Submission #412225

# Submission time Handle Problem Language Result Execution time Memory
412225 2021-05-26T15:51:09 Z rainboy Traffic (IOI10_traffic) C
100 / 100
845 ms 144052 KB
#include "traffic.h"
#include <stdlib.h>

#define N	1000000

int *ej[N], eo[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;
}

int sz[N], sum, c;

void dfs(int p, int i) {
	int o;

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

		if (j != p) {
			dfs(i, j);
			sz[i] += sz[j];
		}
	}
	if (sz[i] >= (sum + 1) / 2 && (c == -1 || sz[c] > sz[i]))
		c = i;
}

int LocateCentre(int n, int *aa, int *ii, int *jj) {
	int h, i;

	for (i = 0; i < n; i++)
		ej[i] = (int *) malloc(2 * sizeof *ej[i]);
	for (h = 0; h < n - 1; h++)
		append(ii[h], jj[h]), append(jj[h], ii[h]);
	sum = 0;
	for (i = 0; i < n; i++)
		sum += aa[i], sz[i] = aa[i];
	c = -1, dfs(-1, 0);
	return c;
}

Compilation message

traffic.c: In function 'append':
traffic.c:11:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   11 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 288 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 280 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 280 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 284 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 284 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 280 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 288 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 280 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 280 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 284 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 284 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 280 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 284 KB Output is correct
51 Correct 1 ms 280 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 1 ms 332 KB Output is correct
62 Correct 1 ms 284 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 1 ms 204 KB Output is correct
68 Correct 25 ms 7932 KB Output is correct
69 Correct 48 ms 15624 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 71 ms 23388 KB Output is correct
72 Correct 95 ms 31212 KB Output is correct
73 Correct 115 ms 38928 KB Output is correct
74 Correct 139 ms 46700 KB Output is correct
75 Correct 164 ms 54344 KB Output is correct
76 Correct 188 ms 61836 KB Output is correct
77 Correct 208 ms 68652 KB Output is correct
78 Correct 232 ms 75580 KB Output is correct
79 Correct 266 ms 82312 KB Output is correct
80 Correct 282 ms 89196 KB Output is correct
81 Correct 1 ms 204 KB Output is correct
82 Correct 304 ms 96076 KB Output is correct
83 Correct 326 ms 103024 KB Output is correct
84 Correct 350 ms 109984 KB Output is correct
85 Correct 374 ms 116684 KB Output is correct
86 Correct 400 ms 123460 KB Output is correct
87 Correct 427 ms 130428 KB Output is correct
88 Correct 435 ms 130608 KB Output is correct
89 Correct 477 ms 144052 KB Output is correct
90 Correct 1 ms 204 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 1 ms 204 KB Output is correct
93 Correct 1 ms 204 KB Output is correct
94 Correct 1 ms 204 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 288 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 280 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 280 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 284 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 284 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 280 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 280 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 284 KB Output is correct
64 Correct 1 ms 332 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 1 ms 332 KB Output is correct
68 Correct 1 ms 204 KB Output is correct
