oj.uz

답안 #1013565

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1013565 2024-07-03T16:31:04 Z rainboy Jobs (BOI24_jobs) C
100 / 100
 201 ms 52052 KB 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define N	300000
#define N_	(1 << 19)	/* N_ = pow2(ceil(log2(N + 1))) */

int pp[N + 1], *ej[N + 1], eo[N + 1]; long long xx[N + 1], yy[N + 1];

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;
}

int ta[N + 1], tb[N + 1];

void dfs1(int i) {
	static int t_;
	int o;

	ta[i] = t_++;
	for (o = eo[i]; o--; ) {
		int j = ej[i][o];

		dfs1(j);
	}
	tb[i] = t_;
}

int st[N_ * 2], n_;

int min_(int i, int j) { return j == -1 || i != -1 && xx[i] < xx[j] ? i : j; }

void pul(int i) {
	st[i] = min_(st[i << 1 | 0], st[i << 1 | 1]);
}

void update(int i, int i_) {
	st[i += n_] = i_;
	while (i > 1)
		pul(i >>= 1);
}

int query(int l, int r) {
	int i_ = -1;

	for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1) {
		if ((l & 1) == 1)
			i_ = min_(i_, st[l++]);
		if ((r & 1) == 0)
			i_ = min_(i_, st[r--]);
	}
	return i_;
}

void dfs2(int i) {
	int o;

	for (o = eo[i]; o--; ) {
		int j = ej[i][o];

		dfs2(j);
	}
	if (yy[i] < 0)
		xx[i] = -yy[i], yy[i] = 0;
	while (1) {
		int j = query(ta[i], tb[i]);

		if (yy[i] <= xx[i]) {
			if (j == -1)
				break;
			update(ta[j], -1);
			if (yy[i] >= xx[j])
				yy[i] += yy[j] - xx[j];
			else
				xx[i] += xx[j] - yy[i], yy[i] = yy[j];
		} else {
			if (j == -1 || yy[i] < xx[j]) {
				update(ta[i], i);
				break;
			}
			update(ta[j], -1);
			yy[i] += yy[j] - xx[j];
		}
	}
}

int main() {
	int n, i, j;
	long long y;

	scanf("%d%lld", &n, &y);
	for (i = 0; i <= n; i++)
		ej[i] = (int *) malloc(2 * sizeof *ej[i]);
	yy[0] = y;
	for (j = 1; j <= n; j++) {
		scanf("%lld%d", &yy[j], &i);
		append(i, j);
	}
	dfs1(0);
	n_ = 1;
	while (n_ <= n)
		n_ <<= 1;
	memset(st, -1, n_ * 2 * sizeof *st);
	dfs2(0);
	printf("%lld\n", yy[0] - y);
	return 0;
}

