oj.uz

답안 #154592

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
154592 2019-09-23T04:53:55 Z juckter Arranging Shoes (IOI19_shoes) C++14
100 / 100
 109 ms 15736 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> ii;

const int MAXN = 2e5 + 5;
int BIT[MAXN];

void upd(int p, int v) {
    for(; p < MAXN; p += (p & -p)) BIT[p] += v;
}

int sum(int p) {
    int tot = 0;
    for(; p; p -= (p & -p))
        tot += BIT[p];
    return tot;
}

long long count_swaps(vector<int> s) {
    int n = s.size() / 2;
    vector<vector<int>> positions(2*n + 2);
    vector<int> taken(2*n);
    fill(taken.begin(), taken.end(), 0);
    fill(BIT, BIT + MAXN, 0);
    for(int i = 1; i <= 2*n; i++)
        upd(i, 1);
    for(int i = 2*n - 1; i >= 0; i--)
        positions[s[i] + n].push_back(i);
    long long ans = 0;
    for(int i = 0; i < 2*n; i++) {
        if(taken[i])
            continue;
        int p = positions[n - s[i]].back();
        positions[n - s[i]].pop_back();
        positions[s[i] + n].pop_back();
        if(s[i] > 0) {
            ans += sum(p);
            upd(i + 1, -1);
        }
        else {
            upd(i + 1, -1);
            ans += sum(p);
        }
        upd(p + 1, -1);
        taken[i] = taken[p] = 1;
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1144 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1144 KB Output is correct
3 Correct 3 ms 1144 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1144 KB Output is correct
6 Correct 3 ms 1144 KB Output is correct
7 Correct 3 ms 1016 KB Output is correct
8 Correct 3 ms 1144 KB Output is correct
9 Correct 3 ms 1144 KB Output is correct
10 Correct 3 ms 1064 KB Output is correct
11 Correct 3 ms 1144 KB Output is correct
12 Correct 3 ms 1144 KB Output is correct
13 Correct 3 ms 1144 KB Output is correct
14 Correct 3 ms 1144 KB Output is correct
15 Correct 3 ms 1144 KB Output is correct
16 Correct 3 ms 1016 KB Output is correct
17 Correct 3 ms 1144 KB Output is correct
18 Correct 3 ms 1144 KB Output is correct
19 Correct 3 ms 1144 KB Output is correct
20 Correct 3 ms 1144 KB Output is correct
21 Correct 3 ms 1144 KB Output is correct
22 Correct 3 ms 1144 KB Output is correct
23 Correct 3 ms 1144 KB Output is correct
24 Correct 3 ms 1144 KB Output is correct
25 Correct 3 ms 1144 KB Output is correct
26 Correct 3 ms 1144 KB Output is correct
27 Correct 3 ms 1016 KB Output is correct
28 Correct 3 ms 1144 KB Output is correct
29 Correct 3 ms 1144 KB Output is correct
30 Correct 3 ms 1016 KB Output is correct
31 Correct 4 ms 1144 KB Output is correct
32 Correct 3 ms 1144 KB Output is correct
33 Correct 3 ms 1144 KB Output is correct
34 Correct 3 ms 1144 KB Output is correct
35 Correct 4 ms 1144 KB Output is correct
36 Correct 5 ms 1144 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1144 KB Output is correct
3 Correct 3 ms 1144 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1144 KB Output is correct
6 Correct 3 ms 1144 KB Output is correct
7 Correct 5 ms 1144 KB Output is correct
8 Correct 3 ms 1144 KB Output is correct
9 Correct 3 ms 1164 KB Output is correct
10 Correct 3 ms 1016 KB Output is correct
11 Correct 3 ms 1144 KB Output is correct
12 Correct 3 ms 1144 KB Output is correct
13 Correct 3 ms 1132 KB Output is correct
14 Correct 3 ms 1168 KB Output is correct
15 Correct 3 ms 1144 KB Output is correct
16 Correct 3 ms 1144 KB Output is correct
17 Correct 3 ms 1148 KB Output is correct
18 Correct 3 ms 1144 KB Output is correct
19 Correct 3 ms 1144 KB Output is correct
20 Correct 8 ms 2168 KB Output is correct
21 Correct 7 ms 2040 KB Output is correct
22 Correct 48 ms 10376 KB Output is correct
23 Correct 43 ms 10484 KB Output is correct
24 Correct 49 ms 10392 KB Output is correct
25 Correct 44 ms 10352 KB Output is correct
26 Correct 48 ms 10356 KB Output is correct
27 Correct 42 ms 10228 KB Output is correct
28 Correct 47 ms 10624 KB Output is correct
