oj.uz

답안 #826267

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
826267 2023-08-15T11:45:37 Z loctildore 분수 공원 (IOI21_parks) C++17
70 / 100
 3464 ms 69400 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
// trans rights
#define ll long long
#define f first
#define s second
#define endl '\n'
#define all(x) begin(x), end(x)
int n;
vector<int> u, v, a, b;
map<pair<int, int>, int> mp;
set<pair<int, int>> done;

vector<pair<int, int>> dirs = {{0, 2}, {2, 0}, {0, -2}, {-2, 0}};
vector<pair<int, int>> bloc[2] = {{{-1, 1}, {1, 1}, {1, -1}, {-1, -1}}, {{1, 1}, {1, -1}, {-1, -1}, {-1, 1}}};

void dfs(int x, int y, int ldir = 0) {
    done.insert({x, y});
    for (int i = 0; i < 4; i++) {
        int ndir = (ldir + 3 + i) % 4;
        int nx = x + dirs[ndir].f;
        int ny = y + dirs[ndir].s;
        if (mp.find({nx, ny}) == mp.end()) continue;
        if (done.find({nx, ny}) != done.end()) continue;

        int tx = x + bloc[0][ndir].f;
        int ty = y + bloc[0][ndir].s;
        if (done.find({tx, ty}) == done.end()) {
            u.push_back(mp[{x, y}]);
            v.push_back(mp[{nx, ny}]);
            done.insert({tx, ty});
            a.push_back(tx);
            b.push_back(ty);
            dfs(nx, ny, ndir);
            continue;
        }

        tx = x + bloc[1][ndir].f;
        ty = y + bloc[1][ndir].s;
        if (done.find({tx, ty}) == done.end()) {
            u.push_back(mp[{x, y}]);
            v.push_back(mp[{nx, ny}]);
            done.insert({tx, ty});
            a.push_back(tx);
            b.push_back(ty);
            dfs(nx, ny, ndir);
        }
    }
}

int construct_roads(vector<int> xs, vector<int> ys) {
    srand(69);
    n = xs.size();
    for (int i = 0; i < n; i++) {
        mp[{xs[i], ys[i]}] = i;
    }
    for (int tst = 0; tst < 8; tst++) {
        int t = rand() % n;
        dfs(xs[t], ys[t]);
        if (u.size() == n - 1) {
            build(u, v, a, b);
            return 1;
        }
        done.clear();
        u.clear();
        v.clear();
        a.clear();
        b.clear();
    }
    return 0;
}

