Submission #307307

# Submission time Handle Problem Language Result Execution time Memory
307307 2020-09-27T15:42:51 Z zoember Traffic (IOI10_traffic) C++11
100 / 100
1279 ms 168440 KB
#include <bits/stdc++.h>
using namespace std;
#define ll long long

const int MAXN = 1e6, MAXN2 = 2e9+1;
int total = 0, ans = MAXN2;
vector<int> adj[MAXN], biggest(MAXN, 0), children(MAXN, 0);

void dfs(int vertex, int parent, int p[]) {
	for(int next: adj[vertex]) {
		if(next != parent) {
			dfs(next, vertex, p);
			children[vertex] += children[next];
			biggest[vertex] = max(children[next], biggest[vertex]);
		}
	}
	biggest[vertex] = max(biggest[vertex], total-p[vertex]-children[vertex]);
	children[vertex] += p[vertex];
}

int LocateCentre(int n, int p[], int s[], int d[]) {
	for(int i=0; i<(n-1); i++) {
		adj[s[i]].push_back(d[i]);
		adj[d[i]].push_back(s[i]);
	}
	for(int i=0; i<n; i++) {
		total += p[i];
	}
	dfs(0, -1, p);
	int res = 0;
	for(int i=0; i<n; i++) {
		if(biggest[i] < ans) {
			res = i;
			ans = biggest[i];
		}
	}
	return res;
}
# Verdict Execution time Memory Grader output
1 Correct 23 ms 31612 KB Output is correct
2 Correct 21 ms 31616 KB Output is correct
3 Correct 22 ms 31744 KB Output is correct
4 Correct 23 ms 31616 KB Output is correct
5 Correct 22 ms 31616 KB Output is correct
6 Correct 22 ms 31616 KB Output is correct
7 Correct 22 ms 31616 KB Output is correct
8 Correct 21 ms 31616 KB Output is correct
9 Correct 22 ms 31616 KB Output is correct
10 Correct 22 ms 31616 KB Output is correct
11 Correct 22 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 21 ms 31616 KB Output is correct
14 Correct 21 ms 31608 KB Output is correct
15 Correct 22 ms 31744 KB Output is correct
16 Correct 22 ms 31616 KB Output is correct
17 Correct 22 ms 31616 KB Output is correct
18 Correct 22 ms 31616 KB Output is correct
19 Correct 22 ms 31616 KB Output is correct
20 Correct 22 ms 31616 KB Output is correct
21 Correct 23 ms 31736 KB Output is correct
22 Correct 23 ms 31616 KB Output is correct
23 Correct 22 ms 31616 KB Output is correct
24 Correct 22 ms 31612 KB Output is correct
25 Correct 22 ms 31608 KB Output is correct
26 Correct 22 ms 31740 KB Output is correct
27 Correct 22 ms 31744 KB Output is correct
28 Correct 22 ms 31744 KB Output is correct
29 Correct 22 ms 31744 KB Output is correct
30 Correct 22 ms 31744 KB Output is correct
31 Correct 22 ms 31736 KB Output is correct
32 Correct 23 ms 31744 KB Output is correct
33 Correct 22 ms 31744 KB Output is correct
34 Correct 22 ms 31744 KB Output is correct
35 Correct 24 ms 31744 KB Output is correct
36 Correct 24 ms 31744 KB Output is correct
37 Correct 22 ms 31744 KB Output is correct
38 Correct 23 ms 31736 KB Output is correct
39 Correct 23 ms 31744 KB Output is correct
40 Correct 23 ms 31736 KB Output is correct
41 Correct 22 ms 31744 KB Output is correct
42 Correct 22 ms 31872 KB Output is correct
43 Correct 22 ms 31616 KB Output is correct
44 Correct 22 ms 31616 KB Output is correct
45 Correct 22 ms 31688 KB Output is correct
46 Correct 24 ms 31616 KB Output is correct
47 Correct 22 ms 31616 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 23 ms 31612 KB Output is correct
2 Correct 21 ms 31616 KB Output is correct
3 Correct 22 ms 31744 KB Output is correct
4 Correct 23 ms 31616 KB Output is correct
5 Correct 22 ms 31616 KB Output is correct
6 Correct 22 ms 31616 KB Output is correct
