oj.uz

Submission #1049094

# Submission time Handle Problem Language Result Execution time Memory
1049094 2024-08-08T13:19:50 Z rainboy Brought Down the Grading Server? (CEOI23_balance) C
50 / 100
 173 ms 30264 KB 
#include <stdio.h>
#include <stdlib.h>

#define N	100000
#define M	500000

int ij[M]; char used[M];
int *eh[N], eo[N], n, m, k;
int ii_[N], n_;

void append(int i, int h) {
	int o = eo[i]++;

	if (o == 0) {
		eh[i] = (int *) malloc(2 * sizeof *eh[i]);
		ii_[n_++] = i;
	} else if (o >= 2 && (o & o - 1) == 0)
		eh[i] = (int *) realloc(eh[i], o * 2 * sizeof *eh[i]);
	eh[i][o] = h;
}

int hh[M], cnt;

void dfs(int i) {
	while (eo[i]) {
		int h = eh[i][--eo[i]], j = i ^ ij[h];

		if (!used[h])
			used[h] = 1, dfs(j), hh[cnt++] = h;
	}
}

void solve(int *ii, int m) {
	static char odd[N];
	int g, h, h_, i, i_, j;

	if (m == 1)
		return;
	m /= 2;
	n_ = 0;
	for (h = 0; h < m; h++)
		for (g = 0; g < k; g++) {
			h_ = h * k + g, i = ii[h_], j = ii[m * k + h_];
			ij[h_] = i ^ j, used[h_] = 0;
			append(i, h_), append(j, h_);
		}
	for (i = 0; i < n_; i++) {
		i_ = ii_[i];
		if (eo[i_] % 2 != 0)
			odd[i_] = 1;
	}
	for (i = 0; i < n_; i++) {
		i_ = ii_[i];
		if (odd[i_]) {
			odd[i_] = 0;
			cnt = 0, dfs(i_);
			while (cnt--) {
				h_ = hh[cnt], h = h_ / k, g = h_ % k;
				ii[h_] = i_, ii[m * k + h_] = i_ ^= ij[h_];
			}
			odd[i_] = 0;
		}
	}
	for (i = 0; i < n_; i++) {
		i_ = ii_[i];
		cnt = 0, dfs(i_);
		while (cnt--) {
			h_ = hh[cnt], h = h_ / k, g = h_ % k;
			ii[h_] = i_, ii[m * k + h_] = i_ ^= ij[h_];
		}
	}
	for (i = 0; i < n_; i++) {
		i_ = ii_[i];
		free(eh[i_]), eh[i_] = NULL, eo[i_] = 0;
	}
	solve(ii, m), solve(ii + m * k, m);
}

int main() {
	static int ii[M];
	int g, h;

	scanf("%d%d%d", &k, &m, &n);
	for (g = 0; g < k; g++)
		for (h = 0; h < m; h++)
			scanf("%d", &ii[h * k + g]), ii[h * k + g]--;
	solve(ii, m);
	for (g = 0; g < k; g++) {
		for (h = 0; h < m; h++)
			printf("%d ", ii[h * k + g] + 1);
		printf("\n");
	}
	return 0;
}

Compilation message

balance.c: In function 'append':
balance.c:17:30: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   17 |  } else if (o >= 2 && (o & o - 1) == 0)
      |                            ~~^~~
balance.c: In function 'main':
balance.c:83:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   83 |  scanf("%d%d%d", &k, &m, &n);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
balance.c:86:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |    scanf("%d", &ii[h * k + g]), ii[h * k + g]--;
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Correct
2 Correct 0 ms 348 KB Correct

Subtask #1
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Incorrect 0 ms 348 KB Integer 30 violates the range [1, 20]
3 Halted 0 ms 0 KB -

Subtask #2-1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 13140 KB Correct
2 Correct 34 ms 12964 KB Correct
3 Correct 31 ms 10332 KB Correct
4 Correct 43 ms 14252 KB Correct
5 Correct 57 ms 12112 KB Correct
6 Correct 37 ms 13648 KB Correct
7 Correct 32 ms 7508 KB Correct
8 Correct 60 ms 14160 KB Correct
9 Correct 33 ms 14156 KB Correct
10 Correct 27 ms 14932 KB Correct
11 Correct 27 ms 14940 KB Correct

