oj.uz

답안 #404462

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
404462 2021-05-14T12:45:28 Z Drew_ Traffic (IOI10_traffic) C++17
100 / 100
 1131 ms 123652 KB 
#include "traffic.h"
#include <iostream>
#include <vector>
#include <functional>
using namespace std;

#define pb push_back
#define ll long long

const int MAX = 1e6 + 7;

ll sz[MAX];
vector<int> adj[MAX];

inline ll dfs(int node, int par)
{
	for (int to : adj[node])
		if (to != par)
			sz[node] += dfs(to, node);
	return sz[node];
}

int LocateCentre(int N, int P[], int S[], int D[])
{
	for (int i = 0; i < N-1; ++i)
		adj[S[i]].pb(D[i]), adj[D[i]].pb(S[i]);
	for (int i = 0; i < N; ++i)
		sz[i] = P[i];
	dfs(0, -1);

	int res = -1;
	ll best = 1e18;
	for (int node = 0; node < N; ++node)
	{
		ll tmp = 0;
		for (int to : adj[node])
		{
			ll ctr = sz[to];
			if (sz[to] > sz[node])
				ctr = sz[0] - sz[node];
			tmp = max(tmp, ctr);
		}

		if (best > tmp)
			best = tmp, res = node;
	}
	return res;
}

Subtask #1
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 23756 KB Output is correct
2 Correct 16 ms 23740 KB Output is correct
3 Correct 15 ms 23884 KB Output is correct
4 Correct 15 ms 23736 KB Output is correct
5 Correct 15 ms 23756 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 15 ms 23784 KB Output is correct
8 Correct 15 ms 23724 KB Output is correct
9 Correct 15 ms 23756 KB Output is correct
10 Correct 14 ms 23736 KB Output is correct
11 Correct 14 ms 23780 KB Output is correct
12 Correct 15 ms 23800 KB Output is correct
13 Correct 15 ms 23752 KB Output is correct
14 Correct 16 ms 23772 KB Output is correct
15 Correct 14 ms 23784 KB Output is correct
16 Correct 15 ms 23784 KB Output is correct
17 Correct 14 ms 23756 KB Output is correct
18 Correct 15 ms 23744 KB Output is correct
19 Correct 14 ms 23772 KB Output is correct
20 Correct 14 ms 23788 KB Output is correct
21 Correct 14 ms 23708 KB Output is correct
22 Correct 15 ms 23792 KB Output is correct
23 Correct 14 ms 23736 KB Output is correct
24 Correct 14 ms 23756 KB Output is correct
25 Correct 15 ms 23756 KB Output is correct
26 Correct 14 ms 23780 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 14 ms 23756 KB Output is correct
29 Correct 16 ms 23748 KB Output is correct
30 Correct 17 ms 23780 KB Output is correct
31 Correct 15 ms 23776 KB Output is correct
32 Correct 15 ms 23944 KB Output is correct
33 Correct 15 ms 23756 KB Output is correct
34 Correct 15 ms 23700 KB Output is correct
35 Correct 15 ms 23792 KB Output is correct
36 Correct 15 ms 23808 KB Output is correct
37 Correct 15 ms 23792 KB Output is correct
38 Correct 15 ms 23760 KB Output is correct
39 Correct 15 ms 23884 KB Output is correct
40 Correct 15 ms 23884 KB Output is correct
41 Correct 15 ms 23820 KB Output is correct
42 Correct 15 ms 23884 KB Output is correct
43 Correct 15 ms 23776 KB Output is correct
44 Correct 15 ms 23800 KB Output is correct
45 Correct 15 ms 23756 KB Output is correct
46 Correct 17 ms 23756 KB Output is correct
47 Correct 15 ms 23724 KB Output is correct