7 Correct 22 ms 31616 KB Output is correct
8 Correct 21 ms 31616 KB Output is correct
9 Correct 22 ms 31616 KB Output is correct
10 Correct 22 ms 31616 KB Output is correct
11 Correct 22 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 21 ms 31616 KB Output is correct
14 Correct 21 ms 31608 KB Output is correct
15 Correct 22 ms 31744 KB Output is correct
16 Correct 22 ms 31616 KB Output is correct
17 Correct 22 ms 31616 KB Output is correct
18 Correct 22 ms 31616 KB Output is correct
19 Correct 22 ms 31616 KB Output is correct
20 Correct 22 ms 31616 KB Output is correct
21 Correct 23 ms 31736 KB Output is correct
22 Correct 23 ms 31616 KB Output is correct
23 Correct 22 ms 31616 KB Output is correct
24 Correct 22 ms 31612 KB Output is correct
25 Correct 22 ms 31608 KB Output is correct
26 Correct 22 ms 31740 KB Output is correct
27 Correct 22 ms 31744 KB Output is correct
28 Correct 22 ms 31744 KB Output is correct
29 Correct 22 ms 31744 KB Output is correct
30 Correct 22 ms 31744 KB Output is correct
31 Correct 22 ms 31736 KB Output is correct
32 Correct 23 ms 31744 KB Output is correct
33 Correct 22 ms 31744 KB Output is correct
34 Correct 22 ms 31744 KB Output is correct
35 Correct 24 ms 31744 KB Output is correct
36 Correct 24 ms 31744 KB Output is correct
37 Correct 22 ms 31744 KB Output is correct
38 Correct 23 ms 31736 KB Output is correct
39 Correct 23 ms 31744 KB Output is correct
40 Correct 23 ms 31736 KB Output is correct
41 Correct 22 ms 31744 KB Output is correct
42 Correct 22 ms 31872 KB Output is correct
43 Correct 22 ms 31616 KB Output is correct
44 Correct 22 ms 31616 KB Output is correct
45 Correct 22 ms 31688 KB Output is correct
46 Correct 24 ms 31616 KB Output is correct
47 Correct 22 ms 31616 KB Output is correct
48 Correct 22 ms 31616 KB Output is correct
49 Correct 22 ms 31616 KB Output is correct
50 Correct 22 ms 31616 KB Output is correct
51 Correct 23 ms 31616 KB Output is correct
52 Correct 22 ms 31776 KB Output is correct
53 Correct 22 ms 31616 KB Output is correct
54 Correct 22 ms 31608 KB Output is correct
55 Correct 23 ms 31616 KB Output is correct
56 Correct 22 ms 31616 KB Output is correct
57 Correct 21 ms 31616 KB Output is correct
58 Correct 22 ms 31616 KB Output is correct
59 Correct 25 ms 31744 KB Output is correct
60 Correct 22 ms 31616 KB Output is correct
61 Correct 22 ms 31636 KB Output is correct
62 Correct 22 ms 31616 KB Output is correct
63 Correct 21 ms 31616 KB Output is correct
64 Correct 22 ms 31616 KB Output is correct
65 Correct 22 ms 31616 KB Output is correct
66 Correct 23 ms 31616 KB Output is correct
67 Correct 22 ms 31616 KB Output is correct
68 Correct 48 ms 37752 KB Output is correct
69 Correct 81 ms 43768 KB Output is correct
70 Correct 22 ms 31744 KB Output is correct
71 Correct 104 ms 49912 KB Output is correct
72 Correct 128 ms 55928 KB Output is correct
73 Correct 155 ms 62072 KB Output is correct
74 Correct 177 ms 68088 KB Output is correct
75 Correct 222 ms 74104 KB Output is correct
76 Correct 233 ms 80120 KB Output is correct
77 Correct 270 ms 86264 KB Output is correct
78 Correct 281 ms 92324 KB Output is correct
79 Correct 310 ms 98412 KB Output is correct
80 Correct 334 ms 104440 KB Output is correct
81 Correct 22 ms 31616 KB Output is correct
82 Correct 363 ms 110584 KB Output is correct
83 Correct 395 ms 116856 KB Output is correct
84 Correct 420 ms 122744 KB Output is correct
