oj.uz

답안 #577900

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
577900 2022-06-15T12:09:10 Z mi_ni_ Arranging Shoes (IOI19_shoes) C++17
100 / 100
 469 ms 546612 KB 
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;

long long merge_util(vector<int> &arr, int l, int r) {
    int mid = (l+r)/2;
    long long cnt = 0;
    int it1 = l, it2 = mid+1;
    while(it2 <= r) {
        while(it1 <= mid && arr[it1] < arr[it2]) it1++;
        cnt += (mid+1-it1);
        it2++;
    }
    vector<int> temp(r-l+1);
    merge(arr.begin()+l, arr.begin()+mid+1, arr.begin()+mid+1, arr.begin()+r+1, temp.begin());
    copy(temp.begin(), temp.end(), arr.begin()+l);
    return cnt;
}
 
long long find_inversions(vector<int> &arr, int l, int r) {
    if(r <= l) return 0ll;
    int mid = (l+r)/2;
    long long ans = find_inversions(arr, l, mid) + find_inversions(arr, mid+1, r);
    ans += merge_util(arr, l, r);
    return ans;
}
 
long long find_swaps(vector<int> from, vector<int> to) {
    assert(from.size() == to.size());
    int n = from.size();
    vector<stack<int>> s(2*n + 5);
    for(int ind = n-1; ind >= 0; ind--) s[to[ind]+n].push(ind);
    vector<int> pos;
    for(auto i:from) {
        pos.push_back(s[i+n].top());
        s[i+n].pop();
    }
    return find_inversions(pos, 0, n-1);
}

long long count_swaps(vector<int> S) {
    int n = S.size();
    vector<int> to;
    vector<stack<int>> m(2*n + 5);
    for(int i = n-1; i>=0; i--) m[S[i]+n].push(i);
    vector<bool> done(n, 0);
    for(int i=0; i<n; i++) {
        if(!done[i]) {
            done[i] = 1;
            to.push_back(-abs(S[i]));
            to.push_back(abs(S[i]));
            m[S[i]+n].pop();
            done[m[-S[i]+n].top()] = 1;
            m[-S[i]+n].pop();
        }
    }
    return find_swaps(S, to);
}

Subtask #1
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

Subtask #2
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 1 ms 212 KB Output is correct
4 Correct 0 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 0 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 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 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 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct

Subtask #3
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 1 ms 212 KB Output is correct
4 Correct 0 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 0 ms 212 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 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 852 KB Output is correct
17 Correct 1 ms 1876 KB Output is correct
18 Correct 4 ms 5716 KB Output is correct
19 Correct 4 ms 5716 KB Output is correct
20 Correct 38 ms 54732 KB Output is correct
21 Correct 46 ms 54800 KB Output is correct
22 Correct 469 ms 545272 KB Output is correct
23 Correct 348 ms 545336 KB Output is correct
24 Correct 367 ms 545248 KB Output is correct
25 Correct 358 ms 545312 KB Output is correct
26 Correct 418 ms 545320 KB Output is correct
27 Correct 378 ms 545252 KB Output is correct
28 Correct 374 ms 545344 KB Output is correct
29 Correct 352 ms 545344 KB Output is correct
30 Correct 387 ms 545324 KB Output is correct
31 Correct 358 ms 545292 KB Output is correct
32 Correct 347 ms 545396 KB Output is correct
33 Correct 339 ms 545324 KB Output is correct
34 Correct 350 ms 545252 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 364 ms 545464 KB Output is correct
38 Correct 358 ms 545404 KB Output is correct
39 Correct 342 ms 545420 KB Output is correct

Subtask #4
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 0 ms 212 KB Output is correct
5 Correct 415 ms 544632 KB Output is correct
6 Correct 372 ms 544732 KB Output is correct
7 Correct 404 ms 544688 KB Output is correct
8 Correct 348 ms 545352 KB Output is correct
9 Correct 435 ms 544684 KB Output is correct
10 Correct 406 ms 544636 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 1 ms 212 KB Output is correct
4 Correct 0 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 0 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 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 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 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 0 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 468 KB Output is correct
39 Correct 1 ms 852 KB Output is correct
40 Correct 2 ms 1876 KB Output is correct
41 Correct 4 ms 5716 KB Output is correct
42 Correct 4 ms 5716 KB Output is correct
43 Correct 4 ms 5716 KB Output is correct
44 Correct 4 ms 5648 KB Output is correct
45 Correct 3 ms 5716 KB Output is correct
46 Correct 5 ms 5716 KB Output is correct
47 Correct 3 ms 5716 KB Output is correct
48 Correct 4 ms 5716 KB Output is correct
49 Correct 3 ms 5716 KB Output is correct
50 Correct 4 ms 5716 KB Output is correct
51 Correct 4 ms 5716 KB Output is correct
52 Correct 4 ms 5716 KB Output is correct