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 23756 KB Output is correct
2 Correct 16 ms 23740 KB Output is correct
3 Correct 15 ms 23884 KB Output is correct
4 Correct 15 ms 23736 KB Output is correct
5 Correct 15 ms 23756 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 15 ms 23784 KB Output is correct
8 Correct 15 ms 23724 KB Output is correct
9 Correct 15 ms 23756 KB Output is correct
10 Correct 14 ms 23736 KB Output is correct
11 Correct 14 ms 23780 KB Output is correct
12 Correct 15 ms 23800 KB Output is correct
13 Correct 15 ms 23752 KB Output is correct
14 Correct 16 ms 23772 KB Output is correct
15 Correct 14 ms 23784 KB Output is correct
16 Correct 15 ms 23784 KB Output is correct
17 Correct 14 ms 23756 KB Output is correct
18 Correct 15 ms 23744 KB Output is correct
19 Correct 14 ms 23772 KB Output is correct
20 Correct 14 ms 23788 KB Output is correct
21 Correct 14 ms 23708 KB Output is correct
22 Correct 15 ms 23792 KB Output is correct
23 Correct 14 ms 23736 KB Output is correct
24 Correct 14 ms 23756 KB Output is correct
25 Correct 15 ms 23756 KB Output is correct
26 Correct 14 ms 23780 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 14 ms 23756 KB Output is correct
29 Correct 16 ms 23748 KB Output is correct
30 Correct 17 ms 23780 KB Output is correct
31 Correct 15 ms 23776 KB Output is correct
32 Correct 15 ms 23944 KB Output is correct
33 Correct 15 ms 23756 KB Output is correct
34 Correct 15 ms 23700 KB Output is correct
35 Correct 15 ms 23792 KB Output is correct
36 Correct 15 ms 23808 KB Output is correct
37 Correct 15 ms 23792 KB Output is correct
38 Correct 15 ms 23760 KB Output is correct
39 Correct 15 ms 23884 KB Output is correct
40 Correct 15 ms 23884 KB Output is correct
41 Correct 15 ms 23820 KB Output is correct
42 Correct 15 ms 23884 KB Output is correct
43 Correct 15 ms 23776 KB Output is correct
44 Correct 15 ms 23800 KB Output is correct
45 Correct 15 ms 23756 KB Output is correct
46 Correct 17 ms 23756 KB Output is correct
47 Correct 15 ms 23724 KB Output is correct
48 Correct 15 ms 23780 KB Output is correct
49 Correct 15 ms 23756 KB Output is correct
50 Correct 17 ms 23784 KB Output is correct
51 Correct 15 ms 23808 KB Output is correct
52 Correct 17 ms 23712 KB Output is correct
53 Correct 15 ms 23776 KB Output is correct
54 Correct 15 ms 23788 KB Output is correct
55 Correct 15 ms 23756 KB Output is correct
56 Correct 15 ms 23784 KB Output is correct
57 Correct 15 ms 23784 KB Output is correct
58 Correct 15 ms 23700 KB Output is correct
59 Correct 15 ms 23756 KB Output is correct
60 Correct 15 ms 23720 KB Output is correct
61 Correct 15 ms 23720 KB Output is correct
62 Correct 15 ms 23756 KB Output is correct
63 Correct 15 ms 23796 KB Output is correct
64 Correct 15 ms 23756 KB Output is correct
65 Correct 15 ms 23784 KB Output is correct
66 Correct 15 ms 23780 KB Output is correct
67 Correct 15 ms 23792 KB Output is correct
68 Correct 38 ms 28732 KB Output is correct
69 Correct 62 ms 33660 KB Output is correct
70 Correct 15 ms 23756 KB Output is correct
71 Correct 83 ms 38656 KB Output is correct
72 Correct 109 ms 43636 KB Output is correct
73 Correct 129 ms 48720 KB Output is correct
74 Correct 153 ms 53700 KB Output is correct
75 Correct 174 ms 58684 KB Output is correct
76 Correct 207 ms 63672 KB Output is correct
77 Correct 223 ms 68704 KB Output is correct
78 Correct 243 ms 73776 KB Output is correct
79 Correct 274 ms 78820 KB Output is correct