85 Correct 447 ms 129016 KB Output is correct
86 Correct 475 ms 134904 KB Output is correct
87 Correct 506 ms 140792 KB Output is correct
88 Correct 529 ms 147064 KB Output is correct
89 Correct 548 ms 152952 KB Output is correct
90 Correct 22 ms 31616 KB Output is correct
91 Correct 22 ms 31608 KB Output is correct
92 Correct 22 ms 31616 KB Output is correct
93 Correct 22 ms 31616 KB Output is correct
94 Correct 22 ms 31744 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 23 ms 31612 KB Output is correct
2 Correct 21 ms 31616 KB Output is correct
3 Correct 22 ms 31744 KB Output is correct
4 Correct 23 ms 31616 KB Output is correct
5 Correct 22 ms 31616 KB Output is correct
6 Correct 22 ms 31616 KB Output is correct
7 Correct 22 ms 31616 KB Output is correct
8 Correct 21 ms 31616 KB Output is correct
9 Correct 22 ms 31616 KB Output is correct
10 Correct 22 ms 31616 KB Output is correct
11 Correct 22 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 21 ms 31616 KB Output is correct
14 Correct 21 ms 31608 KB Output is correct
15 Correct 22 ms 31744 KB Output is correct
16 Correct 22 ms 31616 KB Output is correct
17 Correct 22 ms 31616 KB Output is correct
18 Correct 22 ms 31616 KB Output is correct
19 Correct 22 ms 31616 KB Output is correct
20 Correct 22 ms 31616 KB Output is correct
21 Correct 23 ms 31736 KB Output is correct
22 Correct 23 ms 31616 KB Output is correct
23 Correct 22 ms 31616 KB Output is correct
24 Correct 22 ms 31612 KB Output is correct
25 Correct 22 ms 31608 KB Output is correct
26 Correct 22 ms 31740 KB Output is correct
27 Correct 22 ms 31744 KB Output is correct
28 Correct 22 ms 31744 KB Output is correct
29 Correct 22 ms 31744 KB Output is correct
30 Correct 22 ms 31744 KB Output is correct
31 Correct 22 ms 31736 KB Output is correct
32 Correct 23 ms 31744 KB Output is correct
33 Correct 22 ms 31744 KB Output is correct
34 Correct 22 ms 31744 KB Output is correct
35 Correct 24 ms 31744 KB Output is correct
36 Correct 24 ms 31744 KB Output is correct
37 Correct 22 ms 31744 KB Output is correct
38 Correct 23 ms 31736 KB Output is correct
39 Correct 23 ms 31744 KB Output is correct
40 Correct 23 ms 31736 KB Output is correct
41 Correct 22 ms 31744 KB Output is correct
42 Correct 22 ms 31872 KB Output is correct
43 Correct 22 ms 31616 KB Output is correct
44 Correct 22 ms 31616 KB Output is correct
45 Correct 22 ms 31688 KB Output is correct
46 Correct 24 ms 31616 KB Output is correct
47 Correct 22 ms 31616 KB Output is correct
48 Correct 22 ms 31608 KB Output is correct
49 Correct 22 ms 31616 KB Output is correct
50 Correct 21 ms 31648 KB Output is correct
51 Correct 22 ms 31656 KB Output is correct
52 Correct 22 ms 31616 KB Output is correct
53 Correct 22 ms 31720 KB Output is correct
54 Correct 22 ms 31616 KB Output is correct
55 Correct 22 ms 31608 KB Output is correct
56 Correct 22 ms 31616 KB Output is correct
57 Correct 22 ms 31616 KB Output is correct
58 Correct 23 ms 31616 KB Output is correct
59 Correct 22 ms 31608 KB Output is correct
60 Correct 22 ms 31616 KB Output is correct
61 Correct 22 ms 31616 KB Output is correct
62 Correct 22 ms 31744 KB Output is correct
63 Correct 22 ms 31744 KB Output is correct
64 Correct 23 ms 31616 KB Output is correct
65 Correct 23 ms 31616 KB Output is correct
66 Correct 23 ms 31616 KB Output is correct
67 Correct 22 ms 31616 KB Output is correct
68 Correct 22 ms 31616 KB Output is correct