69 Correct 1 ms 204 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 332 KB Output is correct
72 Correct 1 ms 332 KB Output is correct
73 Correct 1 ms 332 KB Output is correct
74 Correct 1 ms 332 KB Output is correct
75 Correct 1 ms 332 KB Output is correct
76 Correct 1 ms 332 KB Output is correct
77 Correct 1 ms 332 KB Output is correct
78 Correct 1 ms 332 KB Output is correct
79 Correct 1 ms 332 KB Output is correct
80 Correct 1 ms 280 KB Output is correct
81 Correct 1 ms 284 KB Output is correct
82 Correct 1 ms 332 KB Output is correct
83 Correct 1 ms 332 KB Output is correct
84 Correct 1 ms 332 KB Output is correct
85 Correct 1 ms 332 KB Output is correct
86 Correct 1 ms 332 KB Output is correct
87 Correct 1 ms 288 KB Output is correct
88 Correct 2 ms 292 KB Output is correct
89 Correct 1 ms 332 KB Output is correct
90 Correct 1 ms 332 KB Output is correct
91 Correct 2 ms 332 KB Output is correct
92 Correct 2 ms 204 KB Output is correct
93 Correct 1 ms 332 KB Output is correct
94 Correct 1 ms 292 KB Output is correct
95 Correct 1 ms 460 KB Output is correct
96 Correct 1 ms 204 KB Output is correct
97 Correct 1 ms 280 KB Output is correct
98 Correct 1 ms 204 KB Output is correct
99 Correct 1 ms 204 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 288 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 1 ms 280 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 280 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 284 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 284 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 280 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 284 KB Output is correct
51 Correct 1 ms 280 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 1 ms 332 KB Output is correct
62 Correct 1 ms 284 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 204 KB Output is correct
67 Correct 1 ms 204 KB Output is correct
68 Correct 25 ms 7932 KB Output is correct
69 Correct 48 ms 15624 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 71 ms 23388 KB Output is correct
72 Correct 95 ms 31212 KB Output is correct
73 Correct 115 ms 38928 KB Output is correct
74 Correct 139 ms 46700 KB Output is correct
75 Correct 164 ms 54344 KB Output is correct
76 Correct 188 ms 61836 KB Output is correct
77 Correct 208 ms 68652 KB Output is correct
78 Correct 232 ms 75580 KB Output is correct
79 Correct 266 ms 82312 KB Output is correct
80 Correct 282 ms 89196 KB Output is correct
81 Correct 1 ms 204 KB Output is correct
82 Correct 304 ms 96076 KB Output is correct
83 Correct 326 ms 103024 KB Output is correct
84 Correct 350 ms 109984 KB Output is correct
85 Correct 374 ms 116684 KB Output is correct
86 Correct 400 ms 123460 KB Output is correct
87 Correct 427 ms 130428 KB Output is correct
88 Correct 435 ms 130608 KB Output is correct
89 Correct 477 ms 144052 KB Output is correct
90 Correct 1 ms 204 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 1 ms 204 KB Output is correct
93 Correct 1 ms 204 KB Output is correct
94 Correct 1 ms 204 KB Output is correct
95 Correct 1 ms 204 KB Output is correct
96 Correct 1 ms 204 KB Output is correct
97 Correct 1 ms 204 KB Output is correct
98 Correct 1 ms 204 KB Output is correct
99 Correct 1 ms 204 KB Output is correct
100 Correct 1 ms 280 KB Output is correct
101 Correct 1 ms 204 KB Output is correct
102 Correct 1 ms 204 KB Output is correct
103 Correct 1 ms 332 KB Output is correct
104 Correct 1 ms 332 KB Output is correct
105 Correct 1 ms 204 KB Output is correct
106 Correct 1 ms 204 KB Output is correct
107 Correct 1 ms 204 KB Output is correct
108 Correct 1 ms 204 KB Output is correct
109 Correct 1 ms 204 KB Output is correct
110 Correct 1 ms 284 KB Output is correct
111 Correct 1 ms 332 KB Output is correct