80 Correct 291 ms 83748 KB Output is correct
81 Correct 15 ms 23792 KB Output is correct
82 Correct 312 ms 88816 KB Output is correct
83 Correct 343 ms 93816 KB Output is correct
84 Correct 363 ms 98840 KB Output is correct
85 Correct 383 ms 103724 KB Output is correct
86 Correct 462 ms 108796 KB Output is correct
87 Correct 436 ms 113848 KB Output is correct
88 Correct 456 ms 118720 KB Output is correct
89 Correct 484 ms 123652 KB Output is correct
90 Correct 16 ms 23792 KB Output is correct
91 Correct 16 ms 23740 KB Output is correct
92 Correct 15 ms 23756 KB Output is correct
93 Correct 16 ms 23692 KB Output is correct
94 Correct 14 ms 23688 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 23756 KB Output is correct
2 Correct 16 ms 23740 KB Output is correct
3 Correct 15 ms 23884 KB Output is correct
4 Correct 15 ms 23736 KB Output is correct
5 Correct 15 ms 23756 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 15 ms 23784 KB Output is correct
8 Correct 15 ms 23724 KB Output is correct
9 Correct 15 ms 23756 KB Output is correct
10 Correct 14 ms 23736 KB Output is correct
11 Correct 14 ms 23780 KB Output is correct
12 Correct 15 ms 23800 KB Output is correct
13 Correct 15 ms 23752 KB Output is correct
14 Correct 16 ms 23772 KB Output is correct
15 Correct 14 ms 23784 KB Output is correct
16 Correct 15 ms 23784 KB Output is correct
17 Correct 14 ms 23756 KB Output is correct
18 Correct 15 ms 23744 KB Output is correct
19 Correct 14 ms 23772 KB Output is correct
20 Correct 14 ms 23788 KB Output is correct
21 Correct 14 ms 23708 KB Output is correct
22 Correct 15 ms 23792 KB Output is correct
23 Correct 14 ms 23736 KB Output is correct
24 Correct 14 ms 23756 KB Output is correct
25 Correct 15 ms 23756 KB Output is correct
26 Correct 14 ms 23780 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 14 ms 23756 KB Output is correct
29 Correct 16 ms 23748 KB Output is correct
30 Correct 17 ms 23780 KB Output is correct
31 Correct 15 ms 23776 KB Output is correct
32 Correct 15 ms 23944 KB Output is correct
33 Correct 15 ms 23756 KB Output is correct
34 Correct 15 ms 23700 KB Output is correct
35 Correct 15 ms 23792 KB Output is correct
36 Correct 15 ms 23808 KB Output is correct
37 Correct 15 ms 23792 KB Output is correct
38 Correct 15 ms 23760 KB Output is correct
39 Correct 15 ms 23884 KB Output is correct
40 Correct 15 ms 23884 KB Output is correct
41 Correct 15 ms 23820 KB Output is correct
42 Correct 15 ms 23884 KB Output is correct
43 Correct 15 ms 23776 KB Output is correct
44 Correct 15 ms 23800 KB Output is correct
45 Correct 15 ms 23756 KB Output is correct
46 Correct 17 ms 23756 KB Output is correct
47 Correct 15 ms 23724 KB Output is correct
48 Correct 15 ms 23748 KB Output is correct
49 Correct 15 ms 23812 KB Output is correct
50 Correct 15 ms 23752 KB Output is correct
51 Correct 16 ms 23692 KB Output is correct
52 Correct 16 ms 23756 KB Output is correct
53 Correct 15 ms 23756 KB Output is correct
54 Correct 15 ms 23756 KB Output is correct
55 Correct 16 ms 23784 KB Output is correct
56 Correct 16 ms 23756 KB Output is correct
57 Correct 16 ms 23756 KB Output is correct
58 Correct 16 ms 23780 KB Output is correct
59 Correct 15 ms 23780 KB Output is correct
60 Correct 16 ms 23764 KB Output is correct
61 Correct 15 ms 23756 KB Output is correct
62 Correct 16 ms 23908 KB Output is correct
63 Correct 16 ms 23724 KB Output is correct
64 Correct 15 ms 23756 KB Output is correct
