oj.uz

Submission #831488

# Submission time Handle Problem Language Result Execution time Memory
831488 2023-08-20T09:46:24 Z rainboy Watermelon (INOI20_watermelon) C
81 / 100
 51 ms 30036 KB 
#include <stdio.h>
#include <stdlib.h>

#define N	100000
#define K	10
#define N_	(N * K + 1)

unsigned int Z = 12345;

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

int n, k;

int *ej[N], eo[N], dd[N];

void append(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, dd[j]++;
}

int zz[N_], ll[N_], rr[N_], ii[N_], u_, l_, r_;

int node(int i) {
	static int _ = 1;

	zz[_] = rand_();
	ii[_] = i;
	return _++;
}

void split(int u, int i) {
	if (u == 0) {
		u_ = l_ = r_ = 0;
		return;
	}
	if (ii[u] < i) {
		split(rr[u], i);
		rr[u] = l_, l_ = u;
	} else if (ii[u] > i) {
		split(ll[u], i);
		ll[u] = r_, r_ = u;
	} else {
		u_ = u, l_ = ll[u], r_ = rr[u];
		ll[u] = rr[u] = 0;
	}
}

int merge(int u, int v) {
	if (u == 0)
		return v;
	if (v == 0)
		return u;
	if (zz[u] < zz[v]) {
		rr[u] = merge(rr[u], v);
		return u;
	} else {
		ll[v] = merge(u, ll[v]);
		return v;
	}
}

void tr_add(int i) {
	split(u_, i);
	u_ = merge(merge(l_, node(i)), r_);
}

void tr_remove(int i) {
	split(u_, i);
	u_ = merge(l_, r_);
}

int tr_higher(int i) {
	int u = u_, i_ = -1;

	while (u)
		if (ii[u] > i)
			i_ = ii[u], u = ll[u];
		else
			u = rr[u];
	return i_;
}

int aa[N];

int branch(int a) {
	int i, o;

	if (a == n) {
		if (--k == 0) {
			for (i = 0; i < n; i++)
				printf("%d ", aa[i] + 1);
			printf("\n");
			return 1;
		}
		return 0;
	}
	if (u_ == 0)
		return 0;
	i = -1;
	while ((i = tr_higher(i)) != -1) {
		tr_remove(i);
		aa[i] = a;
		for (o = eo[i]; o--; ) {
			int j = ej[i][o];

			if (--dd[j] == 0)
				tr_add(j);
		}
		if (branch(a + 1))
			return 1;
		for (o = eo[i]; o--; ) {
			int j = ej[i][o];

			if (dd[j]++ == 0)
				tr_remove(j);
		}
		tr_add(i);
	}
	return 0;
}

int main() {
	static int tt[N], qu[N];
	int cnt, h, i;

	scanf("%d%d", &n, &k);
	for (i = 0; i < n; i++)
		scanf("%d", &tt[i]);
	if (tt[n - 1] != -1) {
		printf("-1\n");
		return 0;
	}
	for (i = 0; i < n; i++)
		ej[i] = (int *) malloc(2 * sizeof *ej[i]);
	cnt = 0;
	for (i = n - 1; i >= 0; i--)
		if (tt[i] == -1) {
			while (cnt)
				append(qu[--cnt], i);
			qu[cnt++] = i;
		} else {
			h = cnt;
			while (h >= 2 && tt[qu[h - 1]] < tt[i])
				append(qu[--h], i);
			if ((h == cnt ? 0 : tt[qu[h]]) != tt[i] - 1) {
				printf("-1\n");
				return 0;
			}
			append(i, qu[h - 1]);
			if (h >= 2 && tt[qu[h - 1]] == tt[i])
				h--;
			qu[h++] = i;
			cnt = h;
		}
	for (i = 0; i < n; i++)
		if (dd[i] == 0)
			tr_add(i);
	if (!branch(0))
		printf("-1\n");
	return 0;
}

