답안 #644120

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
644120 2022-09-24T00:32:27 Z ymm Traffic (IOI10_traffic) C++17
100 / 100
949 ms 154984 KB
#include "traffic.h"
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

const int N = 1e6+10;
vector<int> A[N];
int cnt[N];
int par[N];
int *p;
int n;

int dfs(int v, int p)
{
	par[v] = p;
	cnt[v] = ::p[v];
	for (int u : A[v])
		if (u != p)
			cnt[v] += dfs(u, v);
	return cnt[v];
}

int LocateCentre(int N, int pp[], int v[], int u[])
{
	n = N;
	p = pp;
	Loop (i,0,n-1) {
		A[v[i]].push_back(u[i]);
		A[u[i]].push_back(v[i]);
	}
	dfs(0, -1);
	int ans = 2e9;
	int vans = 0;
	Loop (v,0,n) {
		int x = 0;
		for (int u : A[v])
			x = max(x, u == par[v]? cnt[0]-cnt[v]: cnt[u]);
		if (x < ans) {
			vans = v;
			ans = x;
		}
	}
	return vans;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23796 KB Output is correct
3 Correct 12 ms 23800 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 13 ms 23744 KB Output is correct
6 Correct 12 ms 23796 KB Output is correct
7 Correct 14 ms 23764 KB Output is correct
8 Correct 13 ms 23796 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23764 KB Output is correct
11 Correct 13 ms 23704 KB Output is correct
12 Correct 14 ms 23720 KB Output is correct
13 Correct 13 ms 23740 KB Output is correct
14 Correct 15 ms 23796 KB Output is correct
15 Correct 12 ms 23764 KB Output is correct
16 Correct 12 ms 23728 KB Output is correct
17 Correct 12 ms 23748 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23756 KB Output is correct
21 Correct 16 ms 23700 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 13 ms 23796 KB Output is correct
24 Correct 13 ms 23728 KB Output is correct
25 Correct 12 ms 23804 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 13 ms 23764 KB Output is correct
28 Correct 15 ms 23804 KB Output is correct
29 Correct 13 ms 23804 KB Output is correct
30 Correct 13 ms 23764 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 12 ms 23820 KB Output is correct
33 Correct 13 ms 23892 KB Output is correct
34 Correct 14 ms 23792 KB Output is correct
35 Correct 18 ms 23812 KB Output is correct
36 Correct 15 ms 23892 KB Output is correct
37 Correct 13 ms 23808 KB Output is correct
38 Correct 13 ms 23848 KB Output is correct
39 Correct 13 ms 23892 KB Output is correct
40 Correct 13 ms 23892 KB Output is correct
41 Correct 13 ms 23836 KB Output is correct
42 Correct 13 ms 23892 KB Output is correct
43 Correct 15 ms 23764 KB Output is correct
44 Correct 13 ms 23768 KB Output is correct
45 Correct 16 ms 23796 KB Output is correct
46 Correct 15 ms 23800 KB Output is correct
47 Correct 14 ms 23724 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23796 KB Output is correct
3 Correct 12 ms 23800 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 13 ms 23744 KB Output is correct
6 Correct 12 ms 23796 KB Output is correct
7 Correct 14 ms 23764 KB Output is correct
8 Correct 13 ms 23796 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23764 KB Output is correct
11 Correct 13 ms 23704 KB Output is correct
12 Correct 14 ms 23720 KB Output is correct
13 Correct 13 ms 23740 KB Output is correct
14 Correct 15 ms 23796 KB Output is correct
15 Correct 12 ms 23764 KB Output is correct
16 Correct 12 ms 23728 KB Output is correct
17 Correct 12 ms 23748 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23756 KB Output is correct
21 Correct 16 ms 23700 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 13 ms 23796 KB Output is correct
24 Correct 13 ms 23728 KB Output is correct
25 Correct 12 ms 23804 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 13 ms 23764 KB Output is correct
28 Correct 15 ms 23804 KB Output is correct
29 Correct 13 ms 23804 KB Output is correct
30 Correct 13 ms 23764 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 12 ms 23820 KB Output is correct
33 Correct 13 ms 23892 KB Output is correct
