oj.uz

Submission #503358

# Submission time Handle Problem Language Result Execution time Memory
503358 2022-01-07T17:36:25 Z rainboy Akcija (COCI21_akcija) C
40 / 110
 281 ms 14880 KB 
#include <stdio.h>

#define N	2000
#define M	(1 << 20)

unsigned int X = 12345;

int rand_() {
	return (X *= 3) >> 1;
}

int cc[M];
long long ss[M];

void sort(int *hh, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, h = hh[l + rand_() % (r - l)], tmp;

		while (j < k)
			if (cc[hh[j]] == cc[h] && ss[hh[j]] == ss[h])
				j++;
			else if (cc[hh[j]] > cc[h] || cc[hh[j]] == cc[h] && ss[hh[j]] < ss[h]) {
				tmp = hh[i], hh[i] = hh[j], hh[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = hh[j], hh[j] = hh[k], hh[k] = tmp;
			}
		sort(hh, l, i);
		l = k;
	}
}

int main() {
	static int ww[N], qu[N][N], cnt[N], hh[M];
	static char available[N];
	int n, m, k, h, i, d, b, c, c_;
	long long s, s_;

	scanf("%d%d", &n, &k);
	for (i = 0; i < n; i++) {
		scanf("%d%d", &ww[i], &d), d--;
		qu[d][cnt[d]++] = i;
	}
	if (n <= 20) {
		m = 0;
		for (b = 0; b < 1 << n; b++) {
			c = s = 0;
			for (d = 0; d < n; d++)
				for (h = 0; h < cnt[d]; h++)
					if ((b & 1 << qu[d][h]) != 0) {
						c++, s += ww[qu[d][h]];
						if (c > d + 1) {
							c = -1;
							goto out;
						}
					}
out:
			if (c != -1)
				cc[m] = c, ss[m] = s, m++;
		}
		for (h = 0; h < m; h++)
			hh[h] = h;
		sort(hh, 0, m);
		for (h = 0; h < k; h++)
			printf("%d %lld\n", cc[hh[h]], ss[hh[h]]);
	} else {
		c_ = 0, s_ = 0;
		for (d = n - 1, c = 0; d >= 0; d--) {
			for (h = 0; h < cnt[d]; h++)
				available[qu[d][h]] = 1, c++;
			if (c > 0) {
				int i_;

				i_ = -1;
				for (i = 0; i < n; i++)
					if (available[i] && (i_ == -1 || ww[i_] > ww[i]))
						i_ = i;
				available[i_] = 0, c--;
				c_++, s_ += ww[i_];
			}
		}
		printf("%d %lld\n", c_, s_);
	}
	return 0;
}

Compilation message

Main.c: In function 'sort':
Main.c:22:53: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   22 |    else if (cc[hh[j]] > cc[h] || cc[hh[j]] == cc[h] && ss[hh[j]] < ss[h]) {
      |                                  ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
Main.c: In function 'main':
Main.c:40:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |  scanf("%d%d", &n, &k);
      |  ^~~~~~~~~~~~~~~~~~~~~
Main.c:42:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |   scanf("%d%d", &ww[i], &d), d--;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5068 KB Output is correct
2 Correct 6 ms 5352 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 3 ms 4972 KB Output is correct
5 Correct 4 ms 5324 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 4 ms 332 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 420 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5068 KB Output is correct
2 Correct 6 ms 5352 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 3 ms 4972 KB Output is correct
5 Correct 4 ms 5324 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 4 ms 332 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 420 KB Output is correct
14 Correct 5 ms 5028 KB Output is correct
15 Correct 4 ms 5324 KB Output is correct
16 Correct 4 ms 5196 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 420 KB Output is correct
23 Correct 4 ms 332 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 332 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 4956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 8536 KB Output is correct
2 Correct 281 ms 14880 KB Output is correct
3 Correct 61 ms 4264 KB Output is correct
4 Correct 29 ms 2208 KB Output is correct
5 Correct 221 ms 12660 KB Output is correct
6 Correct 2 ms 204 KB Output is correct
7 Correct 58 ms 656 KB Output is correct
8 Correct 4 ms 332 KB Output is correct
9 Correct 4 ms 332 KB Output is correct
10 Correct 5 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 54 ms 3688 KB Output is correct

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 460 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5068 KB Output is correct
2 Correct 6 ms 5352 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 3 ms 4972 KB Output is correct
5 Correct 4 ms 5324 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 4 ms 332 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 420 KB Output is correct
14 Correct 5 ms 5028 KB Output is correct
15 Correct 4 ms 5324 KB Output is correct
16 Correct 4 ms 5196 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Correct 6 ms 5324 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 420 KB Output is correct
23 Correct 4 ms 332 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Incorrect 4 ms 4956 KB Output isn't correct
28 Halted 0 ms 0 KB -