Compilation message

Main.c: In function 'append':
Main.c:21:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   21 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
Main.c: In function 'main':
Main.c:131:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  131 |  scanf("%d%d", &n, &k);
      |  ^~~~~~~~~~~~~~~~~~~~~
Main.c:133:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  133 |   scanf("%d", &tt[i]);
      |   ^~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 244 KB Output is correct
7 Correct 0 ms 292 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 288 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 296 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 292 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 292 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 244 KB Output is correct
7 Correct 0 ms 292 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 288 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 296 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 292 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 292 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 596 KB Output is correct
35 Correct 1 ms 596 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 304 KB Output is correct
38 Correct 1 ms 548 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 1 ms 596 KB Output is correct
41 Correct 1 ms 596 KB Output is correct
42 Correct 1 ms 596 KB Output is correct
43 Correct 1 ms 596 KB Output is correct
44 Correct 1 ms 980 KB Output is correct
45 Correct 1 ms 596 KB Output is correct
46 Correct 1 ms 728 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 0 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 0 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 596 KB Output is correct
54 Correct 1 ms 548 KB Output is correct
55 Correct 0 ms 340 KB Output is correct
56 Correct 0 ms 340 KB Output is correct
57 Correct 1 ms 596 KB Output is correct
58 Correct 1 ms 596 KB Output is correct
59 Correct 1 ms 724 KB Output is correct
60 Correct 1 ms 596 KB Output is correct
61 Correct 1 ms 596 KB Output is correct
62 Correct 1 ms 556 KB Output is correct
63 Correct 1 ms 596 KB Output is correct
64 Correct 1 ms 468 KB Output is correct
65 Correct 1 ms 468 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 7972 KB Output is correct
2 Correct 5 ms 2388 KB Output is correct
3 Correct 18 ms 8040 KB Output is correct
4 Correct 5 ms 2388 KB Output is correct
5 Correct 18 ms 7956 KB Output is correct
6 Correct 23 ms 8020 KB Output is correct
7 Correct 20 ms 7924 KB Output is correct
8 Correct 17 ms 8020 KB Output is correct
9 Correct 17 ms 8020 KB Output is correct
10 Correct 17 ms 8004 KB Output is correct
11 Correct 37 ms 15752 KB Output is correct
12 Correct 37 ms 15628 KB Output is correct
13 Correct 37 ms 15680 KB Output is correct
14 Correct 35 ms 15656 KB Output is correct
15 Correct 9 ms 4564 KB Output is correct
16 Correct 9 ms 4600 KB Output is correct
17 Correct 9 ms 4564 KB Output is correct
18 Correct 9 ms 4564 KB Output is correct
19 Correct 9 ms 4588 KB Output is correct
20 Correct 11 ms 4564 KB Output is correct
21 Correct 13 ms 4564 KB Output is correct
22 Correct 13 ms 4580 KB Output is correct
23 Correct 12 ms 4520 KB Output is correct
24 Correct 25 ms 15764 KB Output is correct
25 Correct 24 ms 15684 KB Output is correct
26 Correct 29 ms 15700 KB Output is correct