34 Correct 14 ms 23792 KB Output is correct
35 Correct 18 ms 23812 KB Output is correct
36 Correct 15 ms 23892 KB Output is correct
37 Correct 13 ms 23808 KB Output is correct
38 Correct 13 ms 23848 KB Output is correct
39 Correct 13 ms 23892 KB Output is correct
40 Correct 13 ms 23892 KB Output is correct
41 Correct 13 ms 23836 KB Output is correct
42 Correct 13 ms 23892 KB Output is correct
43 Correct 15 ms 23764 KB Output is correct
44 Correct 13 ms 23768 KB Output is correct
45 Correct 16 ms 23796 KB Output is correct
46 Correct 15 ms 23800 KB Output is correct
47 Correct 14 ms 23724 KB Output is correct
48 Correct 12 ms 23816 KB Output is correct
49 Correct 13 ms 23764 KB Output is correct
50 Correct 12 ms 23744 KB Output is correct
51 Correct 12 ms 23740 KB Output is correct
52 Correct 12 ms 23764 KB Output is correct
53 Correct 12 ms 23820 KB Output is correct
54 Correct 13 ms 23764 KB Output is correct
55 Correct 13 ms 23796 KB Output is correct
56 Correct 13 ms 23764 KB Output is correct
57 Correct 13 ms 23800 KB Output is correct
58 Correct 16 ms 23800 KB Output is correct
59 Correct 13 ms 23796 KB Output is correct
60 Correct 13 ms 23804 KB Output is correct
61 Correct 13 ms 23800 KB Output is correct
62 Correct 15 ms 23820 KB Output is correct
63 Correct 13 ms 23820 KB Output is correct
64 Correct 16 ms 23804 KB Output is correct
65 Correct 14 ms 23784 KB Output is correct
66 Correct 14 ms 23796 KB Output is correct
67 Correct 12 ms 23764 KB Output is correct
68 Correct 33 ms 30236 KB Output is correct
69 Correct 55 ms 36832 KB Output is correct
70 Correct 16 ms 23788 KB Output is correct
71 Correct 68 ms 43324 KB Output is correct
72 Correct 90 ms 49936 KB Output is correct
73 Correct 106 ms 56472 KB Output is correct
74 Correct 120 ms 63048 KB Output is correct
75 Correct 156 ms 69644 KB Output is correct
76 Correct 190 ms 76288 KB Output is correct
77 Correct 198 ms 82836 KB Output is correct
78 Correct 216 ms 89420 KB Output is correct
79 Correct 226 ms 96012 KB Output is correct
80 Correct 258 ms 102584 KB Output is correct
81 Correct 13 ms 23804 KB Output is correct
82 Correct 253 ms 109368 KB Output is correct
83 Correct 287 ms 115752 KB Output is correct
84 Correct 292 ms 122308 KB Output is correct
85 Correct 333 ms 128924 KB Output is correct
86 Correct 361 ms 135460 KB Output is correct
87 Correct 405 ms 142036 KB Output is correct
88 Correct 446 ms 148444 KB Output is correct
89 Correct 434 ms 154984 KB Output is correct
90 Correct 14 ms 23768 KB Output is correct
91 Correct 12 ms 23764 KB Output is correct
92 Correct 11 ms 23764 KB Output is correct
93 Correct 13 ms 23852 KB Output is correct
94 Correct 13 ms 23796 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23796 KB Output is correct
3 Correct 12 ms 23800 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 13 ms 23744 KB Output is correct
6 Correct 12 ms 23796 KB Output is correct
7 Correct 14 ms 23764 KB Output is correct
8 Correct 13 ms 23796 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23764 KB Output is correct
11 Correct 13 ms 23704 KB Output is correct
12 Correct 14 ms 23720 KB Output is correct
13 Correct 13 ms 23740 KB Output is correct
14 Correct 15 ms 23796 KB Output is correct
15 Correct 12 ms 23764 KB Output is correct
16 Correct 12 ms 23728 KB Output is correct
17 Correct 12 ms 23748 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23756 KB Output is correct
21 Correct 16 ms 23700 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 13 ms 23796 KB Output is correct
24 Correct 13 ms 23728 KB Output is correct
25 Correct 12 ms 23804 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 13 ms 23764 KB Output is correct
28 Correct 15 ms 23804 KB Output is correct
29 Correct 13 ms 23804 KB Output is correct
30 Correct 13 ms 23764 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 12 ms 23820 KB Output is correct