112 Correct 1 ms 332 KB Output is correct
113 Correct 1 ms 204 KB Output is correct
114 Correct 1 ms 332 KB Output is correct
115 Correct 1 ms 204 KB Output is correct
116 Correct 1 ms 204 KB Output is correct
117 Correct 1 ms 204 KB Output is correct
118 Correct 1 ms 332 KB Output is correct
119 Correct 1 ms 332 KB Output is correct
120 Correct 1 ms 332 KB Output is correct
121 Correct 1 ms 332 KB Output is correct
122 Correct 1 ms 332 KB Output is correct
123 Correct 1 ms 332 KB Output is correct
124 Correct 1 ms 332 KB Output is correct
125 Correct 1 ms 332 KB Output is correct
126 Correct 1 ms 332 KB Output is correct
127 Correct 1 ms 280 KB Output is correct
128 Correct 1 ms 284 KB Output is correct
129 Correct 1 ms 332 KB Output is correct
130 Correct 1 ms 332 KB Output is correct
131 Correct 1 ms 332 KB Output is correct
132 Correct 1 ms 332 KB Output is correct
133 Correct 1 ms 332 KB Output is correct
134 Correct 1 ms 288 KB Output is correct
135 Correct 2 ms 292 KB Output is correct
136 Correct 1 ms 332 KB Output is correct
137 Correct 1 ms 332 KB Output is correct
138 Correct 2 ms 332 KB Output is correct
139 Correct 2 ms 204 KB Output is correct
140 Correct 1 ms 332 KB Output is correct
141 Correct 1 ms 292 KB Output is correct
142 Correct 1 ms 460 KB Output is correct
143 Correct 1 ms 204 KB Output is correct
144 Correct 1 ms 280 KB Output is correct
145 Correct 1 ms 204 KB Output is correct
146 Correct 1 ms 204 KB Output is correct
147 Correct 1 ms 332 KB Output is correct
148 Correct 1 ms 204 KB Output is correct
149 Correct 1 ms 204 KB Output is correct
150 Correct 1 ms 204 KB Output is correct
151 Correct 1 ms 204 KB Output is correct
152 Correct 1 ms 332 KB Output is correct
153 Correct 1 ms 204 KB Output is correct
154 Correct 1 ms 204 KB Output is correct
155 Correct 1 ms 332 KB Output is correct
156 Correct 1 ms 204 KB Output is correct
157 Correct 1 ms 204 KB Output is correct
158 Correct 1 ms 204 KB Output is correct
159 Correct 1 ms 204 KB Output is correct
160 Correct 1 ms 204 KB Output is correct
161 Correct 1 ms 204 KB Output is correct
162 Correct 1 ms 332 KB Output is correct
163 Correct 1 ms 204 KB Output is correct
164 Correct 1 ms 204 KB Output is correct
165 Correct 1 ms 284 KB Output is correct
166 Correct 1 ms 204 KB Output is correct
167 Correct 1 ms 332 KB Output is correct
168 Correct 1 ms 204 KB Output is correct
169 Correct 1 ms 332 KB Output is correct
170 Correct 1 ms 332 KB Output is correct
171 Correct 26 ms 4036 KB Output is correct
172 Correct 53 ms 7968 KB Output is correct
173 Correct 118 ms 11884 KB Output is correct
174 Correct 128 ms 15732 KB Output is correct
175 Correct 168 ms 19748 KB Output is correct
176 Correct 201 ms 23620 KB Output is correct
177 Correct 255 ms 27540 KB Output is correct
178 Correct 297 ms 30996 KB Output is correct
179 Correct 337 ms 34116 KB Output is correct
180 Correct 1 ms 204 KB Output is correct
181 Correct 394 ms 36984 KB Output is correct
182 Correct 463 ms 40012 KB Output is correct
183 Correct 496 ms 42968 KB Output is correct
184 Correct 544 ms 46068 KB Output is correct
185 Correct 597 ms 48920 KB Output is correct
186 Correct 634 ms 52032 KB Output is correct
187 Correct 677 ms 54856 KB Output is correct
188 Correct 720 ms 57924 KB Output is correct
189 Correct 774 ms 60888 KB Output is correct
190 Correct 794 ms 57248 KB Output is correct
191 Correct 1 ms 204 KB Output is correct
192 Correct 845 ms 66764 KB Output is correct
193 Correct 221 ms 75456 KB Output is correct
194 Correct 436 ms 143928 KB Output is correct
195 Correct 1 ms 204 KB Output is correct
196 Correct 1 ms 224 KB Output is correct
197 Correct 1 ms 332 KB Output is correct
198 Correct 1 ms 204 KB Output is correct