69 Correct 23 ms 31616 KB Output is correct
70 Correct 22 ms 31616 KB Output is correct
71 Correct 22 ms 31616 KB Output is correct
72 Correct 23 ms 31744 KB Output is correct
73 Correct 22 ms 31616 KB Output is correct
74 Correct 22 ms 31616 KB Output is correct
75 Correct 22 ms 31612 KB Output is correct
76 Correct 23 ms 31616 KB Output is correct
77 Correct 22 ms 31744 KB Output is correct
78 Correct 22 ms 31736 KB Output is correct
79 Correct 22 ms 31744 KB Output is correct
80 Correct 23 ms 31744 KB Output is correct
81 Correct 22 ms 31616 KB Output is correct
82 Correct 22 ms 31736 KB Output is correct
83 Correct 22 ms 31744 KB Output is correct
84 Correct 22 ms 31744 KB Output is correct
85 Correct 23 ms 31744 KB Output is correct
86 Correct 22 ms 31744 KB Output is correct
87 Correct 23 ms 31736 KB Output is correct
88 Correct 23 ms 31744 KB Output is correct
89 Correct 23 ms 31744 KB Output is correct
90 Correct 23 ms 31744 KB Output is correct
91 Correct 22 ms 31744 KB Output is correct
92 Correct 22 ms 31744 KB Output is correct
93 Correct 23 ms 31744 KB Output is correct
94 Correct 23 ms 31744 KB Output is correct
95 Correct 22 ms 31744 KB Output is correct
96 Correct 22 ms 31608 KB Output is correct
97 Correct 22 ms 31616 KB Output is correct
98 Correct 22 ms 31616 KB Output is correct
99 Correct 21 ms 31616 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 23 ms 31612 KB Output is correct
2 Correct 21 ms 31616 KB Output is correct
3 Correct 22 ms 31744 KB Output is correct
4 Correct 23 ms 31616 KB Output is correct
5 Correct 22 ms 31616 KB Output is correct
6 Correct 22 ms 31616 KB Output is correct
7 Correct 22 ms 31616 KB Output is correct
8 Correct 21 ms 31616 KB Output is correct
9 Correct 22 ms 31616 KB Output is correct
10 Correct 22 ms 31616 KB Output is correct
11 Correct 22 ms 31616 KB Output is correct
12 Correct 21 ms 31616 KB Output is correct
13 Correct 21 ms 31616 KB Output is correct
14 Correct 21 ms 31608 KB Output is correct
15 Correct 22 ms 31744 KB Output is correct
16 Correct 22 ms 31616 KB Output is correct
17 Correct 22 ms 31616 KB Output is correct
18 Correct 22 ms 31616 KB Output is correct
19 Correct 22 ms 31616 KB Output is correct
20 Correct 22 ms 31616 KB Output is correct
21 Correct 23 ms 31736 KB Output is correct
22 Correct 23 ms 31616 KB Output is correct
23 Correct 22 ms 31616 KB Output is correct
24 Correct 22 ms 31612 KB Output is correct
25 Correct 22 ms 31608 KB Output is correct
26 Correct 22 ms 31740 KB Output is correct
27 Correct 22 ms 31744 KB Output is correct
28 Correct 22 ms 31744 KB Output is correct
29 Correct 22 ms 31744 KB Output is correct
30 Correct 22 ms 31744 KB Output is correct
31 Correct 22 ms 31736 KB Output is correct
32 Correct 23 ms 31744 KB Output is correct
33 Correct 22 ms 31744 KB Output is correct
34 Correct 22 ms 31744 KB Output is correct
35 Correct 24 ms 31744 KB Output is correct
36 Correct 24 ms 31744 KB Output is correct
37 Correct 22 ms 31744 KB Output is correct
38 Correct 23 ms 31736 KB Output is correct
39 Correct 23 ms 31744 KB Output is correct
40 Correct 23 ms 31736 KB Output is correct
41 Correct 22 ms 31744 KB Output is correct
42 Correct 22 ms 31872 KB Output is correct
43 Correct 22 ms 31616 KB Output is correct
44 Correct 22 ms 31616 KB Output is correct
45 Correct 22 ms 31688 KB Output is correct
46 Correct 24 ms 31616 KB Output is correct