Subtask #2-2
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 13140 KB Correct
2 Correct 34 ms 12964 KB Correct
3 Correct 31 ms 10332 KB Correct
4 Correct 43 ms 14252 KB Correct
5 Correct 57 ms 12112 KB Correct
6 Correct 37 ms 13648 KB Correct
7 Correct 32 ms 7508 KB Correct
8 Correct 60 ms 14160 KB Correct
9 Correct 33 ms 14156 KB Correct
10 Correct 27 ms 14932 KB Correct
11 Correct 27 ms 14940 KB Correct
12 Correct 36 ms 13908 KB Correct
13 Correct 32 ms 13744 KB Correct
14 Correct 35 ms 12124 KB Correct
15 Correct 22 ms 11612 KB Correct
16 Correct 50 ms 13020 KB Correct
17 Correct 55 ms 14672 KB Correct
18 Correct 31 ms 8276 KB Correct
19 Correct 52 ms 14980 KB Correct
20 Correct 30 ms 14988 KB Correct
21 Correct 49 ms 14988 KB Correct
22 Correct 26 ms 17320 KB Correct
23 Runtime error 32 ms 24236 KB Execution killed with signal 11
24 Halted 0 ms 0 KB -

Subtask #2-3
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Incorrect 0 ms 348 KB Integer 30 violates the range [1, 20]
3 Halted 0 ms 0 KB -

Subtask #3-1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Correct
2 Correct 4 ms 6748 KB Correct
3 Correct 4 ms 880 KB Correct
4 Correct 2 ms 860 KB Correct
5 Correct 2 ms 7004 KB Correct
6 Correct 2 ms 7004 KB Correct
7 Correct 3 ms 7000 KB Correct
8 Correct 2 ms 7004 KB Correct
9 Correct 2 ms 604 KB Correct
10 Correct 3 ms 2908 KB Correct
11 Correct 3 ms 6748 KB Correct
12 Correct 2 ms 1116 KB Correct
13 Correct 2 ms 860 KB Correct
14 Correct 3 ms 1116 KB Correct

Subtask #3-2
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Correct
2 Correct 4 ms 6748 KB Correct
3 Correct 4 ms 880 KB Correct
4 Correct 2 ms 860 KB Correct
5 Correct 2 ms 7004 KB Correct
6 Correct 2 ms 7004 KB Correct
7 Correct 3 ms 7000 KB Correct
8 Correct 2 ms 7004 KB Correct
9 Correct 2 ms 604 KB Correct
10 Correct 3 ms 2908 KB Correct
11 Correct 3 ms 6748 KB Correct
12 Correct 2 ms 1116 KB Correct
13 Correct 2 ms 860 KB Correct
14 Correct 3 ms 1116 KB Correct
15 Correct 1 ms 6492 KB Correct
16 Correct 2 ms 860 KB Correct
17 Correct 3 ms 896 KB Correct
18 Correct 2 ms 6748 KB Correct
19 Correct 2 ms 7004 KB Correct
20 Correct 2 ms 7004 KB Correct
21 Correct 2 ms 856 KB Correct
22 Correct 2 ms 7004 KB Correct
23 Correct 2 ms 6748 KB Correct
24 Correct 2 ms 712 KB Correct
25 Correct 2 ms 2652 KB Correct
26 Correct 2 ms 7004 KB Correct
27 Correct 1 ms 860 KB Correct
28 Correct 2 ms 1116 KB Correct
29 Incorrect 3 ms 7004 KB Integer 60 violates the range [1, 50]
30 Halted 0 ms 0 KB -

Subtask #3-3
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Correct
2 Correct 4 ms 6748 KB Correct
3 Correct 4 ms 880 KB Correct
4 Correct 2 ms 860 KB Correct
5 Correct 2 ms 7004 KB Correct
6 Correct 2 ms 7004 KB Correct
7 Correct 3 ms 7000 KB Correct
8 Correct 2 ms 7004 KB Correct
9 Correct 2 ms 604 KB Correct
10 Correct 3 ms 2908 KB Correct
11 Correct 3 ms 6748 KB Correct
12 Correct 2 ms 1116 KB Correct
13 Correct 2 ms 860 KB Correct
14 Correct 3 ms 1116 KB Correct
15 Correct 1 ms 6492 KB Correct
16 Correct 2 ms 860 KB Correct
17 Correct 3 ms 896 KB Correct
18 Correct 2 ms 6748 KB Correct
19 Correct 2 ms 7004 KB Correct
20 Correct 2 ms 7004 KB Correct
21 Correct 2 ms 856 KB Correct
22 Correct 2 ms 7004 KB Correct
23 Correct 2 ms 6748 KB Correct
24 Correct 2 ms 712 KB Correct
25 Correct 2 ms 2652 KB Correct
26 Correct 2 ms 7004 KB Correct
27 Correct 1 ms 860 KB Correct
28 Correct 2 ms 1116 KB Correct
29 Incorrect 3 ms 7004 KB Integer 60 violates the range [1, 50]
30 Halted 0 ms 0 KB -