27 Correct 24 ms 15716 KB Output is correct
28 Correct 25 ms 15696 KB Output is correct
29 Correct 25 ms 15704 KB Output is correct
30 Correct 9 ms 4928 KB Output is correct
31 Correct 14 ms 8020 KB Output is correct
32 Correct 24 ms 14200 KB Output is correct
33 Correct 27 ms 15700 KB Output is correct
34 Correct 2 ms 1748 KB Output is correct
35 Correct 5 ms 3412 KB Output is correct
36 Correct 13 ms 7964 KB Output is correct
37 Correct 29 ms 15652 KB Output is correct
38 Correct 39 ms 15692 KB Output is correct
39 Correct 35 ms 15692 KB Output is correct
40 Correct 34 ms 15752 KB Output is correct
41 Correct 24 ms 15752 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 7972 KB Output is correct
2 Correct 5 ms 2388 KB Output is correct
3 Correct 18 ms 8040 KB Output is correct
4 Correct 5 ms 2388 KB Output is correct
5 Correct 18 ms 7956 KB Output is correct
6 Correct 23 ms 8020 KB Output is correct
7 Correct 20 ms 7924 KB Output is correct
8 Correct 17 ms 8020 KB Output is correct
9 Correct 17 ms 8020 KB Output is correct
10 Correct 17 ms 8004 KB Output is correct
11 Correct 37 ms 15752 KB Output is correct
12 Correct 37 ms 15628 KB Output is correct
13 Correct 37 ms 15680 KB Output is correct
14 Correct 35 ms 15656 KB Output is correct
15 Correct 9 ms 4564 KB Output is correct
16 Correct 9 ms 4600 KB Output is correct
17 Correct 9 ms 4564 KB Output is correct
18 Correct 9 ms 4564 KB Output is correct
19 Correct 9 ms 4588 KB Output is correct
20 Correct 11 ms 4564 KB Output is correct
21 Correct 13 ms 4564 KB Output is correct
22 Correct 13 ms 4580 KB Output is correct
23 Correct 12 ms 4520 KB Output is correct
24 Correct 25 ms 15764 KB Output is correct
25 Correct 24 ms 15684 KB Output is correct
26 Correct 29 ms 15700 KB Output is correct
27 Correct 24 ms 15716 KB Output is correct
28 Correct 25 ms 15696 KB Output is correct
29 Correct 25 ms 15704 KB Output is correct
30 Correct 9 ms 4928 KB Output is correct
31 Correct 14 ms 8020 KB Output is correct
32 Correct 24 ms 14200 KB Output is correct
33 Correct 27 ms 15700 KB Output is correct
34 Correct 2 ms 1748 KB Output is correct
35 Correct 5 ms 3412 KB Output is correct
36 Correct 13 ms 7964 KB Output is correct
37 Correct 29 ms 15652 KB Output is correct
38 Correct 39 ms 15692 KB Output is correct
39 Correct 35 ms 15692 KB Output is correct
40 Correct 34 ms 15752 KB Output is correct
41 Correct 24 ms 15752 KB Output is correct
42 Correct 23 ms 8044 KB Output is correct
43 Correct 5 ms 2376 KB Output is correct
44 Correct 17 ms 8060 KB Output is correct
45 Correct 5 ms 2388 KB Output is correct
46 Correct 5 ms 2460 KB Output is correct
47 Correct 5 ms 2360 KB Output is correct
48 Correct 7 ms 2388 KB Output is correct
49 Correct 21 ms 8084 KB Output is correct
50 Correct 17 ms 8016 KB Output is correct
51 Correct 18 ms 8020 KB Output is correct
52 Correct 37 ms 15692 KB Output is correct
53 Correct 37 ms 15700 KB Output is correct
54 Correct 9 ms 4488 KB Output is correct
55 Correct 9 ms 4584 KB Output is correct
56 Correct 25 ms 14184 KB Output is correct
57 Correct 29 ms 15716 KB Output is correct
58 Correct 31 ms 15700 KB Output is correct
59 Correct 35 ms 15960 KB Output is correct
60 Correct 31 ms 15760 KB Output is correct
61 Correct 33 ms 17228 KB Output is correct
62 Correct 18 ms 16724 KB Output is correct
63 Correct 24 ms 15828 KB Output is correct
64 Correct 25 ms 15868 KB Output is correct

