# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
653894 | 2022-10-28T18:30:51 Z | aryan12 | Arranging Shoes (IOI19_shoes) | C++17 | 139 ms | 18772 KB |
#include "shoes.h" #include <bits/stdc++.h> using namespace std; const long long N = 2e5 + 5; long long BIT[N]; bool cmp(pair<long long, long long> a, pair<long long, long long> b) { return (a.second - a.first) < (b.second - b.first); } void Update(long long idx, long long val) { for(long long i = idx; i < N; i += (i & (-i))) { BIT[i] += val; } } long long Query(long long x) { long long ans = 0; for(long long i = x; i > 0; i -= (i & (-i))) { ans += BIT[i]; } return ans; } long long count_swaps(vector<int> input) { long long n = input.size(); vector<pair<long long, long long> > pair_of_shoes; vector<long long> pos(n + 1), idx[n + 1]; for(long long i = 0; i <= n; i++) { pos[i] = 0; } for(long long i = 0; i < n; i++) { if(input[i] > 0) { input[i] += n / 2; } else { input[i] = abs(input[i]); } //cout << "input[i] = " << input[i] << "\n"; idx[input[i]].push_back(i); if(input[i] > n / 2) { if(pos[input[i] - n / 2] != idx[input[i] - n / 2].size()) { long long pos1 = idx[input[i] - n / 2][pos[input[i] - n / 2]], pos2 = idx[input[i]][pos[input[i]]]; pair_of_shoes.push_back(make_pair(idx[input[i] - n / 2][pos[input[i] - n / 2]], idx[input[i]][pos[input[i]]])); pos[input[i] - n / 2]++; pos[input[i]]++; //cout << "pos1 = " << pos1 << ", pos2 = " << pos2 << " hi\n"; } } if(input[i] <= n / 2) { if(pos[input[i] + n / 2] != idx[input[i] + n / 2].size()) { long long pos1 = idx[input[i] + n / 2][pos[input[i] + n / 2]], pos2 = idx[input[i]][pos[input[i]]]; pair_of_shoes.push_back(make_pair(idx[input[i] + n / 2][pos[input[i] + n / 2]], idx[input[i]][pos[input[i]]])); pos[input[i] + n / 2]++; pos[input[i]]++; //cout << "pos1 = " << pos1 << ", pos2 = " << pos2 << " omg\n"; } } } long long ans = 0, res = 0; sort(pair_of_shoes.begin(), pair_of_shoes.end(), cmp); for(long long i = 0; i < pair_of_shoes.size(); i++) { ans += pair_of_shoes[i].second - pair_of_shoes[i].first - 1; if(input[pair_of_shoes[i].first] > input[pair_of_shoes[i].second]) { ans++; } pair_of_shoes[i].first++; pair_of_shoes[i].second++; //cout << pair_of_shoes[i].first << " " << pair_of_shoes[i].second << "\n"; if(pair_of_shoes[i].first != pair_of_shoes[i].second - 1) { Update(pair_of_shoes[i].first + 1, 1); Update(pair_of_shoes[i].second, -1); long long temp = Query(pair_of_shoes[i].first); //whoever started before pair_of_shoes[i].first long long ok = Query(pair_of_shoes[i].second); //whoever started in the middle (also contains the ones which started before pair_of_shoes[i].first) res += ok + temp; //cout << "ok = " << ok << ", temp = " << temp << "\n"; } } return ans - res; }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 1 ms | 212 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 1 ms | 212 KB | Output is correct |
3 | Correct | 1 ms | 340 KB | Output is correct |
4 | Correct | 0 ms | 340 KB | Output is correct |
5 | Correct | 0 ms | 212 KB | Output is correct |
6 | Correct | 1 ms | 340 KB | Output is correct |
7 | Correct | 0 ms | 340 KB | Output is correct |
