Submission #584543

# Submission time Handle Problem Language Result Execution time Memory
584543 2022-06-27T14:21:46 Z rainboy Game (APIO22_game) C++17
60 / 100
4000 ms 34468 KB
#include "game.h"
#include <stdlib.h>

const int N = 300000;

int *ej[N], eo[N], *fi[N], fo[N], ll[N], rr[N], n, k;

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

void init(int n_, int k_) {
	n = n_, k = k_;
	for (int i = 0; i < n; i++) {
		ej[i] = (int *) malloc(2 * sizeof *ej[i]);
		fi[i] = (int *) malloc(2 * sizeof *fi[i]);
	}
	for (int i = 0; i < n; i++)
		if (i < k)
			ll[i] = rr[i] = i;
		else
			ll[i] = -1, rr[i] = k;
}

int dfs1(int i, int l) {
	int o;
	if (ll[i] >= l)
		return 0;
	ll[i] = l;
	if (ll[i] > rr[i] || ll[i] == rr[i] && i >= k)
		return 1;
	for (o = eo[i]; o--; ) {
		int j = ej[i][o];
		if (dfs1(j, l))
			return 1;
	}
	return 0;
}

int dfs2(int j, int r) {
	int o;
	if (rr[j] <= r)
		return 0;
	rr[j] = r;
	if (ll[j] > rr[j] || ll[j] == rr[j] && j >= k)
		return 1;
	for (o = fo[j]; o--; ) {
		int i = fi[j][o];
		if (dfs2(i, r))
			return 1;
	}
	return 0;
}

int add_teleporter(int i, int j) {
	if (i == j)
		return i < k;
	append(ej, eo, i, j), append(fi, fo, j, i);
  return dfs1(j, ll[i]) || dfs2(i, rr[j]);
}

Compilation message

game.cpp: In function 'void append(int**, int*, int, int)':
game.cpp:10:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   10 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
game.cpp: In function 'int dfs1(int, int)':
game.cpp:33:38: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   33 |  if (ll[i] > rr[i] || ll[i] == rr[i] && i >= k)
      |                       ~~~~~~~~~~~~~~~^~~~~~~~~
game.cpp: In function 'int dfs2(int, int)':
game.cpp:48:38: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   48 |  if (ll[j] > rr[j] || ll[j] == rr[j] && j >= k)
      |                       ~~~~~~~~~~~~~~~^~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 0 ms 336 KB Output is correct
18 Correct 0 ms 336 KB Output is correct
19 Correct 0 ms 336 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 0 ms 336 KB Output is correct
18 Correct 0 ms 336 KB Output is correct
19 Correct 0 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 0 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 6 ms 540 KB Output is correct
25 Correct 3 ms 464 KB Output is correct
26 Correct 3 ms 464 KB Output is correct
27 Correct 3 ms 428 KB Output is correct
28 Correct 2 ms 336 KB Output is correct
29 Correct 3 ms 416 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 0 ms 336 KB Output is correct
18 Correct 0 ms 336 KB Output is correct
19 Correct 0 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 0 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 6 ms 540 KB Output is correct
25 Correct 3 ms 464 KB Output is correct
26 Correct 3 ms 464 KB Output is correct
27 Correct 3 ms 428 KB Output is correct
28 Correct 2 ms 336 KB Output is correct
29 Correct 3 ms 416 KB Output is correct
30 Correct 15 ms 3024 KB Output is correct
31 Correct 5 ms 3024 KB Output is correct
32 Correct 16 ms 3252 KB Output is correct
33 Correct 13 ms 3132 KB Output is correct
34 Correct 935 ms 4464 KB Output is correct
35 Correct 349 ms 3664 KB Output is correct
36 Correct 30 ms 3224 KB Output is correct
37 Correct 24 ms 3136 KB Output is correct
38 Correct 19 ms 3188 KB Output is correct
39 Correct 25 ms 3240 KB Output is correct
40 Correct 795 ms 4552 KB Output is correct
41 Correct 141 ms 3664 KB Output is correct
42 Correct 95 ms 3392 KB Output is correct
43 Correct 38 ms 3876 KB Output is correct
44 Correct 764 ms 3212 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 0 ms 208 KB Output is correct
16 Correct 0 ms 336 KB Output is correct
17 Correct 0 ms 336 KB Output is correct
18 Correct 0 ms 336 KB Output is correct
19 Correct 0 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 0 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 6 ms 540 KB Output is correct
25 Correct 3 ms 464 KB Output is correct
26 Correct 3 ms 464 KB Output is correct
27 Correct 3 ms 428 KB Output is correct
28 Correct 2 ms 336 KB Output is correct
29 Correct 3 ms 416 KB Output is correct
30 Correct 15 ms 3024 KB Output is correct
31 Correct 5 ms 3024 KB Output is correct
32 Correct 16 ms 3252 KB Output is correct
33 Correct 13 ms 3132 KB Output is correct
34 Correct 935 ms 4464 KB Output is correct
35 Correct 349 ms 3664 KB Output is correct
36 Correct 30 ms 3224 KB Output is correct
37 Correct 24 ms 3136 KB Output is correct
38 Correct 19 ms 3188 KB Output is correct
39 Correct 25 ms 3240 KB Output is correct
40 Correct 795 ms 4552 KB Output is correct
41 Correct 141 ms 3664 KB Output is correct
42 Correct 95 ms 3392 KB Output is correct
43 Correct 38 ms 3876 KB Output is correct
44 Correct 764 ms 3212 KB Output is correct
45 Correct 191 ms 28588 KB Output is correct
46 Correct 26 ms 28360 KB Output is correct
47 Correct 23 ms 28340 KB Output is correct
48 Correct 257 ms 34468 KB Output is correct
49 Correct 195 ms 28444 KB Output is correct
50 Execution timed out 4054 ms 34324 KB Time limit exceeded
51 Halted 0 ms 0 KB -