47 Correct 22 ms 31616 KB Output is correct
48 Correct 22 ms 31616 KB Output is correct
49 Correct 22 ms 31616 KB Output is correct
50 Correct 22 ms 31616 KB Output is correct
51 Correct 23 ms 31616 KB Output is correct
52 Correct 22 ms 31776 KB Output is correct
53 Correct 22 ms 31616 KB Output is correct
54 Correct 22 ms 31608 KB Output is correct
55 Correct 23 ms 31616 KB Output is correct
56 Correct 22 ms 31616 KB Output is correct
57 Correct 21 ms 31616 KB Output is correct
58 Correct 22 ms 31616 KB Output is correct
59 Correct 25 ms 31744 KB Output is correct
60 Correct 22 ms 31616 KB Output is correct
61 Correct 22 ms 31636 KB Output is correct
62 Correct 22 ms 31616 KB Output is correct
63 Correct 21 ms 31616 KB Output is correct
64 Correct 22 ms 31616 KB Output is correct
65 Correct 22 ms 31616 KB Output is correct
66 Correct 23 ms 31616 KB Output is correct
67 Correct 22 ms 31616 KB Output is correct
68 Correct 48 ms 37752 KB Output is correct
69 Correct 81 ms 43768 KB Output is correct
70 Correct 22 ms 31744 KB Output is correct
71 Correct 104 ms 49912 KB Output is correct
72 Correct 128 ms 55928 KB Output is correct
73 Correct 155 ms 62072 KB Output is correct
74 Correct 177 ms 68088 KB Output is correct
75 Correct 222 ms 74104 KB Output is correct
76 Correct 233 ms 80120 KB Output is correct
77 Correct 270 ms 86264 KB Output is correct
78 Correct 281 ms 92324 KB Output is correct
79 Correct 310 ms 98412 KB Output is correct
80 Correct 334 ms 104440 KB Output is correct
81 Correct 22 ms 31616 KB Output is correct
82 Correct 363 ms 110584 KB Output is correct
83 Correct 395 ms 116856 KB Output is correct
84 Correct 420 ms 122744 KB Output is correct
85 Correct 447 ms 129016 KB Output is correct
86 Correct 475 ms 134904 KB Output is correct
87 Correct 506 ms 140792 KB Output is correct
88 Correct 529 ms 147064 KB Output is correct
89 Correct 548 ms 152952 KB Output is correct
90 Correct 22 ms 31616 KB Output is correct
91 Correct 22 ms 31608 KB Output is correct
92 Correct 22 ms 31616 KB Output is correct
93 Correct 22 ms 31616 KB Output is correct
94 Correct 22 ms 31744 KB Output is correct
95 Correct 22 ms 31608 KB Output is correct
96 Correct 22 ms 31616 KB Output is correct
97 Correct 21 ms 31648 KB Output is correct
98 Correct 22 ms 31656 KB Output is correct
99 Correct 22 ms 31616 KB Output is correct
100 Correct 22 ms 31720 KB Output is correct
101 Correct 22 ms 31616 KB Output is correct
102 Correct 22 ms 31608 KB Output is correct
103 Correct 22 ms 31616 KB Output is correct
104 Correct 22 ms 31616 KB Output is correct
105 Correct 23 ms 31616 KB Output is correct
106 Correct 22 ms 31608 KB Output is correct
107 Correct 22 ms 31616 KB Output is correct
108 Correct 22 ms 31616 KB Output is correct
109 Correct 22 ms 31744 KB Output is correct
110 Correct 22 ms 31744 KB Output is correct
111 Correct 23 ms 31616 KB Output is correct
112 Correct 23 ms 31616 KB Output is correct
113 Correct 23 ms 31616 KB Output is correct
114 Correct 22 ms 31616 KB Output is correct
115 Correct 22 ms 31616 KB Output is correct
116 Correct 23 ms 31616 KB Output is correct
117 Correct 22 ms 31616 KB Output is correct
118 Correct 22 ms 31616 KB Output is correct
119 Correct 23 ms 31744 KB Output is correct
120 Correct 22 ms 31616 KB Output is correct
121 Correct 22 ms 31616 KB Output is correct
122 Correct 22 ms 31612 KB Output is correct
123 Correct 23 ms 31616 KB Output is correct