8 | Correct | 1 ms | 212 KB | Output is correct |
9 | Correct | 1 ms | 340 KB | Output is correct |
10 | Correct | 1 ms | 212 KB | Output is correct |
11 | Correct | 1 ms | 340 KB | Output is correct |
12 | Correct | 1 ms | 340 KB | Output is correct |
13 | Correct | 1 ms | 308 KB | Output is correct |
14 | Correct | 1 ms | 312 KB | Output is correct |
15 | Correct | 1 ms | 340 KB | Output is correct |
16 | Correct | 1 ms | 312 KB | Output is correct |
17 | Correct | 1 ms | 312 KB | Output is correct |
18 | Correct | 0 ms | 340 KB | Output is correct |
19 | Correct | 1 ms | 340 KB | Output is correct |
20 | Correct | 1 ms | 316 KB | Output is correct |
21 | Correct | 1 ms | 340 KB | Output is correct |
22 | Correct | 0 ms | 340 KB | Output is correct |
23 | Correct | 1 ms | 340 KB | Output is correct |
24 | Correct | 1 ms | 340 KB | Output is correct |
25 | Correct | 0 ms | 308 KB | Output is correct |
26 | Correct | 1 ms | 212 KB | Output is correct |
27 | Correct | 1 ms | 340 KB | Output is correct |
28 | Correct | 1 ms | 340 KB | Output is correct |
29 | Correct | 1 ms | 340 KB | Output is correct |
30 | Correct | 1 ms | 312 KB | Output is correct |
31 | Correct | 1 ms | 308 KB | Output is correct |
32 | Correct | 0 ms | 340 KB | Output is correct |
33 | Correct | 1 ms | 292 KB | Output is correct |
34 | Correct | 0 ms | 340 KB | Output is correct |
35 | Correct | 1 ms | 340 KB | Output is correct |
36 | Correct | 1 ms | 340 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 1 ms | 212 KB | Output is correct |
3 | Correct | 0 ms | 340 KB | Output is correct |
4 | Correct | 1 ms | 212 KB | Output is correct |
5 | Correct | 1 ms | 212 KB | Output is correct |
6 | Correct | 1 ms | 340 KB | Output is correct |
7 | Correct | 1 ms | 212 KB | Output is correct |
8 | Correct | 1 ms | 212 KB | Output is correct |
9 | Correct | 0 ms | 340 KB | Output is correct |
10 | Correct | 1 ms | 312 KB | Output is correct |
11 | Correct | 1 ms | 312 KB | Output is correct |
12 | Correct | 1 ms | 312 KB | Output is correct |
13 | Correct | 1 ms | 340 KB | Output is correct |
14 | Correct | 1 ms | 340 KB | Output is correct |
15 | Correct | 1 ms | 340 KB | Output is correct |
16 | Correct | 1 ms | 316 KB | Output is correct |
17 | Correct | 1 ms | 312 KB | Output is correct |
18 | Correct | 1 ms | 468 KB | Output is correct |
19 | Correct | 1 ms | 468 KB | Output is correct |
20 | Correct | 4 ms | 1992 KB | Output is correct |
21 | Correct | 4 ms | 1900 KB | Output is correct |
22 | Correct | 42 ms | 14128 KB | Output is correct |
23 | Correct | 32 ms | 12572 KB | Output is correct |
24 | Correct | 40 ms | 14364 KB | Output is correct |
25 | Correct | 39 ms | 13980 KB | Output is correct |
26 | Correct | 43 ms | 14220 KB | Output is correct |
27 | Correct | 31 ms | 12460 KB | Output is correct |
28 | Correct | 39 ms | 14228 KB | Output is correct |
29 | Correct | 36 ms | 14184 KB | Output is correct |
30 | Correct | 38 ms | 14212 KB | Output is correct |
31 | Correct | 41 ms | 14364 KB | Output is correct |
32 | Correct | 39 ms | 14180 KB | Output is correct |
33 | Correct | 39 ms | 13912 KB | Output is correct |