Compilation message

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:61:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   61 |         if (u.size() == n - 1) {
      |             ~~~~~~~~~^~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 30052 KB Output is correct
10 Correct 13 ms 3620 KB Output is correct
11 Correct 95 ms 16956 KB Output is correct
12 Correct 20 ms 4820 KB Output is correct
13 Correct 221 ms 10648 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 166 ms 31360 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 30052 KB Output is correct
10 Correct 13 ms 3620 KB Output is correct
11 Correct 95 ms 16956 KB Output is correct
12 Correct 20 ms 4820 KB Output is correct
13 Correct 221 ms 10648 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 166 ms 31360 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 466 ms 69188 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 10 ms 892 KB Output is correct
27 Correct 5 ms 724 KB Output is correct
28 Correct 146 ms 27840 KB Output is correct
29 Correct 254 ms 41648 KB Output is correct
30 Correct 342 ms 51288 KB Output is correct
31 Correct 484 ms 69108 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 6 ms 596 KB Output is correct
44 Correct 5 ms 724 KB Output is correct
45 Correct 186 ms 31280 KB Output is correct
46 Correct 273 ms 40996 KB Output is correct
47 Correct 285 ms 44448 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 30052 KB Output is correct
10 Correct 13 ms 3620 KB Output is correct
11 Correct 95 ms 16956 KB Output is correct
12 Correct 20 ms 4820 KB Output is correct
13 Correct 221 ms 10648 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 166 ms 31360 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 466 ms 69188 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 10 ms 892 KB Output is correct
27 Correct 5 ms 724 KB Output is correct
28 Correct 146 ms 27840 KB Output is correct
29 Correct 254 ms 41648 KB Output is correct
30 Correct 342 ms 51288 KB Output is correct
31 Correct 484 ms 69108 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 6 ms 596 KB Output is correct
44 Correct 5 ms 724 KB Output is correct
45 Correct 186 ms 31280 KB Output is correct
46 Correct 273 ms 40996 KB Output is correct
47 Correct 285 ms 44448 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 484 ms 68772 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 3 ms 852 KB Output is correct
58 Correct 8 ms 2260 KB Output is correct
59 Correct 15 ms 1604 KB Output is correct
60 Correct 203 ms 32896 KB Output is correct
61 Correct 295 ms 46008 KB Output is correct
62 Correct 356 ms 47652 KB Output is correct
63 Correct 464 ms 63936 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 1 ms 212 KB Output is correct
67 Correct 379 ms 66028 KB Output is correct
68 Correct 365 ms 62216 KB Output is correct
69 Correct 406 ms 58016 KB Output is correct
70 Correct 15 ms 968 KB Output is correct
71 Correct 15 ms 1296 KB Output is correct
72 Correct 200 ms 29064 KB Output is correct
73 Correct 291 ms 41236 KB Output is correct
74 Correct 411 ms 54772 KB Output is correct
75 Correct 457 ms 64164 KB Output is correct
76 Correct 421 ms 69180 KB Output is correct
77 Correct 16 ms 1108 KB Output is correct
78 Correct 21 ms 1584 KB Output is correct
79 Correct 179 ms 26936 KB Output is correct