124 Correct 22 ms 31744 KB Output is correct
125 Correct 22 ms 31736 KB Output is correct
126 Correct 22 ms 31744 KB Output is correct
127 Correct 23 ms 31744 KB Output is correct
128 Correct 22 ms 31616 KB Output is correct
129 Correct 22 ms 31736 KB Output is correct
130 Correct 22 ms 31744 KB Output is correct
131 Correct 22 ms 31744 KB Output is correct
132 Correct 23 ms 31744 KB Output is correct
133 Correct 22 ms 31744 KB Output is correct
134 Correct 23 ms 31736 KB Output is correct
135 Correct 23 ms 31744 KB Output is correct
136 Correct 23 ms 31744 KB Output is correct
137 Correct 23 ms 31744 KB Output is correct
138 Correct 22 ms 31744 KB Output is correct
139 Correct 22 ms 31744 KB Output is correct
140 Correct 23 ms 31744 KB Output is correct
141 Correct 23 ms 31744 KB Output is correct
142 Correct 22 ms 31744 KB Output is correct
143 Correct 22 ms 31608 KB Output is correct
144 Correct 22 ms 31616 KB Output is correct
145 Correct 22 ms 31616 KB Output is correct
146 Correct 21 ms 31616 KB Output is correct
147 Correct 22 ms 31608 KB Output is correct
148 Correct 22 ms 31616 KB Output is correct
149 Correct 22 ms 31616 KB Output is correct
150 Correct 22 ms 31708 KB Output is correct
151 Correct 22 ms 31616 KB Output is correct
152 Correct 22 ms 31616 KB Output is correct
153 Correct 22 ms 31616 KB Output is correct
154 Correct 22 ms 31616 KB Output is correct
155 Correct 22 ms 31744 KB Output is correct
156 Correct 22 ms 31616 KB Output is correct
157 Correct 22 ms 31608 KB Output is correct
158 Correct 23 ms 31616 KB Output is correct
159 Correct 22 ms 31616 KB Output is correct
160 Correct 22 ms 31616 KB Output is correct
161 Correct 22 ms 31616 KB Output is correct
162 Correct 22 ms 31616 KB Output is correct
163 Correct 22 ms 31616 KB Output is correct
164 Correct 22 ms 31616 KB Output is correct
165 Correct 22 ms 31616 KB Output is correct
166 Correct 22 ms 31616 KB Output is correct
167 Correct 22 ms 31616 KB Output is correct
168 Correct 22 ms 31616 KB Output is correct
169 Correct 22 ms 31616 KB Output is correct
170 Correct 22 ms 31616 KB Output is correct
171 Correct 56 ms 34680 KB Output is correct
172 Correct 104 ms 37752 KB Output is correct
173 Correct 158 ms 40824 KB Output is correct
174 Correct 226 ms 44152 KB Output is correct
175 Correct 282 ms 46968 KB Output is correct
176 Correct 352 ms 50040 KB Output is correct
177 Correct 413 ms 53240 KB Output is correct
178 Correct 481 ms 56184 KB Output is correct
179 Correct 546 ms 59384 KB Output is correct
180 Correct 22 ms 31616 KB Output is correct
181 Correct 618 ms 62328 KB Output is correct
182 Correct 674 ms 65400 KB Output is correct
183 Correct 728 ms 68600 KB Output is correct
184 Correct 793 ms 71672 KB Output is correct
185 Correct 871 ms 74616 KB Output is correct
186 Correct 945 ms 77816 KB Output is correct
187 Correct 1014 ms 80888 KB Output is correct
188 Correct 1077 ms 84088 KB Output is correct
189 Correct 1143 ms 87052 KB Output is correct
190 Correct 1207 ms 89976 KB Output is correct
191 Correct 21 ms 31616 KB Output is correct
192 Correct 1279 ms 93048 KB Output is correct
193 Correct 268 ms 99960 KB Output is correct
194 Correct 538 ms 168440 KB Output is correct
195 Correct 21 ms 31616 KB Output is correct
196 Correct 22 ms 31608 KB Output is correct
197 Correct 21 ms 31744 KB Output is correct
198 Correct 21 ms 31616 KB Output is correct