Subtask #5
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 244 KB Output is correct
7 Correct 0 ms 292 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 288 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 296 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 292 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 292 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 596 KB Output is correct
35 Correct 1 ms 596 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 304 KB Output is correct
38 Correct 1 ms 548 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 1 ms 596 KB Output is correct
41 Correct 1 ms 596 KB Output is correct
42 Correct 1 ms 596 KB Output is correct
43 Correct 1 ms 596 KB Output is correct
44 Correct 1 ms 980 KB Output is correct
45 Correct 1 ms 596 KB Output is correct
46 Correct 1 ms 728 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 0 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 0 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 596 KB Output is correct
54 Correct 1 ms 548 KB Output is correct
55 Correct 0 ms 340 KB Output is correct
56 Correct 0 ms 340 KB Output is correct
57 Correct 1 ms 596 KB Output is correct
58 Correct 1 ms 596 KB Output is correct
59 Correct 1 ms 724 KB Output is correct
60 Correct 1 ms 596 KB Output is correct
61 Correct 1 ms 596 KB Output is correct
62 Correct 1 ms 556 KB Output is correct
63 Correct 1 ms 596 KB Output is correct
64 Correct 1 ms 468 KB Output is correct
65 Correct 1 ms 468 KB Output is correct
66 Correct 18 ms 7972 KB Output is correct
67 Correct 5 ms 2388 KB Output is correct
68 Correct 18 ms 8040 KB Output is correct
69 Correct 5 ms 2388 KB Output is correct
70 Correct 18 ms 7956 KB Output is correct
71 Correct 23 ms 8020 KB Output is correct
72 Correct 20 ms 7924 KB Output is correct
73 Correct 17 ms 8020 KB Output is correct
74 Correct 17 ms 8020 KB Output is correct
75 Correct 17 ms 8004 KB Output is correct
76 Correct 37 ms 15752 KB Output is correct
77 Correct 37 ms 15628 KB Output is correct
78 Correct 37 ms 15680 KB Output is correct
79 Correct 35 ms 15656 KB Output is correct
80 Correct 9 ms 4564 KB Output is correct
81 Correct 9 ms 4600 KB Output is correct
82 Correct 9 ms 4564 KB Output is correct
83 Correct 9 ms 4564 KB Output is correct
84 Correct 9 ms 4588 KB Output is correct
85 Correct 11 ms 4564 KB Output is correct
86 Correct 13 ms 4564 KB Output is correct
87 Correct 13 ms 4580 KB Output is correct
88 Correct 12 ms 4520 KB Output is correct
89 Correct 25 ms 15764 KB Output is correct
90 Correct 24 ms 15684 KB Output is correct
91 Correct 29 ms 15700 KB Output is correct
92 Correct 24 ms 15716 KB Output is correct
93 Correct 25 ms 15696 KB Output is correct
94 Correct 25 ms 15704 KB Output is correct
95 Correct 9 ms 4928 KB Output is correct
96 Correct 14 ms 8020 KB Output is correct
97 Correct 24 ms 14200 KB Output is correct
98 Correct 27 ms 15700 KB Output is correct
99 Correct 2 ms 1748 KB Output is correct
100 Correct 5 ms 3412 KB Output is correct
101 Correct 13 ms 7964 KB Output is correct
102 Correct 29 ms 15652 KB Output is correct
103 Correct 39 ms 15692 KB Output is correct
104 Correct 35 ms 15692 KB Output is correct
105 Correct 34 ms 15752 KB Output is correct
106 Correct 24 ms 15752 KB Output is correct
107 Correct 23 ms 8044 KB Output is correct
108 Correct 5 ms 2376 KB Output is correct
109 Correct 17 ms 8060 KB Output is correct
110 Correct 5 ms 2388 KB Output is correct
111 Correct 5 ms 2460 KB Output is correct
112 Correct 5 ms 2360 KB Output is correct
113 Correct 7 ms 2388 KB Output is correct
114 Correct 21 ms 8084 KB Output is correct
115 Correct 17 ms 8016 KB Output is correct
116 Correct 18 ms 8020 KB Output is correct
117 Correct 37 ms 15692 KB Output is correct
118 Correct 37 ms 15700 KB Output is correct
119 Correct 9 ms 4488 KB Output is correct
120 Correct 9 ms 4584 KB Output is correct
121 Correct 25 ms 14184 KB Output is correct
122 Correct 29 ms 15716 KB Output is correct
123 Correct 31 ms 15700 KB Output is correct
124 Correct 35 ms 15960 KB Output is correct
125 Correct 31 ms 15760 KB Output is correct
126 Correct 33 ms 17228 KB Output is correct
127 Correct 18 ms 16724 KB Output is correct
128 Correct 24 ms 15828 KB Output is correct
129 Correct 25 ms 15868 KB Output is correct
130 Correct 0 ms 340 KB Output is correct
131 Correct 0 ms 340 KB Output is correct
132 Correct 0 ms 340 KB Output is correct
133 Correct 38 ms 15960 KB Output is correct
134 Correct 37 ms 15944 KB Output is correct
135 Correct 40 ms 15960 KB Output is correct
136 Correct 9 ms 5044 KB Output is correct
137 Correct 9 ms 5076 KB Output is correct
138 Correct 9 ms 5076 KB Output is correct
139 Correct 9 ms 5088 KB Output is correct
140 Correct 10 ms 5076 KB Output is correct
141 Correct 10 ms 5080 KB Output is correct
142 Correct 37 ms 16288 KB Output is correct
143 Correct 36 ms 15976 KB Output is correct
144 Correct 28 ms 16108 KB Output is correct
145 Correct 25 ms 14548 KB Output is correct
146 Correct 31 ms 16372 KB Output is correct
147 Correct 37 ms 18764 KB Output is correct
148 Correct 46 ms 26868 KB Output is correct
149 Incorrect 51 ms 30036 KB Output isn't correct
150 Halted 0 ms 0 KB -