65 Correct 15 ms 23756 KB Output is correct
66 Correct 16 ms 23788 KB Output is correct
67 Correct 16 ms 23780 KB Output is correct
68 Correct 15 ms 23784 KB Output is correct
69 Correct 15 ms 23756 KB Output is correct
70 Correct 16 ms 23764 KB Output is correct
71 Correct 16 ms 23696 KB Output is correct
72 Correct 15 ms 23708 KB Output is correct
73 Correct 16 ms 23756 KB Output is correct
74 Correct 16 ms 23756 KB Output is correct
75 Correct 15 ms 23756 KB Output is correct
76 Correct 16 ms 23764 KB Output is correct
77 Correct 16 ms 23884 KB Output is correct
78 Correct 16 ms 23788 KB Output is correct
79 Correct 16 ms 23732 KB Output is correct
80 Correct 16 ms 23756 KB Output is correct
81 Correct 16 ms 23756 KB Output is correct
82 Correct 16 ms 23784 KB Output is correct
83 Correct 16 ms 23756 KB Output is correct
84 Correct 16 ms 23792 KB Output is correct
85 Correct 16 ms 23776 KB Output is correct
86 Correct 16 ms 23788 KB Output is correct
87 Correct 16 ms 23788 KB Output is correct
88 Correct 18 ms 23764 KB Output is correct
89 Correct 19 ms 23840 KB Output is correct
90 Correct 17 ms 23796 KB Output is correct
91 Correct 16 ms 23800 KB Output is correct
92 Correct 18 ms 23756 KB Output is correct
93 Correct 16 ms 23796 KB Output is correct
94 Correct 16 ms 23788 KB Output is correct
95 Correct 16 ms 23884 KB Output is correct
96 Correct 15 ms 23756 KB Output is correct
97 Correct 16 ms 23796 KB Output is correct
98 Correct 15 ms 23756 KB Output is correct
99 Correct 16 ms 23756 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 23756 KB Output is correct
2 Correct 16 ms 23740 KB Output is correct
3 Correct 15 ms 23884 KB Output is correct
4 Correct 15 ms 23736 KB Output is correct
5 Correct 15 ms 23756 KB Output is correct
6 Correct 15 ms 23764 KB Output is correct
7 Correct 15 ms 23784 KB Output is correct
8 Correct 15 ms 23724 KB Output is correct
9 Correct 15 ms 23756 KB Output is correct
10 Correct 14 ms 23736 KB Output is correct
11 Correct 14 ms 23780 KB Output is correct
12 Correct 15 ms 23800 KB Output is correct
13 Correct 15 ms 23752 KB Output is correct
14 Correct 16 ms 23772 KB Output is correct
15 Correct 14 ms 23784 KB Output is correct
16 Correct 15 ms 23784 KB Output is correct
17 Correct 14 ms 23756 KB Output is correct
18 Correct 15 ms 23744 KB Output is correct
19 Correct 14 ms 23772 KB Output is correct
20 Correct 14 ms 23788 KB Output is correct
21 Correct 14 ms 23708 KB Output is correct
22 Correct 15 ms 23792 KB Output is correct
23 Correct 14 ms 23736 KB Output is correct
24 Correct 14 ms 23756 KB Output is correct
25 Correct 15 ms 23756 KB Output is correct
26 Correct 14 ms 23780 KB Output is correct
27 Correct 15 ms 23756 KB Output is correct
28 Correct 14 ms 23756 KB Output is correct
29 Correct 16 ms 23748 KB Output is correct
30 Correct 17 ms 23780 KB Output is correct
31 Correct 15 ms 23776 KB Output is correct
32 Correct 15 ms 23944 KB Output is correct
33 Correct 15 ms 23756 KB Output is correct
34 Correct 15 ms 23700 KB Output is correct
35 Correct 15 ms 23792 KB Output is correct
36 Correct 15 ms 23808 KB Output is correct
37 Correct 15 ms 23792 KB Output is correct
38 Correct 15 ms 23760 KB Output is correct
39 Correct 15 ms 23884 KB Output is correct
40 Correct 15 ms 23884 KB Output is correct
41 Correct 15 ms 23820 KB Output is correct
42 Correct 15 ms 23884 KB Output is correct
43 Correct 15 ms 23776 KB Output is correct
44 Correct 15 ms 23800 KB Output is correct