80 Correct 282 ms 40880 KB Output is correct
81 Correct 408 ms 55088 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 30052 KB Output is correct
10 Correct 13 ms 3620 KB Output is correct
11 Correct 95 ms 16956 KB Output is correct
12 Correct 20 ms 4820 KB Output is correct
13 Correct 221 ms 10648 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 166 ms 31360 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 411 ms 66252 KB Output is correct
21 Correct 427 ms 63120 KB Output is correct
22 Correct 450 ms 57220 KB Output is correct
23 Correct 326 ms 52768 KB Output is correct
24 Correct 126 ms 15908 KB Output is correct
25 Correct 94 ms 15924 KB Output is correct
26 Correct 104 ms 15988 KB Output is correct
27 Correct 306 ms 44268 KB Output is correct
28 Correct 315 ms 44284 KB Output is correct
29 Correct 471 ms 44268 KB Output is correct
30 Correct 474 ms 44224 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 23 ms 4644 KB Output is correct
33 Correct 39 ms 8096 KB Output is correct
34 Correct 412 ms 58944 KB Output is correct
35 Correct 38 ms 1656 KB Output is correct
36 Correct 101 ms 5508 KB Output is correct
37 Correct 123 ms 9248 KB Output is correct
38 Correct 147 ms 18064 KB Output is correct
39 Correct 201 ms 24660 KB Output is correct
40 Correct 264 ms 31348 KB Output is correct
41 Correct 334 ms 38120 KB Output is correct
42 Correct 401 ms 44764 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 0 ms 212 KB Output is correct
54 Correct 6 ms 596 KB Output is correct
55 Correct 5 ms 596 KB Output is correct
56 Correct 179 ms 31360 KB Output is correct
57 Correct 277 ms 40876 KB Output is correct
58 Correct 289 ms 44584 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 0 ms 212 KB Output is correct
62 Correct 410 ms 66036 KB Output is correct
63 Correct 379 ms 62280 KB Output is correct
64 Correct 388 ms 58016 KB Output is correct
65 Correct 13 ms 960 KB Output is correct
66 Correct 19 ms 1364 KB Output is correct
67 Correct 174 ms 29056 KB Output is correct
68 Correct 290 ms 41132 KB Output is correct
69 Correct 418 ms 54820 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 30052 KB Output is correct
10 Correct 13 ms 3620 KB Output is correct
11 Correct 95 ms 16956 KB Output is correct
12 Correct 20 ms 4820 KB Output is correct
13 Correct 221 ms 10648 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 166 ms 31360 KB Output is correct
17 Correct 414 ms 69172 KB Output is correct
18 Correct 416 ms 61544 KB Output is correct
19 Correct 416 ms 69400 KB Output is correct
20 Correct 456 ms 59700 KB Output is correct
21 Correct 378 ms 50960 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 60 ms 8652 KB Output is correct
24 Correct 94 ms 3792 KB Output is correct
25 Correct 144 ms 8168 KB Output is correct
26 Correct 163 ms 11876 KB Output is correct
27 Correct 216 ms 30552 KB Output is correct
28 Correct 275 ms 38108 KB Output is correct
29 Correct 357 ms 45852 KB Output is correct
30 Correct 433 ms 53196 KB Output is correct
31 Correct 481 ms 60608 KB Output is correct
32 Correct 415 ms 64160 KB Output is correct
33 Correct 402 ms 69152 KB Output is correct
34 Correct 16 ms 1108 KB Output is correct
35 Correct 21 ms 1588 KB Output is correct
36 Correct 171 ms 27000 KB Output is correct
37 Correct 287 ms 40824 KB Output is correct
38 Correct 387 ms 55068 KB Output is correct