29 Correct 46 ms 10612 KB Output is correct
30 Correct 46 ms 10608 KB Output is correct
31 Correct 48 ms 10380 KB Output is correct
32 Correct 46 ms 10864 KB Output is correct
33 Correct 46 ms 10484 KB Output is correct
34 Correct 46 ms 10608 KB Output is correct
35 Correct 3 ms 1016 KB Output is correct
36 Correct 3 ms 1144 KB Output is correct
37 Correct 49 ms 10608 KB Output is correct
38 Correct 45 ms 10608 KB Output is correct
39 Correct 46 ms 10608 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1144 KB Output is correct
3 Correct 3 ms 1076 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 95 ms 15608 KB Output is correct
6 Correct 66 ms 10876 KB Output is correct
7 Correct 93 ms 15608 KB Output is correct
8 Correct 50 ms 10296 KB Output is correct
9 Correct 102 ms 15636 KB Output is correct
10 Correct 96 ms 12536 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1144 KB Output is correct
3 Correct 3 ms 1144 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1144 KB Output is correct
6 Correct 3 ms 1144 KB Output is correct
7 Correct 3 ms 1016 KB Output is correct
8 Correct 3 ms 1144 KB Output is correct
9 Correct 3 ms 1144 KB Output is correct
10 Correct 3 ms 1064 KB Output is correct
11 Correct 3 ms 1144 KB Output is correct
12 Correct 3 ms 1144 KB Output is correct
13 Correct 3 ms 1144 KB Output is correct
14 Correct 3 ms 1144 KB Output is correct
15 Correct 3 ms 1144 KB Output is correct
16 Correct 3 ms 1016 KB Output is correct
17 Correct 3 ms 1144 KB Output is correct
18 Correct 3 ms 1144 KB Output is correct
19 Correct 3 ms 1144 KB Output is correct
20 Correct 3 ms 1144 KB Output is correct
21 Correct 3 ms 1144 KB Output is correct
22 Correct 3 ms 1144 KB Output is correct
23 Correct 3 ms 1144 KB Output is correct
24 Correct 3 ms 1144 KB Output is correct
25 Correct 3 ms 1144 KB Output is correct
26 Correct 3 ms 1144 KB Output is correct
27 Correct 3 ms 1016 KB Output is correct
28 Correct 3 ms 1144 KB Output is correct
29 Correct 3 ms 1144 KB Output is correct
30 Correct 3 ms 1016 KB Output is correct
31 Correct 4 ms 1144 KB Output is correct
32 Correct 3 ms 1144 KB Output is correct
33 Correct 3 ms 1144 KB Output is correct
34 Correct 3 ms 1144 KB Output is correct
35 Correct 4 ms 1144 KB Output is correct
36 Correct 5 ms 1144 KB Output is correct
37 Correct 3 ms 1144 KB Output is correct
38 Correct 3 ms 1144 KB Output is correct
39 Correct 3 ms 1144 KB Output is correct
40 Correct 3 ms 1144 KB Output is correct
41 Correct 3 ms 1272 KB Output is correct
42 Correct 4 ms 1272 KB Output is correct
43 Correct 3 ms 1272 KB Output is correct
44 Correct 3 ms 1272 KB Output is correct
45 Correct 3 ms 1144 KB Output is correct
46 Correct 3 ms 1144 KB Output is correct
47 Correct 4 ms 1272 KB Output is correct
48 Correct 3 ms 1272 KB Output is correct
49 Correct 4 ms 1272 KB Output is correct
50 Correct 3 ms 1144 KB Output is correct
51 Correct 3 ms 1144 KB Output is correct
52 Correct 4 ms 1272 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1144 KB Output is correct
3 Correct 3 ms 1144 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1144 KB Output is correct
6 Correct 3 ms 1144 KB Output is correct
7 Correct 3 ms 1016 KB Output is correct
8 Correct 3 ms 1144 KB Output is correct
9 Correct 3 ms 1144 KB Output is correct
10 Correct 3 ms 1064 KB Output is correct
11 Correct 3 ms 1144 KB Output is correct
12 Correct 3 ms 1144 KB Output is correct
13 Correct 3 ms 1144 KB Output is correct
14 Correct 3 ms 1144 KB Output is correct
15 Correct 3 ms 1144 KB Output is correct
16 Correct 3 ms 1016 KB Output is correct
17 Correct 3 ms 1144 KB Output is correct
18 Correct 3 ms 1144 KB Output is correct
19 Correct 3 ms 1144 KB Output is correct
20 Correct 3 ms 1144 KB Output is correct
21 Correct 3 ms 1144 KB Output is correct
22 Correct 3 ms 1144 KB Output is correct
23 Correct 3 ms 1144 KB Output is correct
24 Correct 3 ms 1144 KB Output is correct