33 Correct 13 ms 23892 KB Output is correct
34 Correct 14 ms 23792 KB Output is correct
35 Correct 18 ms 23812 KB Output is correct
36 Correct 15 ms 23892 KB Output is correct
37 Correct 13 ms 23808 KB Output is correct
38 Correct 13 ms 23848 KB Output is correct
39 Correct 13 ms 23892 KB Output is correct
40 Correct 13 ms 23892 KB Output is correct
41 Correct 13 ms 23836 KB Output is correct
42 Correct 13 ms 23892 KB Output is correct
43 Correct 15 ms 23764 KB Output is correct
44 Correct 13 ms 23768 KB Output is correct
45 Correct 16 ms 23796 KB Output is correct
46 Correct 15 ms 23800 KB Output is correct
47 Correct 14 ms 23724 KB Output is correct
48 Correct 13 ms 23764 KB Output is correct
49 Correct 14 ms 23804 KB Output is correct
50 Correct 12 ms 23764 KB Output is correct
51 Correct 12 ms 23764 KB Output is correct
52 Correct 12 ms 23804 KB Output is correct
53 Correct 12 ms 23796 KB Output is correct
54 Correct 13 ms 23756 KB Output is correct
55 Correct 12 ms 23716 KB Output is correct
56 Correct 15 ms 23764 KB Output is correct
57 Correct 13 ms 23764 KB Output is correct
58 Correct 13 ms 23816 KB Output is correct
59 Correct 12 ms 23712 KB Output is correct
60 Correct 14 ms 23812 KB Output is correct
61 Correct 14 ms 23828 KB Output is correct
62 Correct 13 ms 23764 KB Output is correct
63 Correct 13 ms 23796 KB Output is correct
64 Correct 14 ms 23800 KB Output is correct
65 Correct 14 ms 23800 KB Output is correct
66 Correct 14 ms 23764 KB Output is correct
67 Correct 12 ms 23808 KB Output is correct
68 Correct 13 ms 23792 KB Output is correct
69 Correct 12 ms 23800 KB Output is correct
70 Correct 12 ms 23764 KB Output is correct
71 Correct 13 ms 23796 KB Output is correct
72 Correct 12 ms 23800 KB Output is correct
73 Correct 14 ms 23760 KB Output is correct
74 Correct 14 ms 23796 KB Output is correct
75 Correct 14 ms 23728 KB Output is correct
76 Correct 14 ms 23764 KB Output is correct
77 Correct 16 ms 23748 KB Output is correct
78 Correct 12 ms 23764 KB Output is correct
79 Correct 13 ms 23828 KB Output is correct
80 Correct 12 ms 23800 KB Output is correct
81 Correct 12 ms 23800 KB Output is correct
82 Correct 12 ms 23804 KB Output is correct
83 Correct 13 ms 23764 KB Output is correct
84 Correct 13 ms 23764 KB Output is correct
85 Correct 13 ms 23860 KB Output is correct
86 Correct 16 ms 23752 KB Output is correct
87 Correct 16 ms 23892 KB Output is correct
88 Correct 16 ms 23788 KB Output is correct
89 Correct 13 ms 23812 KB Output is correct
90 Correct 13 ms 23816 KB Output is correct
91 Correct 12 ms 23764 KB Output is correct
92 Correct 12 ms 23772 KB Output is correct
93 Correct 14 ms 23808 KB Output is correct
94 Correct 13 ms 23772 KB Output is correct
95 Correct 14 ms 23932 KB Output is correct
96 Correct 12 ms 23808 KB Output is correct
97 Correct 13 ms 23764 KB Output is correct
98 Correct 13 ms 23764 KB Output is correct
99 Correct 13 ms 23796 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23764 KB Output is correct
2 Correct 12 ms 23796 KB Output is correct
3 Correct 12 ms 23800 KB Output is correct
4 Correct 12 ms 23764 KB Output is correct
5 Correct 13 ms 23744 KB Output is correct
6 Correct 12 ms 23796 KB Output is correct
7 Correct 14 ms 23764 KB Output is correct
8 Correct 13 ms 23796 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 12 ms 23764 KB Output is correct
11 Correct 13 ms 23704 KB Output is correct
12 Correct 14 ms 23720 KB Output is correct
13 Correct 13 ms 23740 KB Output is correct
14 Correct 15 ms 23796 KB Output is correct
15 Correct 12 ms 23764 KB Output is correct
16 Correct 12 ms 23728 KB Output is correct
17 Correct 12 ms 23748 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 12 ms 23756 KB Output is correct
21 Correct 16 ms 23700 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 13 ms 23796 KB Output is correct