34 | Correct | 38 ms | 14156 KB | Output is correct |
35 | Correct | 1 ms | 212 KB | Output is correct |
36 | Correct | 0 ms | 340 KB | Output is correct |
37 | Correct | 37 ms | 14168 KB | Output is correct |
38 | Correct | 40 ms | 14120 KB | Output is correct |
39 | Correct | 37 ms | 14172 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 1 ms | 212 KB | Output is correct |
2 | Correct | 0 ms | 252 KB | Output is correct |
3 | Correct | 1 ms | 340 KB | Output is correct |
4 | Correct | 1 ms | 340 KB | Output is correct |
5 | Correct | 78 ms | 18772 KB | Output is correct |
6 | Correct | 52 ms | 15008 KB | Output is correct |
7 | Correct | 71 ms | 18772 KB | Output is correct |
8 | Correct | 38 ms | 14704 KB | Output is correct |
9 | Correct | 76 ms | 18656 KB | Output is correct |
10 | Correct | 78 ms | 16016 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 1 ms | 212 KB | Output is correct |
3 | Correct | 1 ms | 340 KB | Output is correct |
4 | Correct | 0 ms | 340 KB | Output is correct |
5 | Correct | 0 ms | 212 KB | Output is correct |
6 | Correct | 1 ms | 340 KB | Output is correct |
7 | Correct | 0 ms | 340 KB | Output is correct |
8 | Correct | 1 ms | 212 KB | Output is correct |
9 | Correct | 1 ms | 340 KB | Output is correct |
10 | Correct | 1 ms | 212 KB | Output is correct |
11 | Correct | 1 ms | 340 KB | Output is correct |
12 | Correct | 1 ms | 340 KB | Output is correct |
13 | Correct | 1 ms | 308 KB | Output is correct |
14 | Correct | 1 ms | 312 KB | Output is correct |
15 | Correct | 1 ms | 340 KB | Output is correct |
16 | Correct | 1 ms | 312 KB | Output is correct |
17 | Correct | 1 ms | 312 KB | Output is correct |
18 | Correct | 0 ms | 340 KB | Output is correct |
19 | Correct | 1 ms | 340 KB | Output is correct |
20 | Correct | 1 ms | 316 KB | Output is correct |
21 | Correct | 1 ms | 340 KB | Output is correct |
22 | Correct | 0 ms | 340 KB | Output is correct |
23 | Correct | 1 ms | 340 KB | Output is correct |
24 | Correct | 1 ms | 340 KB | Output is correct |
25 | Correct | 0 ms | 308 KB | Output is correct |
26 | Correct | 1 ms | 212 KB | Output is correct |
27 | Correct | 1 ms | 340 KB | Output is correct |
28 | Correct | 1 ms | 340 KB | Output is correct |
29 | Correct | 1 ms | 340 KB | Output is correct |
30 | Correct | 1 ms | 312 KB | Output is correct |
31 | Correct | 1 ms | 308 KB | Output is correct |
32 | Correct | 0 ms | 340 KB | Output is correct |
33 | Correct | 1 ms | 292 KB | Output is correct |
34 | Correct | 0 ms | 340 KB | Output is correct |
35 | Correct | 1 ms | 340 KB | Output is correct |
36 | Correct | 1 ms | 340 KB | Output is correct |
37 | Correct | 1 ms | 340 KB | Output is correct |
38 | Correct | 1 ms | 340 KB | Output is correct |
39 | Correct | 1 ms | 340 KB | Output is correct |
40 | Correct | 1 ms | 340 KB | Output is correct |
41 | Correct | 1 ms | 468 KB | Output is correct |
42 | Correct | 1 ms | 468 KB | Output is correct |
43 | Correct | 1 ms | 452 KB | Output is correct |
44 | Correct | 1 ms | 468 KB | Output is correct |
45 | Correct | 1 ms | 444 KB | Output is correct |
46 | Correct | 1 ms | 340 KB | Output is correct |