Subtask #4-1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 13140 KB Correct
2 Correct 34 ms 12964 KB Correct
3 Correct 31 ms 10332 KB Correct
4 Correct 43 ms 14252 KB Correct
5 Correct 57 ms 12112 KB Correct
6 Correct 37 ms 13648 KB Correct
7 Correct 32 ms 7508 KB Correct
8 Correct 60 ms 14160 KB Correct
9 Correct 33 ms 14156 KB Correct
10 Correct 27 ms 14932 KB Correct
11 Correct 27 ms 14940 KB Correct
12 Correct 1 ms 6492 KB Correct
13 Correct 4 ms 6748 KB Correct
14 Correct 4 ms 880 KB Correct
15 Correct 2 ms 860 KB Correct
16 Correct 2 ms 7004 KB Correct
17 Correct 2 ms 7004 KB Correct
18 Correct 3 ms 7000 KB Correct
19 Correct 2 ms 7004 KB Correct
20 Correct 2 ms 604 KB Correct
21 Correct 3 ms 2908 KB Correct
22 Correct 3 ms 6748 KB Correct
23 Correct 2 ms 1116 KB Correct
24 Correct 2 ms 860 KB Correct
25 Correct 3 ms 1116 KB Correct
26 Correct 41 ms 13092 KB Correct
27 Correct 39 ms 16512 KB Correct
28 Correct 34 ms 14956 KB Correct
29 Correct 37 ms 14428 KB Correct
30 Correct 52 ms 13260 KB Correct
31 Correct 42 ms 17232 KB Correct
32 Correct 48 ms 8296 KB Correct
33 Correct 30 ms 17488 KB Correct
34 Correct 32 ms 17324 KB Correct
35 Correct 29 ms 17588 KB Correct
36 Correct 28 ms 14172 KB Correct
37 Correct 0 ms 348 KB Correct
38 Correct 4 ms 860 KB Correct
39 Correct 3 ms 6944 KB Correct
40 Correct 2 ms 6952 KB Correct
41 Correct 1 ms 7004 KB Correct
42 Correct 2 ms 860 KB Correct
43 Correct 2 ms 860 KB Correct
44 Correct 3 ms 860 KB Correct
45 Correct 2 ms 2704 KB Correct
46 Correct 2 ms 2908 KB Correct
47 Correct 1 ms 604 KB Correct
48 Correct 2 ms 1116 KB Correct
49 Correct 3 ms 7004 KB Correct
50 Correct 3 ms 7332 KB Correct
51 Correct 173 ms 26948 KB Correct
52 Correct 163 ms 26072 KB Correct
53 Correct 38 ms 4952 KB Correct
54 Correct 51 ms 14576 KB Correct
55 Correct 134 ms 20324 KB Correct
56 Correct 159 ms 25940 KB Correct
57 Correct 138 ms 30264 KB Correct
58 Correct 145 ms 25048 KB Correct
59 Correct 139 ms 18308 KB Correct
60 Correct 119 ms 23788 KB Correct
61 Correct 163 ms 26040 KB Correct
62 Correct 97 ms 17776 KB Correct
63 Correct 85 ms 17024 KB Correct
64 Correct 95 ms 23408 KB Correct
65 Correct 62 ms 25460 KB Correct
66 Correct 64 ms 17928 KB Correct
67 Correct 58 ms 16980 KB Correct
68 Correct 59 ms 25540 KB Correct
69 Correct 57 ms 25552 KB Correct
70 Correct 103 ms 18708 KB Correct
71 Correct 84 ms 18220 KB Correct

Subtask #4-2
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 13140 KB Correct
2 Correct 34 ms 12964 KB Correct
3 Correct 31 ms 10332 KB Correct
4 Correct 43 ms 14252 KB Correct
5 Correct 57 ms 12112 KB Correct
6 Correct 37 ms 13648 KB Correct
7 Correct 32 ms 7508 KB Correct
8 Correct 60 ms 14160 KB Correct
9 Correct 33 ms 14156 KB Correct
10 Correct 27 ms 14932 KB Correct
11 Correct 27 ms 14940 KB Correct
12 Correct 36 ms 13908 KB Correct
13 Correct 32 ms 13744 KB Correct
14 Correct 35 ms 12124 KB Correct
15 Correct 22 ms 11612 KB Correct
16 Correct 50 ms 13020 KB Correct
17 Correct 55 ms 14672 KB Correct
18 Correct 31 ms 8276 KB Correct
19 Correct 52 ms 14980 KB Correct
20 Correct 30 ms 14988 KB Correct
21 Correct 49 ms 14988 KB Correct
22 Correct 26 ms 17320 KB Correct
23 Runtime error 32 ms 24236 KB Execution killed with signal 11
24 Halted 0 ms 0 KB -

Subtask #4-3
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Correct
2 Correct 0 ms 348 KB Correct
3 Correct 0 ms 348 KB Correct
4 Incorrect 0 ms 348 KB Integer 30 violates the range [1, 20]
5 Halted 0 ms 0 KB -