45 Correct 15 ms 23756 KB Output is correct
46 Correct 17 ms 23756 KB Output is correct
47 Correct 15 ms 23724 KB Output is correct
48 Correct 15 ms 23780 KB Output is correct
49 Correct 15 ms 23756 KB Output is correct
50 Correct 17 ms 23784 KB Output is correct
51 Correct 15 ms 23808 KB Output is correct
52 Correct 17 ms 23712 KB Output is correct
53 Correct 15 ms 23776 KB Output is correct
54 Correct 15 ms 23788 KB Output is correct
55 Correct 15 ms 23756 KB Output is correct
56 Correct 15 ms 23784 KB Output is correct
57 Correct 15 ms 23784 KB Output is correct
58 Correct 15 ms 23700 KB Output is correct
59 Correct 15 ms 23756 KB Output is correct
60 Correct 15 ms 23720 KB Output is correct
61 Correct 15 ms 23720 KB Output is correct
62 Correct 15 ms 23756 KB Output is correct
63 Correct 15 ms 23796 KB Output is correct
64 Correct 15 ms 23756 KB Output is correct
65 Correct 15 ms 23784 KB Output is correct
66 Correct 15 ms 23780 KB Output is correct
67 Correct 15 ms 23792 KB Output is correct
68 Correct 38 ms 28732 KB Output is correct
69 Correct 62 ms 33660 KB Output is correct
70 Correct 15 ms 23756 KB Output is correct
71 Correct 83 ms 38656 KB Output is correct
72 Correct 109 ms 43636 KB Output is correct
73 Correct 129 ms 48720 KB Output is correct
74 Correct 153 ms 53700 KB Output is correct
75 Correct 174 ms 58684 KB Output is correct
76 Correct 207 ms 63672 KB Output is correct
77 Correct 223 ms 68704 KB Output is correct
78 Correct 243 ms 73776 KB Output is correct
79 Correct 274 ms 78820 KB Output is correct
80 Correct 291 ms 83748 KB Output is correct
81 Correct 15 ms 23792 KB Output is correct
82 Correct 312 ms 88816 KB Output is correct
83 Correct 343 ms 93816 KB Output is correct
84 Correct 363 ms 98840 KB Output is correct
85 Correct 383 ms 103724 KB Output is correct
86 Correct 462 ms 108796 KB Output is correct
87 Correct 436 ms 113848 KB Output is correct
88 Correct 456 ms 118720 KB Output is correct
89 Correct 484 ms 123652 KB Output is correct
90 Correct 16 ms 23792 KB Output is correct
91 Correct 16 ms 23740 KB Output is correct
92 Correct 15 ms 23756 KB Output is correct
93 Correct 16 ms 23692 KB Output is correct
94 Correct 14 ms 23688 KB Output is correct
95 Correct 15 ms 23748 KB Output is correct
96 Correct 15 ms 23812 KB Output is correct
97 Correct 15 ms 23752 KB Output is correct
98 Correct 16 ms 23692 KB Output is correct
99 Correct 16 ms 23756 KB Output is correct
100 Correct 15 ms 23756 KB Output is correct
101 Correct 15 ms 23756 KB Output is correct
102 Correct 16 ms 23784 KB Output is correct
103 Correct 16 ms 23756 KB Output is correct
104 Correct 16 ms 23756 KB Output is correct
105 Correct 16 ms 23780 KB Output is correct
106 Correct 15 ms 23780 KB Output is correct
107 Correct 16 ms 23764 KB Output is correct
108 Correct 15 ms 23756 KB Output is correct
109 Correct 16 ms 23908 KB Output is correct
110 Correct 16 ms 23724 KB Output is correct
111 Correct 15 ms 23756 KB Output is correct
112 Correct 15 ms 23756 KB Output is correct
113 Correct 16 ms 23788 KB Output is correct
114 Correct 16 ms 23780 KB Output is correct
115 Correct 15 ms 23784 KB Output is correct
116 Correct 15 ms 23756 KB Output is correct
117 Correct 16 ms 23764 KB Output is correct
118 Correct 16 ms 23696 KB Output is correct
119 Correct 15 ms 23708 KB Output is correct
120 Correct 16 ms 23756 KB Output is correct
121 Correct 16 ms 23756 KB Output is correct