47 | Correct | 1 ms | 444 KB | Output is correct |
48 | Correct | 1 ms | 468 KB | Output is correct |
49 | Correct | 1 ms | 468 KB | Output is correct |
50 | Correct | 1 ms | 468 KB | Output is correct |
51 | Correct | 1 ms | 468 KB | Output is correct |
52 | Correct | 1 ms | 468 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 0 ms | 212 KB | Output is correct |
2 | Correct | 1 ms | 212 KB | Output is correct |
3 | Correct | 1 ms | 340 KB | Output is correct |
4 | Correct | 0 ms | 340 KB | Output is correct |
5 | Correct | 0 ms | 212 KB | Output is correct |
6 | Correct | 1 ms | 340 KB | Output is correct |
7 | Correct | 0 ms | 340 KB | Output is correct |
8 | Correct | 1 ms | 212 KB | Output is correct |
9 | Correct | 1 ms | 340 KB | Output is correct |
10 | Correct | 1 ms | 212 KB | Output is correct |
11 | Correct | 1 ms | 340 KB | Output is correct |
12 | Correct | 1 ms | 340 KB | Output is correct |
13 | Correct | 1 ms | 308 KB | Output is correct |
14 | Correct | 1 ms | 312 KB | Output is correct |
15 | Correct | 1 ms | 340 KB | Output is correct |
16 | Correct | 1 ms | 312 KB | Output is correct |
17 | Correct | 1 ms | 312 KB | Output is correct |
18 | Correct | 0 ms | 340 KB | Output is correct |
19 | Correct | 1 ms | 340 KB | Output is correct |
20 | Correct | 1 ms | 316 KB | Output is correct |
21 | Correct | 1 ms | 340 KB | Output is correct |
22 | Correct | 0 ms | 340 KB | Output is correct |
23 | Correct | 1 ms | 340 KB | Output is correct |
24 | Correct | 1 ms | 340 KB | Output is correct |
25 | Correct | 0 ms | 308 KB | Output is correct |
26 | Correct | 1 ms | 212 KB | Output is correct |
27 | Correct | 1 ms | 340 KB | Output is correct |
28 | Correct | 1 ms | 340 KB | Output is correct |
29 | Correct | 1 ms | 340 KB | Output is correct |
30 | Correct | 1 ms | 312 KB | Output is correct |
31 | Correct | 1 ms | 308 KB | Output is correct |
32 | Correct | 0 ms | 340 KB | Output is correct |
33 | Correct | 1 ms | 292 KB | Output is correct |
34 | Correct | 0 ms | 340 KB | Output is correct |
35 | Correct | 1 ms | 340 KB | Output is correct |
36 | Correct | 1 ms | 340 KB | Output is correct |
37 | Correct | 0 ms | 340 KB | Output is correct |
38 | Correct | 1 ms | 212 KB | Output is correct |
39 | Correct | 1 ms | 212 KB | Output is correct |
40 | Correct | 1 ms | 340 KB | Output is correct |
41 | Correct | 1 ms | 212 KB | Output is correct |
42 | Correct | 1 ms | 212 KB | Output is correct |
43 | Correct | 0 ms | 340 KB | Output is correct |
44 | Correct | 1 ms | 312 KB | Output is correct |
45 | Correct | 1 ms | 312 KB | Output is correct |
46 | Correct | 1 ms | 312 KB | Output is correct |
47 | Correct | 1 ms | 340 KB | Output is correct |
48 | Correct | 1 ms | 340 KB | Output is correct |
49 | Correct | 1 ms | 340 KB | Output is correct |
50 | Correct | 1 ms | 316 KB | Output is correct |
51 | Correct | 1 ms | 312 KB | Output is correct |
52 | Correct | 1 ms | 468 KB | Output is correct |
53 | Correct | 1 ms | 468 KB | Output is correct |
54 | Correct | 4 ms | 1992 KB | Output is correct |
55 | Correct | 4 ms | 1900 KB | Output is correct |
56 | Correct | 42 ms | 14128 KB | Output is correct |