24 Correct 13 ms 23728 KB Output is correct
25 Correct 12 ms 23804 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 13 ms 23764 KB Output is correct
28 Correct 15 ms 23804 KB Output is correct
29 Correct 13 ms 23804 KB Output is correct
30 Correct 13 ms 23764 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 12 ms 23820 KB Output is correct
33 Correct 13 ms 23892 KB Output is correct
34 Correct 14 ms 23792 KB Output is correct
35 Correct 18 ms 23812 KB Output is correct
36 Correct 15 ms 23892 KB Output is correct
37 Correct 13 ms 23808 KB Output is correct
38 Correct 13 ms 23848 KB Output is correct
39 Correct 13 ms 23892 KB Output is correct
40 Correct 13 ms 23892 KB Output is correct
41 Correct 13 ms 23836 KB Output is correct
42 Correct 13 ms 23892 KB Output is correct
43 Correct 15 ms 23764 KB Output is correct
44 Correct 13 ms 23768 KB Output is correct
45 Correct 16 ms 23796 KB Output is correct
46 Correct 15 ms 23800 KB Output is correct
47 Correct 14 ms 23724 KB Output is correct
48 Correct 12 ms 23816 KB Output is correct
49 Correct 13 ms 23764 KB Output is correct
50 Correct 12 ms 23744 KB Output is correct
51 Correct 12 ms 23740 KB Output is correct
52 Correct 12 ms 23764 KB Output is correct
53 Correct 12 ms 23820 KB Output is correct
54 Correct 13 ms 23764 KB Output is correct
55 Correct 13 ms 23796 KB Output is correct
56 Correct 13 ms 23764 KB Output is correct
57 Correct 13 ms 23800 KB Output is correct
58 Correct 16 ms 23800 KB Output is correct
59 Correct 13 ms 23796 KB Output is correct
60 Correct 13 ms 23804 KB Output is correct
61 Correct 13 ms 23800 KB Output is correct
62 Correct 15 ms 23820 KB Output is correct
63 Correct 13 ms 23820 KB Output is correct
64 Correct 16 ms 23804 KB Output is correct
65 Correct 14 ms 23784 KB Output is correct
66 Correct 14 ms 23796 KB Output is correct
67 Correct 12 ms 23764 KB Output is correct
68 Correct 33 ms 30236 KB Output is correct
69 Correct 55 ms 36832 KB Output is correct
70 Correct 16 ms 23788 KB Output is correct
71 Correct 68 ms 43324 KB Output is correct
72 Correct 90 ms 49936 KB Output is correct
73 Correct 106 ms 56472 KB Output is correct
74 Correct 120 ms 63048 KB Output is correct
75 Correct 156 ms 69644 KB Output is correct
76 Correct 190 ms 76288 KB Output is correct
77 Correct 198 ms 82836 KB Output is correct
78 Correct 216 ms 89420 KB Output is correct
79 Correct 226 ms 96012 KB Output is correct
80 Correct 258 ms 102584 KB Output is correct
81 Correct 13 ms 23804 KB Output is correct
82 Correct 253 ms 109368 KB Output is correct
83 Correct 287 ms 115752 KB Output is correct
84 Correct 292 ms 122308 KB Output is correct
85 Correct 333 ms 128924 KB Output is correct
86 Correct 361 ms 135460 KB Output is correct
87 Correct 405 ms 142036 KB Output is correct
88 Correct 446 ms 148444 KB Output is correct
89 Correct 434 ms 154984 KB Output is correct
90 Correct 14 ms 23768 KB Output is correct
91 Correct 12 ms 23764 KB Output is correct
92 Correct 11 ms 23764 KB Output is correct
93 Correct 13 ms 23852 KB Output is correct
94 Correct 13 ms 23796 KB Output is correct
95 Correct 13 ms 23764 KB Output is correct
96 Correct 14 ms 23804 KB Output is correct
97 Correct 12 ms 23764 KB Output is correct
98 Correct 12 ms 23764 KB Output is correct
99 Correct 12 ms 23804 KB Output is correct
100 Correct 12 ms 23796 KB Output is correct
101 Correct 13 ms 23756 KB Output is correct
102 Correct 12 ms 23716 KB Output is correct
103 Correct 15 ms 23764 KB Output is correct
104 Correct 13 ms 23764 KB Output is correct
105 Correct 13 ms 23816 KB Output is correct
106 Correct 12 ms 23712 KB Output is correct
107 Correct 14 ms 23812 KB Output is correct
108 Correct 14 ms 23828 KB Output is correct
109 Correct 13 ms 23764 KB Output is correct
110 Correct 13 ms 23796 KB Output is correct
111 Correct 14 ms 23800 KB Output is correct
112 Correct 14 ms 23800 KB Output is correct