Compilation message

Main.c: In function 'append':
Main.c:13:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   13 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
Main.c: In function 'min_':
Main.c:35:52: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   35 | int min_(int i, int j) { return j == -1 || i != -1 && xx[i] < xx[j] ? i : j; }
      |                                            ~~~~~~~~^~~~~~~~~~~~~~~~
Main.c: In function 'main':
Main.c:95:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |  scanf("%d%lld", &n, &y);
      |  ^~~~~~~~~~~~~~~~~~~~~~~
Main.c:100:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
  100 |   scanf("%lld%d", &yy[j], &i);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 161 ms 28244 KB Output is correct
2 Correct 164 ms 29008 KB Output is correct
3 Correct 163 ms 28500 KB Output is correct
4 Correct 127 ms 36704 KB Output is correct
5 Correct 131 ms 40072 KB Output is correct
6 Correct 124 ms 18008 KB Output is correct
7 Correct 157 ms 29036 KB Output is correct
8 Correct 171 ms 29264 KB Output is correct
9 Correct 143 ms 37716 KB Output is correct
10 Correct 142 ms 39852 KB Output is correct
11 Correct 170 ms 29268 KB Output is correct
12 Correct 134 ms 23120 KB Output is correct
13 Correct 176 ms 29392 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 572 KB Output is correct
12 Correct 1 ms 700 KB Output is correct
13 Correct 2 ms 580 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 1 ms 568 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 616 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 1 ms 852 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 572 KB Output is correct
12 Correct 1 ms 700 KB Output is correct
13 Correct 2 ms 580 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 1 ms 568 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 616 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 1 ms 852 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 129 ms 28240 KB Output is correct
30 Correct 136 ms 28368 KB Output is correct
31 Correct 148 ms 28184 KB Output is correct
32 Correct 146 ms 51800 KB Output is correct
33 Correct 157 ms 40272 KB Output is correct
34 Correct 169 ms 36176 KB Output is correct
35 Correct 73 ms 15132 KB Output is correct
36 Correct 135 ms 33448 KB Output is correct
37 Correct 145 ms 29344 KB Output is correct
38 Correct 149 ms 51824 KB Output is correct
39 Correct 144 ms 41924 KB Output is correct
40 Correct 138 ms 32920 KB Output is correct
41 Correct 122 ms 29008 KB Output is correct
42 Correct 52 ms 18516 KB Output is correct
43 Correct 123 ms 36176 KB Output is correct
44 Correct 140 ms 52040 KB Output is correct
45 Correct 142 ms 42064 KB Output is correct
46 Correct 133 ms 36180 KB Output is correct
47 Correct 131 ms 28940 KB Output is correct
48 Correct 117 ms 29268 KB Output is correct
49 Correct 130 ms 28920 KB Output is correct
50 Correct 145 ms 52052 KB Output is correct
51 Correct 98 ms 30600 KB Output is correct
52 Correct 129 ms 32340 KB Output is correct
53 Correct 94 ms 25684 KB Output is correct
54 Correct 118 ms 28452 KB Output is correct
55 Correct 122 ms 29008 KB Output is correct
56 Correct 143 ms 52020 KB Output is correct
57 Correct 148 ms 40276 KB Output is correct
58 Correct 131 ms 32336 KB Output is correct
59 Correct 139 ms 32568 KB Output is correct
60 Correct 96 ms 28460 KB Output is correct
61 Correct 126 ms 35764 KB Output is correct
62 Correct 164 ms 34160 KB Output is correct

Subtask #4
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 2 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 572 KB Output is correct
12 Correct 1 ms 700 KB Output is correct
13 Correct 2 ms 580 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 1 ms 568 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 616 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 1 ms 852 KB Output is correct
26 Correct 2 ms 600 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 1 ms 604 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 600 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 696 KB Output is correct
48 Correct 1 ms 604 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 604 KB Output is correct
52 Correct 1 ms 600 KB Output is correct
53 Correct 1 ms 600 KB Output is correct
54 Correct 1 ms 604 KB Output is correct