122 Correct 15 ms 23756 KB Output is correct
123 Correct 16 ms 23764 KB Output is correct
124 Correct 16 ms 23884 KB Output is correct
125 Correct 16 ms 23788 KB Output is correct
126 Correct 16 ms 23732 KB Output is correct
127 Correct 16 ms 23756 KB Output is correct
128 Correct 16 ms 23756 KB Output is correct
129 Correct 16 ms 23784 KB Output is correct
130 Correct 16 ms 23756 KB Output is correct
131 Correct 16 ms 23792 KB Output is correct
132 Correct 16 ms 23776 KB Output is correct
133 Correct 16 ms 23788 KB Output is correct
134 Correct 16 ms 23788 KB Output is correct
135 Correct 18 ms 23764 KB Output is correct
136 Correct 19 ms 23840 KB Output is correct
137 Correct 17 ms 23796 KB Output is correct
138 Correct 16 ms 23800 KB Output is correct
139 Correct 18 ms 23756 KB Output is correct
140 Correct 16 ms 23796 KB Output is correct
141 Correct 16 ms 23788 KB Output is correct
142 Correct 16 ms 23884 KB Output is correct
143 Correct 15 ms 23756 KB Output is correct
144 Correct 16 ms 23796 KB Output is correct
145 Correct 15 ms 23756 KB Output is correct
146 Correct 16 ms 23756 KB Output is correct
147 Correct 15 ms 23756 KB Output is correct
148 Correct 15 ms 23768 KB Output is correct
149 Correct 15 ms 23756 KB Output is correct
150 Correct 16 ms 23784 KB Output is correct
151 Correct 15 ms 23756 KB Output is correct
152 Correct 15 ms 23784 KB Output is correct
153 Correct 16 ms 23756 KB Output is correct
154 Correct 15 ms 23780 KB Output is correct
155 Correct 16 ms 23768 KB Output is correct
156 Correct 16 ms 23756 KB Output is correct
157 Correct 15 ms 23756 KB Output is correct
158 Correct 18 ms 23756 KB Output is correct
159 Correct 15 ms 23756 KB Output is correct
160 Correct 16 ms 23772 KB Output is correct
161 Correct 15 ms 23700 KB Output is correct
162 Correct 15 ms 23756 KB Output is correct
163 Correct 16 ms 23756 KB Output is correct
164 Correct 15 ms 23724 KB Output is correct
165 Correct 15 ms 23756 KB Output is correct
166 Correct 15 ms 23756 KB Output is correct
167 Correct 16 ms 23784 KB Output is correct
168 Correct 16 ms 23820 KB Output is correct
169 Correct 16 ms 23756 KB Output is correct
170 Correct 16 ms 23756 KB Output is correct
171 Correct 43 ms 27116 KB Output is correct
172 Correct 79 ms 30548 KB Output is correct
173 Correct 141 ms 34028 KB Output is correct
174 Correct 197 ms 37620 KB Output is correct
175 Correct 261 ms 40976 KB Output is correct
176 Correct 303 ms 44588 KB Output is correct
177 Correct 358 ms 47920 KB Output is correct
178 Correct 433 ms 51484 KB Output is correct
179 Correct 475 ms 54832 KB Output is correct
180 Correct 15 ms 23756 KB Output is correct
181 Correct 538 ms 58388 KB Output is correct
182 Correct 595 ms 61852 KB Output is correct
183 Correct 653 ms 65168 KB Output is correct
184 Correct 723 ms 68648 KB Output is correct
185 Correct 778 ms 72100 KB Output is correct
186 Correct 824 ms 75712 KB Output is correct
187 Correct 936 ms 79280 KB Output is correct
188 Correct 957 ms 82516 KB Output is correct
189 Correct 1036 ms 86060 KB Output is correct
190 Correct 1097 ms 89368 KB Output is correct
191 Correct 16 ms 23756 KB Output is correct
192 Correct 1131 ms 78964 KB Output is correct
193 Correct 238 ms 72432 KB Output is correct
194 Correct 461 ms 121316 KB Output is correct
195 Correct 15 ms 23756 KB Output is correct
196 Correct 17 ms 23764 KB Output is correct
197 Correct 15 ms 23784 KB Output is correct
198 Correct 16 ms 23760 KB Output is correct