Subtask #6
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 1 ms 212 KB Output is correct
4 Correct 0 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 0 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 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 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 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 0 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 0 ms 212 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 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 1 ms 852 KB Output is correct
51 Correct 1 ms 1876 KB Output is correct
52 Correct 4 ms 5716 KB Output is correct
53 Correct 4 ms 5716 KB Output is correct
54 Correct 38 ms 54732 KB Output is correct
55 Correct 46 ms 54800 KB Output is correct
56 Correct 469 ms 545272 KB Output is correct
57 Correct 348 ms 545336 KB Output is correct
58 Correct 367 ms 545248 KB Output is correct
59 Correct 358 ms 545312 KB Output is correct
60 Correct 418 ms 545320 KB Output is correct
61 Correct 378 ms 545252 KB Output is correct
62 Correct 374 ms 545344 KB Output is correct
63 Correct 352 ms 545344 KB Output is correct
64 Correct 387 ms 545324 KB Output is correct
65 Correct 358 ms 545292 KB Output is correct
66 Correct 347 ms 545396 KB Output is correct
67 Correct 339 ms 545324 KB Output is correct
68 Correct 350 ms 545252 KB Output is correct
69 Correct 0 ms 212 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 364 ms 545464 KB Output is correct
72 Correct 358 ms 545404 KB Output is correct
73 Correct 342 ms 545420 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 0 ms 212 KB Output is correct
76 Correct 0 ms 212 KB Output is correct
77 Correct 0 ms 212 KB Output is correct
78 Correct 415 ms 544632 KB Output is correct
79 Correct 372 ms 544732 KB Output is correct
80 Correct 404 ms 544688 KB Output is correct
81 Correct 348 ms 545352 KB Output is correct
82 Correct 435 ms 544684 KB Output is correct
83 Correct 406 ms 544636 KB Output is correct
84 Correct 0 ms 340 KB Output is correct
85 Correct 1 ms 468 KB Output is correct
86 Correct 1 ms 852 KB Output is correct
87 Correct 2 ms 1876 KB Output is correct
88 Correct 4 ms 5716 KB Output is correct
89 Correct 4 ms 5716 KB Output is correct
90 Correct 4 ms 5716 KB Output is correct
91 Correct 4 ms 5648 KB Output is correct
92 Correct 3 ms 5716 KB Output is correct
93 Correct 5 ms 5716 KB Output is correct
94 Correct 3 ms 5716 KB Output is correct
95 Correct 4 ms 5716 KB Output is correct
96 Correct 3 ms 5716 KB Output is correct
97 Correct 4 ms 5716 KB Output is correct
98 Correct 4 ms 5716 KB Output is correct
99 Correct 4 ms 5716 KB Output is correct
100 Correct 4 ms 5716 KB Output is correct
101 Correct 39 ms 54860 KB Output is correct
102 Correct 36 ms 54860 KB Output is correct
103 Correct 433 ms 546068 KB Output is correct
104 Correct 426 ms 545972 KB Output is correct
105 Correct 433 ms 545936 KB Output is correct
106 Correct 393 ms 546084 KB Output is correct
107 Correct 401 ms 545984 KB Output is correct
108 Correct 398 ms 545960 KB Output is correct
109 Correct 338 ms 546612 KB Output is correct
110 Correct 339 ms 546548 KB Output is correct
111 Correct 409 ms 545928 KB Output is correct
112 Correct 422 ms 545936 KB Output is correct
113 Correct 409 ms 545956 KB Output is correct
114 Correct 407 ms 546000 KB Output is correct
115 Correct 407 ms 545984 KB Output is correct