Subtask #5
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 161 ms 28244 KB Output is correct
2 Correct 164 ms 29008 KB Output is correct
3 Correct 163 ms 28500 KB Output is correct
4 Correct 127 ms 36704 KB Output is correct
5 Correct 131 ms 40072 KB Output is correct
6 Correct 124 ms 18008 KB Output is correct
7 Correct 157 ms 29036 KB Output is correct
8 Correct 171 ms 29264 KB Output is correct
9 Correct 143 ms 37716 KB Output is correct
10 Correct 142 ms 39852 KB Output is correct
11 Correct 170 ms 29268 KB Output is correct
12 Correct 134 ms 23120 KB Output is correct
13 Correct 176 ms 29392 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 2 ms 604 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 572 KB Output is correct
25 Correct 1 ms 700 KB Output is correct
26 Correct 2 ms 580 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 2 ms 604 KB Output is correct
31 Correct 1 ms 568 KB Output is correct
32 Correct 1 ms 600 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 1 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 1 ms 616 KB Output is correct
37 Correct 2 ms 604 KB Output is correct
38 Correct 1 ms 852 KB Output is correct
39 Correct 2 ms 600 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 129 ms 28240 KB Output is correct
43 Correct 136 ms 28368 KB Output is correct
44 Correct 148 ms 28184 KB Output is correct
45 Correct 146 ms 51800 KB Output is correct
46 Correct 157 ms 40272 KB Output is correct
47 Correct 169 ms 36176 KB Output is correct
48 Correct 73 ms 15132 KB Output is correct
49 Correct 135 ms 33448 KB Output is correct
50 Correct 145 ms 29344 KB Output is correct
51 Correct 149 ms 51824 KB Output is correct
52 Correct 144 ms 41924 KB Output is correct
53 Correct 138 ms 32920 KB Output is correct
54 Correct 122 ms 29008 KB Output is correct
55 Correct 52 ms 18516 KB Output is correct
56 Correct 123 ms 36176 KB Output is correct
57 Correct 140 ms 52040 KB Output is correct
58 Correct 142 ms 42064 KB Output is correct
59 Correct 133 ms 36180 KB Output is correct
60 Correct 131 ms 28940 KB Output is correct
61 Correct 117 ms 29268 KB Output is correct
62 Correct 130 ms 28920 KB Output is correct
63 Correct 145 ms 52052 KB Output is correct
64 Correct 98 ms 30600 KB Output is correct
65 Correct 129 ms 32340 KB Output is correct
66 Correct 94 ms 25684 KB Output is correct
67 Correct 118 ms 28452 KB Output is correct
68 Correct 122 ms 29008 KB Output is correct
69 Correct 143 ms 52020 KB Output is correct
70 Correct 148 ms 40276 KB Output is correct
71 Correct 131 ms 32336 KB Output is correct
72 Correct 139 ms 32568 KB Output is correct
73 Correct 96 ms 28460 KB Output is correct
74 Correct 126 ms 35764 KB Output is correct
75 Correct 164 ms 34160 KB Output is correct
76 Correct 1 ms 344 KB Output is correct
77 Correct 1 ms 604 KB Output is correct
78 Correct 1 ms 604 KB Output is correct
79 Correct 1 ms 604 KB Output is correct
80 Correct 1 ms 604 KB Output is correct
81 Correct 1 ms 604 KB Output is correct
82 Correct 1 ms 604 KB Output is correct
83 Correct 1 ms 604 KB Output is correct
84 Correct 1 ms 604 KB Output is correct
85 Correct 1 ms 604 KB Output is correct
86 Correct 1 ms 604 KB Output is correct
87 Correct 1 ms 600 KB Output is correct
88 Correct 1 ms 604 KB Output is correct
89 Correct 1 ms 604 KB Output is correct
90 Correct 1 ms 604 KB Output is correct
91 Correct 1 ms 604 KB Output is correct
92 Correct 1 ms 604 KB Output is correct
93 Correct 1 ms 604 KB Output is correct
94 Correct 1 ms 696 KB Output is correct
95 Correct 1 ms 604 KB Output is correct
96 Correct 1 ms 604 KB Output is correct
97 Correct 1 ms 604 KB Output is correct
98 Correct 1 ms 604 KB Output is correct
99 Correct 1 ms 600 KB Output is correct
100 Correct 1 ms 600 KB Output is correct
101 Correct 1 ms 604 KB Output is correct
102 Correct 165 ms 28956 KB Output is correct
103 Correct 201 ms 29012 KB Output is correct
104 Correct 144 ms 28976 KB Output is correct
105 Correct 121 ms 29088 KB Output is correct
106 Correct 131 ms 40072 KB Output is correct
107 Correct 133 ms 36388 KB Output is correct
108 Correct 168 ms 28896 KB Output is correct
109 Correct 86 ms 14932 KB Output is correct
110 Correct 152 ms 29012 KB Output is correct
111 Correct 151 ms 29012 KB Output is correct
112 Correct 145 ms 29552 KB Output is correct
113 Correct 125 ms 36176 KB Output is correct
114 Correct 142 ms 41040 KB Output is correct
115 Correct 77 ms 14832 KB Output is correct
116 Correct 168 ms 29008 KB Output is correct
117 Correct 135 ms 28756 KB Output is correct
118 Correct 164 ms 29700 KB Output is correct
119 Correct 138 ms 28496 KB Output is correct
120 Correct 125 ms 36688 KB Output is correct
121 Correct 143 ms 36556 KB Output is correct
122 Correct 154 ms 29008 KB Output is correct
123 Correct 192 ms 29308 KB Output is correct
124 Correct 134 ms 29008 KB Output is correct
125 Correct 181 ms 30184 KB Output is correct
126 Correct 139 ms 29288 KB Output is correct
127 Correct 71 ms 20564 KB Output is correct
128 Correct 52 ms 17464 KB Output is correct
129 Correct 194 ms 28564 KB Output is correct
130 Correct 156 ms 28804 KB Output is correct
131 Correct 144 ms 29268 KB Output is correct
132 Correct 151 ms 28804 KB Output is correct
133 Correct 159 ms 28500 KB Output is correct
134 Correct 127 ms 40272 KB Output is correct
135 Correct 131 ms 38484 KB Output is correct
136 Correct 187 ms 29388 KB Output is correct
137 Correct 165 ms 29008 KB Output is correct