is correct |
| 11 |
Correct |
24 ms |
2124 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
0 ms |
204 KB |
Output is correct |
| 7 |
Correct |
1 ms |
204 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
0 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
0 ms |
204 KB |
Output is correct |
| 13 |
Correct |
0 ms |
204 KB |
Output is correct |
| 14 |
Correct |
0 ms |
204 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
204 KB |
Output is correct |
| 18 |
Correct |
1 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
276 KB |
Output is correct |
| 21 |
Correct |
0 ms |
204 KB |
Output is correct |
| 22 |
Correct |
0 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
204 KB |
Output is correct |
| 24 |
Correct |
0 ms |
204 KB |
Output is correct |
| 25 |
Correct |
0 ms |
204 KB |
Output is correct |
| 26 |
Correct |
1 ms |
204 KB |
Output is correct |
| 27 |
Correct |
0 ms |
204 KB |
Output is correct |
| 28 |
Correct |
1 ms |
204 KB |
Output is correct |
| 29 |
Correct |
0 ms |
204 KB |
Output is correct |
| 30 |
Correct |
0 ms |
204 KB |
Output is correct |
| 31 |
Correct |
37 ms |
2060 KB |
Output is correct |
| 32 |
Correct |
37 ms |
2116 KB |
Output is correct |
| 33 |
Correct |
37 ms |
2116 KB |
Output is correct |
| 34 |
Correct |
47 ms |
2120 KB |
Output is correct |
| 35 |
Correct |
37 ms |
2064 KB |
Output is correct |
| 36 |
Correct |
34 ms |
2064 KB |
Output is correct |
| 37 |
Correct |
47 ms |
2060 KB |
Output is correct |
| 38 |
Correct |
39 ms |
2116 KB |
Output is correct |
| 39 |
Correct |
35 ms |
1812 KB |
Output is correct |
| 40 |
Correct |
33 ms |
2064 KB |
Output is correct |
| 41 |
Correct |
24 ms |
2124 KB |
Output is correct |
| 42 |
Correct |
0 ms |
204 KB |
Output is correct |
| 43 |
Correct |
37 ms |
2116 KB |
Output is correct |
| 44 |
Correct |
28 ms |
2028 KB |
Output is correct |
| 45 |
Correct |
33 ms |
2500 KB |
Output is correct |
| 46 |
Correct |
35 ms |
3052 KB |
Output is correct |
| 47 |
Correct |
29 ms |
2040 KB |
Output is correct |
| 48 |
Correct |
35 ms |
2500 KB |
Output is correct |
| 49 |
Correct |
36 ms |
3048 KB |
Output is correct |
| 50 |
Correct |
27 ms |
2116 KB |
Output is correct |
| 51 |
Correct |
46 ms |
2520 KB |
Output is correct |
| 52 |
Correct |
35 ms |
3060 KB |
Output is correct |
| 53 |
Correct |
29 ms |
2116 KB |
Output is correct |
| 54 |
Correct |
35 ms |
2500 KB |
Output is correct |
| 55 |
Correct |
38 ms |
3012 KB |
Output is correct |
| 56 |
Correct |
25 ms |
3020 KB |
Output is correct |
| 57 |
Correct |
23 ms |
3056 KB |
Output is correct |
| 58 |
Correct |
0 ms |
204 KB |
Output is correct |