57 | Correct | 32 ms | 12572 KB | Output is correct |
58 | Correct | 40 ms | 14364 KB | Output is correct |
59 | Correct | 39 ms | 13980 KB | Output is correct |
60 | Correct | 43 ms | 14220 KB | Output is correct |
61 | Correct | 31 ms | 12460 KB | Output is correct |
62 | Correct | 39 ms | 14228 KB | Output is correct |
63 | Correct | 36 ms | 14184 KB | Output is correct |
64 | Correct | 38 ms | 14212 KB | Output is correct |
65 | Correct | 41 ms | 14364 KB | Output is correct |
66 | Correct | 39 ms | 14180 KB | Output is correct |
67 | Correct | 39 ms | 13912 KB | Output is correct |
68 | Correct | 38 ms | 14156 KB | Output is correct |
69 | Correct | 1 ms | 212 KB | Output is correct |
70 | Correct | 0 ms | 340 KB | Output is correct |
71 | Correct | 37 ms | 14168 KB | Output is correct |
72 | Correct | 40 ms | 14120 KB | Output is correct |
73 | Correct | 37 ms | 14172 KB | Output is correct |
74 | Correct | 1 ms | 212 KB | Output is correct |
75 | Correct | 0 ms | 252 KB | Output is correct |
76 | Correct | 1 ms | 340 KB | Output is correct |
77 | Correct | 1 ms | 340 KB | Output is correct |
78 | Correct | 78 ms | 18772 KB | Output is correct |
79 | Correct | 52 ms | 15008 KB | Output is correct |
80 | Correct | 71 ms | 18772 KB | Output is correct |
81 | Correct | 38 ms | 14704 KB | Output is correct |
82 | Correct | 76 ms | 18656 KB | Output is correct |
83 | Correct | 78 ms | 16016 KB | Output is correct |
84 | Correct | 1 ms | 340 KB | Output is correct |
85 | Correct | 1 ms | 340 KB | Output is correct |
86 | Correct | 1 ms | 340 KB | Output is correct |
87 | Correct | 1 ms | 340 KB | Output is correct |
88 | Correct | 1 ms | 468 KB | Output is correct |
89 | Correct | 1 ms | 468 KB | Output is correct |
90 | Correct | 1 ms | 452 KB | Output is correct |
91 | Correct | 1 ms | 468 KB | Output is correct |
92 | Correct | 1 ms | 444 KB | Output is correct |
93 | Correct | 1 ms | 340 KB | Output is correct |
94 | Correct | 1 ms | 444 KB | Output is correct |
95 | Correct | 1 ms | 468 KB | Output is correct |
96 | Correct | 1 ms | 468 KB | Output is correct |
97 | Correct | 1 ms | 468 KB | Output is correct |
98 | Correct | 1 ms | 468 KB | Output is correct |
99 | Correct | 1 ms | 468 KB | Output is correct |
100 | Correct | 1 ms | 468 KB | Output is correct |
101 | Correct | 7 ms | 1984 KB | Output is correct |
102 | Correct | 7 ms | 1728 KB | Output is correct |
103 | Correct | 139 ms | 18680 KB | Output is correct |
104 | Correct | 85 ms | 17140 KB | Output is correct |
105 | Correct | 95 ms | 16424 KB | Output is correct |
106 | Correct | 77 ms | 18772 KB | Output is correct |
107 | Correct | 58 ms | 15088 KB | Output is correct |
108 | Correct | 57 ms | 13876 KB | Output is correct |
109 | Correct | 42 ms | 14972 KB | Output is correct |
110 | Correct | 38 ms | 14204 KB | Output is correct |
111 | Correct | 78 ms | 17980 KB | Output is correct |
112 | Correct | 92 ms | 17320 KB | Output is correct |
113 | Correct | 63 ms | 15116 KB | Output is correct |
114 | Correct | 76 ms | 18736 KB | Output is correct |
115 | Correct | 83 ms | 18752 KB | Output is correct |