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답안 #695270

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
695270 2023-02-04T20:55:43 Z allin27x Arranging Shoes (IOI19_shoes) C++17
100 / 100
 480 ms 27396 KB 
#include <bits/stdc++.h>
using namespace std;

long long count_swaps(vector<int> S){
    long long res = 0;
    int n = S.size();
    long long t = 0;
    unordered_map<int, set<int>> f;
    vector<pair<int, int>> pairs(n/2);
    int r = n/2-1;
    for (int i=n-1; i>=0; i--){
        if (!f[S[i]].size()){
            f[-S[i]].insert(-i);
        } else {
            int p = -*(f[S[i]].lower_bound(-(int)1e6));
            pairs[r] = make_pair(i,p); r--;
            if (S[i]<0) res+=p-i-1; else res+=p-i;
            f[S[i]].erase(-p);
        }
    }
    deque<int> sp;
    for (int i=0; i<n/2; i++){
        int MIN = pairs[i].first;
        int MAX = pairs[i].second;
        if (sp.size()==0){
            sp.push_front(MAX); continue;
        }
        int min_a = 0; int min_b = sp.size()-1;
        while (min_a<min_b){
            int m = (min_a + min_b)/2;
            if (sp[m]>=MIN) min_b = m;
            else min_a = m+1;
        }
        int max_a = 0; int max_b = sp.size()-1;
        while (max_a<max_b){
            int m = (max_a + max_b +1)/2;
            if (sp[m]>MAX) max_b = m-1;
            else max_a = m;
        }
        if (sp[0]>MAX){
            sp.push_front(MAX);
            continue;
        }
        sp.insert(sp.begin()+max_a+1, MAX);
        if (sp[min_a]<MIN) continue;
        t+=max(max_a-min_a+1,0);
    }

    res-=t;



    return res;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 304 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 300 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 304 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 296 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 300 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 296 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 300 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 296 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 5 ms 596 KB Output is correct
21 Correct 6 ms 596 KB Output is correct
22 Correct 45 ms 4260 KB Output is correct
23 Correct 37 ms 4272 KB Output is correct
24 Correct 43 ms 4300 KB Output is correct
25 Correct 61 ms 8484 KB Output is correct
26 Correct 44 ms 4272 KB Output is correct
27 Correct 34 ms 4012 KB Output is correct
28 Correct 61 ms 8616 KB Output is correct
29 Correct 61 ms 8572 KB Output is correct
30 Correct 60 ms 8616 KB Output is correct
31 Correct 48 ms 4276 KB Output is correct
32 Correct 62 ms 8616 KB Output is correct
33 Correct 62 ms 8396 KB Output is correct
34 Correct 78 ms 8556 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 64 ms 8636 KB Output is correct
38 Correct 67 ms 8620 KB Output is correct
39 Correct 69 ms 8640 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 113 ms 26224 KB Output is correct
6 Correct 63 ms 10132 KB Output is correct
7 Correct 114 ms 27368 KB Output is correct
8 Correct 59 ms 8616 KB Output is correct
9 Correct 126 ms 27396 KB Output is correct
10 Correct 86 ms 17832 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 304 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 300 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 304 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 296 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 300 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 296 KB Output is correct
41 Correct 1 ms 436 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 2 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 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 468 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 304 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 300 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 304 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 296 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 300 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 292 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 296 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 296 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 5 ms 596 KB Output is correct
55 Correct 6 ms 596 KB Output is correct
56 Correct 45 ms 4260 KB Output is correct
57 Correct 37 ms 4272 KB Output is correct
58 Correct 43 ms 4300 KB Output is correct
59 Correct 61 ms 8484 KB Output is correct
60 Correct 44 ms 4272 KB Output is correct
61 Correct 34 ms 4012 KB Output is correct
62 Correct 61 ms 8616 KB Output is correct
63 Correct 61 ms 8572 KB Output is correct
64 Correct 60 ms 8616 KB Output is correct
65 Correct 48 ms 4276 KB Output is correct
66 Correct 62 ms 8616 KB Output is correct
67 Correct 62 ms 8396 KB Output is correct
68 Correct 78 ms 8556 KB Output is correct
69 Correct 0 ms 212 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 64 ms 8636 KB Output is correct
72 Correct 67 ms 8620 KB Output is correct
73 Correct 69 ms 8640 KB Output is correct
74 Correct 1 ms 300 KB Output is correct
75 Correct 1 ms 300 KB Output is correct
76 Correct 1 ms 304 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 113 ms 26224 KB Output is correct
79 Correct 63 ms 10132 KB Output is correct
80 Correct 114 ms 27368 KB Output is correct
81 Correct 59 ms 8616 KB Output is correct
82 Correct 126 ms 27396 KB Output is correct
83 Correct 86 ms 17832 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 0 ms 212 KB Output is correct
86 Correct 1 ms 212 KB Output is correct
87 Correct 1 ms 296 KB Output is correct
88 Correct 1 ms 436 KB Output is correct
89 Correct 1 ms 468 KB Output is correct
90 Correct 1 ms 468 KB Output is correct
91 Correct 1 ms 468 KB Output is correct
92 Correct 1 ms 340 KB Output is correct
93 Correct 1 ms 340 KB Output is correct
94 Correct 2 ms 340 KB Output is correct
95 Correct 1 ms 340 KB Output is correct
96 Correct 1 ms 340 KB Output is correct
97 Correct 1 ms 340 KB Output is correct
98 Correct 1 ms 340 KB Output is correct
99 Correct 1 ms 468 KB Output is correct
100 Correct 1 ms 468 KB Output is correct
101 Correct 14 ms 2388 KB Output is correct
102 Correct 8 ms 1108 KB Output is correct
103 Correct 480 ms 24984 KB Output is correct
104 Correct 98 ms 22616 KB Output is correct
105 Correct 86 ms 14500 KB Output is correct
106 Correct 106 ms 27308 KB Output is correct
107 Correct 64 ms 6408 KB Output is correct
108 Correct 44 ms 8340 KB Output is correct
109 Correct 56 ms 8624 KB Output is correct
110 Correct 59 ms 8628 KB Output is correct
111 Correct 121 ms 26040 KB Output is correct
112 Correct 395 ms 21452 KB Output is correct
113 Correct 369 ms 11004 KB Output is correct
114 Correct 107 ms 27384 KB Output is correct
115 Correct 109 ms 27380 KB Output is correct