25 Correct 3 ms 1144 KB Output is correct
26 Correct 3 ms 1144 KB Output is correct
27 Correct 3 ms 1016 KB Output is correct
28 Correct 3 ms 1144 KB Output is correct
29 Correct 3 ms 1144 KB Output is correct
30 Correct 3 ms 1016 KB Output is correct
31 Correct 4 ms 1144 KB Output is correct
32 Correct 3 ms 1144 KB Output is correct
33 Correct 3 ms 1144 KB Output is correct
34 Correct 3 ms 1144 KB Output is correct
35 Correct 4 ms 1144 KB Output is correct
36 Correct 5 ms 1144 KB Output is correct
37 Correct 3 ms 1144 KB Output is correct
38 Correct 3 ms 1144 KB Output is correct
39 Correct 3 ms 1144 KB Output is correct
40 Correct 3 ms 1144 KB Output is correct
41 Correct 5 ms 1144 KB Output is correct
42 Correct 3 ms 1144 KB Output is correct
43 Correct 3 ms 1164 KB Output is correct
44 Correct 3 ms 1016 KB Output is correct
45 Correct 3 ms 1144 KB Output is correct
46 Correct 3 ms 1144 KB Output is correct
47 Correct 3 ms 1132 KB Output is correct
48 Correct 3 ms 1168 KB Output is correct
49 Correct 3 ms 1144 KB Output is correct
50 Correct 3 ms 1144 KB Output is correct
51 Correct 3 ms 1148 KB Output is correct
52 Correct 3 ms 1144 KB Output is correct
53 Correct 3 ms 1144 KB Output is correct
54 Correct 8 ms 2168 KB Output is correct
55 Correct 7 ms 2040 KB Output is correct
56 Correct 48 ms 10376 KB Output is correct
57 Correct 43 ms 10484 KB Output is correct
58 Correct 49 ms 10392 KB Output is correct
59 Correct 44 ms 10352 KB Output is correct
60 Correct 48 ms 10356 KB Output is correct
61 Correct 42 ms 10228 KB Output is correct
62 Correct 47 ms 10624 KB Output is correct
63 Correct 46 ms 10612 KB Output is correct
64 Correct 46 ms 10608 KB Output is correct
65 Correct 48 ms 10380 KB Output is correct
66 Correct 46 ms 10864 KB Output is correct
67 Correct 46 ms 10484 KB Output is correct
68 Correct 46 ms 10608 KB Output is correct
69 Correct 3 ms 1016 KB Output is correct
70 Correct 3 ms 1144 KB Output is correct
71 Correct 49 ms 10608 KB Output is correct
72 Correct 45 ms 10608 KB Output is correct
73 Correct 46 ms 10608 KB Output is correct
74 Correct 3 ms 1016 KB Output is correct
75 Correct 3 ms 1144 KB Output is correct
76 Correct 3 ms 1076 KB Output is correct
77 Correct 3 ms 1144 KB Output is correct
78 Correct 95 ms 15608 KB Output is correct
79 Correct 66 ms 10876 KB Output is correct
80 Correct 93 ms 15608 KB Output is correct
81 Correct 50 ms 10296 KB Output is correct
82 Correct 102 ms 15636 KB Output is correct
83 Correct 96 ms 12536 KB Output is correct
84 Correct 3 ms 1144 KB Output is correct
85 Correct 3 ms 1144 KB Output is correct
86 Correct 3 ms 1144 KB Output is correct
87 Correct 3 ms 1144 KB Output is correct
88 Correct 3 ms 1272 KB Output is correct
89 Correct 4 ms 1272 KB Output is correct
90 Correct 3 ms 1272 KB Output is correct
91 Correct 3 ms 1272 KB Output is correct
92 Correct 3 ms 1144 KB Output is correct
93 Correct 3 ms 1144 KB Output is correct
94 Correct 4 ms 1272 KB Output is correct
95 Correct 3 ms 1272 KB Output is correct
96 Correct 4 ms 1272 KB Output is correct
97 Correct 3 ms 1144 KB Output is correct
98 Correct 3 ms 1144 KB Output is correct
99 Correct 4 ms 1272 KB Output is correct
100 Correct 3 ms 1272 KB Output is correct
101 Correct 10 ms 2424 KB Output is correct
102 Correct 9 ms 2040 KB Output is correct
103 Correct 109 ms 15712 KB Output is correct
104 Correct 92 ms 15736 KB Output is correct
105 Correct 100 ms 12916 KB Output is correct
106 Correct 96 ms 15608 KB Output is correct
107 Correct 74 ms 11000 KB Output is correct
108 Correct 73 ms 11384 KB Output is correct
109 Correct 47 ms 10736 KB Output is correct
110 Correct 46 ms 10608 KB Output is correct
111 Correct 89 ms 14972 KB Output is correct
112 Correct 109 ms 14328 KB Output is correct
113 Correct 73 ms 11036 KB Output is correct
114 Correct 93 ms 15736 KB Output is correct
115 Correct 95 ms 15712 KB Output is correct