Subtask #6
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 30052 KB Output is correct
10 Correct 13 ms 3620 KB Output is correct
11 Correct 95 ms 16956 KB Output is correct
12 Correct 20 ms 4820 KB Output is correct
13 Correct 221 ms 10648 KB Output is correct
14 Correct 3 ms 468 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 166 ms 31360 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 466 ms 69188 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 10 ms 892 KB Output is correct
27 Correct 5 ms 724 KB Output is correct
28 Correct 146 ms 27840 KB Output is correct
29 Correct 254 ms 41648 KB Output is correct
30 Correct 342 ms 51288 KB Output is correct
31 Correct 484 ms 69108 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 6 ms 596 KB Output is correct
44 Correct 5 ms 724 KB Output is correct
45 Correct 186 ms 31280 KB Output is correct
46 Correct 273 ms 40996 KB Output is correct
47 Correct 285 ms 44448 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 0 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 0 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 484 ms 68772 KB Output is correct
56 Correct 0 ms 212 KB Output is correct
57 Correct 3 ms 852 KB Output is correct
58 Correct 8 ms 2260 KB Output is correct
59 Correct 15 ms 1604 KB Output is correct
60 Correct 203 ms 32896 KB Output is correct
61 Correct 295 ms 46008 KB Output is correct
62 Correct 356 ms 47652 KB Output is correct
63 Correct 464 ms 63936 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 1 ms 212 KB Output is correct
67 Correct 379 ms 66028 KB Output is correct
68 Correct 365 ms 62216 KB Output is correct
69 Correct 406 ms 58016 KB Output is correct
70 Correct 15 ms 968 KB Output is correct
71 Correct 15 ms 1296 KB Output is correct
72 Correct 200 ms 29064 KB Output is correct
73 Correct 291 ms 41236 KB Output is correct
74 Correct 411 ms 54772 KB Output is correct
75 Correct 457 ms 64164 KB Output is correct
76 Correct 421 ms 69180 KB Output is correct
77 Correct 16 ms 1108 KB Output is correct
78 Correct 21 ms 1584 KB Output is correct
79 Correct 179 ms 26936 KB Output is correct
80 Correct 282 ms 40880 KB Output is correct
81 Correct 408 ms 55088 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 411 ms 66252 KB Output is correct
86 Correct 427 ms 63120 KB Output is correct
87 Correct 450 ms 57220 KB Output is correct
88 Correct 326 ms 52768 KB Output is correct
89 Correct 126 ms 15908 KB Output is correct
90 Correct 94 ms 15924 KB Output is correct
91 Correct 104 ms 15988 KB Output is correct
92 Correct 306 ms 44268 KB Output is correct
93 Correct 315 ms 44284 KB Output is correct
94 Correct 471 ms 44268 KB Output is correct
95 Correct 474 ms 44224 KB Output is correct
96 Correct 0 ms 212 KB Output is correct
97 Correct 23 ms 4644 KB Output is correct
98 Correct 39 ms 8096 KB Output is correct
99 Correct 412 ms 58944 KB Output is correct
100 Correct 38 ms 1656 KB Output is correct
101 Correct 101 ms 5508 KB Output is correct
102 Correct 123 ms 9248 KB Output is correct
103 Correct 147 ms 18064 KB Output is correct
104 Correct 201 ms 24660 KB Output is correct
105 Correct 264 ms 31348 KB Output is correct
106 Correct 334 ms 38120 KB Output is correct
107 Correct 401 ms 44764 KB Output is correct
108 Correct 0 ms 212 KB Output is correct
109 Correct 0 ms 212 KB Output is correct
110 Correct 0 ms 212 KB Output is correct
111 Correct 0 ms 212 KB Output is correct
112 Correct 0 ms 212 KB Output is correct
113 Correct 0 ms 212 KB Output is correct
114 Correct 1 ms 212 KB Output is correct
115 Correct 0 ms 212 KB Output is correct
116 Correct 0 ms 212 KB Output is correct
117 Correct 0 ms 212 KB Output is correct
118 Correct 0 ms 212 KB Output is correct
119 Correct 6 ms 596 KB Output is correct
120 Correct 5 ms 596 KB Output is correct
121 Correct 179 ms 31360 KB Output is correct
122 Correct 277 ms 40876 KB Output is correct
123 Correct 289 ms 44584 KB Output is correct
124 Correct 0 ms 212 KB Output is correct
125 Correct 0 ms 212 KB Output is correct
126 Correct 0 ms 212 KB Output is correct
127 Correct 410 ms 66036 KB Output is correct
128 Correct 379 ms 62280 KB Output is correct
129 Correct 388 ms 58016 KB Output is correct
130 Correct 13 ms 960 KB Output is correct
131 Correct 19 ms 1364 KB Output is correct
132 Correct 174 ms 29056 KB Output is correct
133 Correct 290 ms 41132 KB Output is correct
134 Correct 418 ms 54820 KB Output is correct
135 Correct 414 ms 69172 KB Output is correct
136 Correct 416 ms 61544 KB Output is correct
137 Correct 416 ms 69400 KB Output is correct
138 Correct 456 ms 59700 KB Output is correct
139 Correct 378 ms 50960 KB Output is correct
140 Correct 0 ms 212 KB Output is correct
141 Correct 60 ms 8652 KB Output is correct
142 Correct 94 ms 3792 KB Output is correct
143 Correct 144 ms 8168 KB Output is correct
144 Correct 163 ms 11876 KB Output is correct
145 Correct 216 ms 30552 KB Output is correct
146 Correct 275 ms 38108 KB Output is correct
147 Correct 357 ms 45852 KB Output is correct
148 Correct 433 ms 53196 KB Output is correct
149 Correct 481 ms 60608 KB Output is correct
150 Correct 415 ms 64160 KB Output is correct
151 Correct 402 ms 69152 KB Output is correct
152 Correct 16 ms 1108 KB Output is correct
153 Correct 21 ms 1588 KB Output is correct
154 Correct 171 ms 27000 KB Output is correct
155 Correct 287 ms 40824 KB Output is correct
156 Correct 387 ms 55068 KB Output is correct
157 Correct 0 ms 212 KB Output is correct
158 Correct 1 ms 212 KB Output is correct
159 Correct 0 ms 212 KB Output is correct
160 Correct 1 ms 212 KB Output is correct
161 Correct 469 ms 69200 KB Output is correct
162 Correct 396 ms 66748 KB Output is correct
163 Correct 402 ms 60876 KB Output is correct
164 Correct 394 ms 59384 KB Output is correct
165 Correct 462 ms 66620 KB Output is correct
166 Incorrect 3464 ms 61044 KB Solution announced impossible, but it is possible.
167 Halted 0 ms 0 KB -