113 Correct 14 ms 23764 KB Output is correct
114 Correct 12 ms 23808 KB Output is correct
115 Correct 13 ms 23792 KB Output is correct
116 Correct 12 ms 23800 KB Output is correct
117 Correct 12 ms 23764 KB Output is correct
118 Correct 13 ms 23796 KB Output is correct
119 Correct 12 ms 23800 KB Output is correct
120 Correct 14 ms 23760 KB Output is correct
121 Correct 14 ms 23796 KB Output is correct
122 Correct 14 ms 23728 KB Output is correct
123 Correct 14 ms 23764 KB Output is correct
124 Correct 16 ms 23748 KB Output is correct
125 Correct 12 ms 23764 KB Output is correct
126 Correct 13 ms 23828 KB Output is correct
127 Correct 12 ms 23800 KB Output is correct
128 Correct 12 ms 23800 KB Output is correct
129 Correct 12 ms 23804 KB Output is correct
130 Correct 13 ms 23764 KB Output is correct
131 Correct 13 ms 23764 KB Output is correct
132 Correct 13 ms 23860 KB Output is correct
133 Correct 16 ms 23752 KB Output is correct
134 Correct 16 ms 23892 KB Output is correct
135 Correct 16 ms 23788 KB Output is correct
136 Correct 13 ms 23812 KB Output is correct
137 Correct 13 ms 23816 KB Output is correct
138 Correct 12 ms 23764 KB Output is correct
139 Correct 12 ms 23772 KB Output is correct
140 Correct 14 ms 23808 KB Output is correct
141 Correct 13 ms 23772 KB Output is correct
142 Correct 14 ms 23932 KB Output is correct
143 Correct 12 ms 23808 KB Output is correct
144 Correct 13 ms 23764 KB Output is correct
145 Correct 13 ms 23764 KB Output is correct
146 Correct 13 ms 23796 KB Output is correct
147 Correct 14 ms 23788 KB Output is correct
148 Correct 15 ms 23800 KB Output is correct
149 Correct 12 ms 23796 KB Output is correct
150 Correct 12 ms 23764 KB Output is correct
151 Correct 15 ms 23800 KB Output is correct
152 Correct 12 ms 23744 KB Output is correct
153 Correct 14 ms 23764 KB Output is correct
154 Correct 13 ms 23756 KB Output is correct
155 Correct 14 ms 23800 KB Output is correct
156 Correct 14 ms 23820 KB Output is correct
157 Correct 13 ms 23764 KB Output is correct
158 Correct 13 ms 23796 KB Output is correct
159 Correct 13 ms 23800 KB Output is correct
160 Correct 13 ms 23796 KB Output is correct
161 Correct 12 ms 23724 KB Output is correct
162 Correct 12 ms 23800 KB Output is correct
163 Correct 12 ms 23764 KB Output is correct
164 Correct 12 ms 23764 KB Output is correct
165 Correct 12 ms 23764 KB Output is correct
166 Correct 13 ms 23780 KB Output is correct
167 Correct 13 ms 23792 KB Output is correct
168 Correct 12 ms 23820 KB Output is correct
169 Correct 13 ms 23804 KB Output is correct
170 Correct 14 ms 23724 KB Output is correct
171 Correct 41 ms 27212 KB Output is correct
172 Correct 69 ms 30592 KB Output is correct
173 Correct 97 ms 34064 KB Output is correct
174 Correct 153 ms 37524 KB Output is correct
175 Correct 230 ms 41060 KB Output is correct
176 Correct 255 ms 44488 KB Output is correct
177 Correct 276 ms 47932 KB Output is correct
178 Correct 361 ms 51432 KB Output is correct
179 Correct 389 ms 54896 KB Output is correct
180 Correct 15 ms 23764 KB Output is correct
181 Correct 425 ms 58472 KB Output is correct
182 Correct 499 ms 62024 KB Output is correct
183 Correct 522 ms 65356 KB Output is correct
184 Correct 585 ms 68940 KB Output is correct
185 Correct 647 ms 72368 KB Output is correct
186 Correct 665 ms 75740 KB Output is correct
187 Correct 773 ms 79236 KB Output is correct
188 Correct 787 ms 82528 KB Output is correct
189 Correct 832 ms 86020 KB Output is correct
190 Correct 866 ms 89516 KB Output is correct
191 Correct 12 ms 23756 KB Output is correct
192 Correct 949 ms 92960 KB Output is correct
193 Correct 185 ms 88056 KB Output is correct
194 Correct 374 ms 152568 KB Output is correct
195 Correct 12 ms 23892 KB Output is correct
196 Correct 12 ms 23812 KB Output is correct
197 Correct 11 ms 23712 KB Output is correct
198 Correct 13 ms 23764 KB Output is correct