oj.uz

Submission #787952

# Submission time Handle Problem Language Result Execution time Memory
787952 2023-07-19T15:15:20 Z rainboy Voting Cities (NOI22_votingcity) C
100 / 100
 94 ms 23620 KB 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define N	5000
#define N_	(N << 5)
#define INF	0x3f3f3f3f3f3f3f3fLL

long long min(long long a, long long b) { return a < b ? a : b; }

int *ej[N_], *ew[N_], eo[N_], n_;

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

	if (o >= 2 && (o & o - 1) == 0) {
		ej[i] = (int *) realloc(ej[i], o * 2 * sizeof *ej[i]);
		ew[i] = (int *) realloc(ew[i], o * 2 * sizeof *ew[i]);
	}
	ej[i][o] = j, ew[i][o] = w;
}

long long dd[N_]; int iq[N_ + 1], pq[N_], cnt;

int lt(int i, int j) { return dd[i] < dd[j]; }

int p2(int p) {
	return (p *= 2) > cnt ? 0 : (p < cnt && lt(iq[p + 1], iq[p]) ? p + 1 : p);
}

void pq_up(int i) {
	int p, q, j;

	for (p = pq[i]; (q = p / 2) && lt(i, j = iq[q]); p = q)
		iq[pq[j] = p] = j;
	iq[pq[i] = p] = i;
}

void pq_dn(int i) {
	int p, q, j;

	for (p = pq[i]; (q = p2(p)) && lt(j = iq[q], i); p = q)
		iq[pq[j] = p] = j;
	iq[pq[i] = p] = i;
}

void pq_add_last(int i) {
	iq[pq[i] = ++cnt] = i;
}

int pq_remove_first() {
	int i = iq[1], j = iq[cnt--];

	if (j != i)
		pq[j] = 1, pq_dn(j);
	pq[i] = 0;
	return i;
}

int main() {
	static int ww[5];
	int n, m, k, q, g, i, j, b, o, w;
	long long d, d_;

	scanf("%d%d%d", &n, &m, &k), n_ = n << 5;
	for (i = 0; i < n_; i++) {
		ej[i] = (int *) malloc(2 * sizeof *ej[i]);
		ew[i] = (int *) malloc(2 * sizeof *ew[i]);
	}
	memset(dd, 0x3f, n_ * sizeof *dd);
	while (k--) {
		scanf("%d", &i);
		dd[i << 5 | 0] = 0, pq_add_last(i << 5 | 0);
	}
	while (m--) {
		scanf("%d%d%d", &i, &j, &w);
		for (b = 0; b < 1 << 5; b++) {
			append(j << 5 | b, i << 5 | b, w);
			for (g = 0; g < 5; g++)
				if ((b & 1 << g) == 0)
					append(j << 5 | b, i << 5 | b | 1 << g, w / 10 * (9 - g));
		}
	}
	while (cnt) {
		i = pq_remove_first();
		for (o = eo[i]; o--; ) {
			j = ej[i][o], w = ew[i][o], d = dd[i] + w;
			if (dd[j] > d) {
				if (dd[j] == INF)
					pq_add_last(j);
				dd[j] = d, pq_up(j);
			}
		}
	}
	scanf("%d", &q);
	while (q--) {
		scanf("%d", &i);
		for (g = 0; g < 5; g++)
			scanf("%d", &ww[g]);
		d_ = INF;
		for (b = 0; b < 1 << 5; b++) {
			d = dd[i << 5 | b];
			for (g = 0; g < 5; g++)
				if ((b & 1 << g) != 0)
					d = ww[g] == -1 ? INF : min(d + ww[g], INF);
			d_ = min(d_, d);
		}
		if (d_ == INF)
			d_ = -1;
		printf("%lld\n", d_);
	}
	return 0;
}

Compilation message

Main.c: In function 'append':
Main.c:16:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   16 |  if (o >= 2 && (o & o - 1) == 0) {
      |                     ~~^~~
Main.c: In function 'main':
Main.c:65:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |  scanf("%d%d%d", &n, &m, &k), n_ = n << 5;
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:72:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |   scanf("%d", &i);
      |   ^~~~~~~~~~~~~~~
Main.c:76:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |   scanf("%d%d%d", &i, &j, &w);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:95:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |  scanf("%d", &q);
      |  ^~~~~~~~~~~~~~~
Main.c:97:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   97 |   scanf("%d", &i);
      |   ^~~~~~~~~~~~~~~
Main.c:99:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |    scanf("%d", &ww[g]);
      |    ^~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 23440 KB Output is correct
2 Correct 38 ms 16516 KB Output is correct
3 Correct 79 ms 22660 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 296 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 23440 KB Output is correct
2 Correct 38 ms 16516 KB Output is correct
3 Correct 79 ms 22660 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 77 ms 23476 KB Output is correct
7 Correct 30 ms 16616 KB Output is correct
8 Correct 78 ms 22736 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 23440 KB Output is correct
2 Correct 38 ms 16516 KB Output is correct
3 Correct 79 ms 22660 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 77 ms 23476 KB Output is correct
7 Correct 30 ms 16616 KB Output is correct
8 Correct 78 ms 22736 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 82 ms 23540 KB Output is correct
12 Correct 34 ms 16568 KB Output is correct
13 Correct 79 ms 22692 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 288 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 23440 KB Output is correct
2 Correct 38 ms 16516 KB Output is correct
3 Correct 79 ms 22660 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 39 ms 22732 KB Output is correct
7 Correct 36 ms 16808 KB Output is correct
8 Correct 80 ms 22720 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 23440 KB Output is correct
2 Correct 38 ms 16516 KB Output is correct
3 Correct 79 ms 22660 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 77 ms 23476 KB Output is correct
7 Correct 30 ms 16616 KB Output is correct
8 Correct 78 ms 22736 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 39 ms 22732 KB Output is correct
12 Correct 36 ms 16808 KB Output is correct
13 Correct 80 ms 22720 KB Output is correct
14 Correct 79 ms 23372 KB Output is correct
15 Correct 31 ms 16560 KB Output is correct
16 Correct 79 ms 22784 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 23456 KB Output is correct
2 Correct 83 ms 23464 KB Output is correct
3 Correct 47 ms 16636 KB Output is correct
4 Correct 79 ms 22812 KB Output is correct

Subtask #7
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1876 KB Output is correct
2 Correct 4 ms 1876 KB Output is correct
3 Correct 1 ms 680 KB Output is correct
4 Correct 3 ms 1492 KB Output is correct
5 Correct 3 ms 1620 KB Output is correct
6 Correct 1 ms 680 KB Output is correct
7 Correct 4 ms 1876 KB Output is correct
8 Correct 4 ms 1876 KB Output is correct

Subtask #8
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 23440 KB Output is correct
2 Correct 38 ms 16516 KB Output is correct
3 Correct 79 ms 22660 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 77 ms 23476 KB Output is correct
7 Correct 30 ms 16616 KB Output is correct
8 Correct 78 ms 22736 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 82 ms 23540 KB Output is correct
12 Correct 34 ms 16568 KB Output is correct
13 Correct 79 ms 22692 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 288 KB Output is correct
16 Correct 39 ms 22732 KB Output is correct
17 Correct 36 ms 16808 KB Output is correct
18 Correct 80 ms 22720 KB Output is correct
19 Correct 79 ms 23372 KB Output is correct
20 Correct 31 ms 16560 KB Output is correct
21 Correct 79 ms 22784 KB Output is correct
22 Correct 77 ms 23456 KB Output is correct
23 Correct 83 ms 23464 KB Output is correct
24 Correct 47 ms 16636 KB Output is correct
25 Correct 79 ms 22812 KB Output is correct
26 Correct 4 ms 1876 KB Output is correct
27 Correct 4 ms 1876 KB Output is correct
28 Correct 1 ms 680 KB Output is correct
29 Correct 3 ms 1492 KB Output is correct
30 Correct 3 ms 1620 KB Output is correct
31 Correct 1 ms 680 KB Output is correct
32 Correct 4 ms 1876 KB Output is correct
33 Correct 4 ms 1876 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 292 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 84 ms 23608 KB Output is correct
38 Correct 91 ms 23620 KB Output is correct
39 Correct 78 ms 23508 KB Output is correct
40 Correct 13 ms 14120 KB Output is correct
41 Correct 9 ms 14644 KB Output is correct
42 Correct 83 ms 22896 KB Output is correct
43 Correct 94 ms 22888 KB Output is correct
44 Correct 81 ms 22680 KB Output is correct
45 Correct 43 ms 16624 KB Output is correct