oj.uz

Submission #568494

# Submission time Handle Problem Language Result Execution time Memory
568494 2022-05-25T15:04:17 Z stevancv Arranging Shoes (IOI19_shoes) C++14
100 / 100
 91 ms 16532 KB 
#include <bits/stdc++.h>
#include "shoes.h"
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
using namespace std;
const int N = 1e5 + 2;
const ll mod = 1e9 + 7;
int bit[2 * N];
void Add(int x) {
    for (; x < 2 * N; x += x & (-x)) bit[x]++;
}
int Get(int x) {
    int ans = 0;
    for (; x > 0; x -= x & (-x)) ans += bit[x];
    return ans;
}
long long count_swaps(vector<int> s) {
    int n =  s.size() / 2;
    vector<vector<int>> pa(n), pb(n);
    for (int i = 0; i < 2 * n; i++) {
        if (s[i] > 0) {
            s[i] -= 1;
            pb[s[i]].push_back(i);
        }
        else {
            s[i] += 1;
            pa[abs(s[i])].push_back(i);
        }
    }
    ll ans = 0;
    vector<array<int, 2>> p;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < pa[i].size(); j++) {
            if (pa[i][j] > pb[i][j]) {
                swap(pa[i][j], pb[i][j]);
                ans += 1;
            }
            p.push_back({pa[i][j], pb[i][j]});
        }
    }
    sort(p.begin(), p.end());
    vector<int> all;
    for (int i = 0; i < n; i++) {
        all.push_back(p[i][0]);
        all.push_back(p[i][1]);
    }
    for (int i = all.size() - 1; i >= 0; i--) {
        ans += Get(all[i] + 1);
        Add(all[i] + 1);
    }
    return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:35:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         for (int j = 0; j < pa[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 340 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 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 312 KB Output is correct
22 Correct 1 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 1 ms 340 KB Output is correct
26 Correct 1 ms 316 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 340 KB Output is correct
31 Correct 0 ms 308 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 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 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 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 4 ms 1476 KB Output is correct
21 Correct 5 ms 1492 KB Output is correct
22 Correct 38 ms 10984 KB Output is correct
23 Correct 40 ms 10976 KB Output is correct
24 Correct 40 ms 11144 KB Output is correct
25 Correct 48 ms 10788 KB Output is correct
26 Correct 41 ms 11068 KB Output is correct
27 Correct 35 ms 10852 KB Output is correct
28 Correct 36 ms 11092 KB Output is correct
29 Correct 33 ms 11052 KB Output is correct
30 Correct 34 ms 11052 KB Output is correct
31 Correct 39 ms 11008 KB Output is correct
32 Correct 46 ms 11024 KB Output is correct
33 Correct 51 ms 10788 KB Output is correct
34 Correct 40 ms 11052 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 36 ms 11040 KB Output is correct
38 Correct 35 ms 11040 KB Output is correct
39 Correct 35 ms 11048 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 91 ms 16500 KB Output is correct
6 Correct 49 ms 11692 KB Output is correct
7 Correct 61 ms 16448 KB Output is correct
8 Correct 38 ms 11084 KB Output is correct
9 Correct 66 ms 16432 KB Output is correct
10 Correct 83 ms 13472 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 340 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 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 312 KB Output is correct
22 Correct 1 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 1 ms 340 KB Output is correct
26 Correct 1 ms 316 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 340 KB Output is correct
31 Correct 0 ms 308 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 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 468 KB Output is correct
44 Correct 1 ms 444 KB Output is correct
45 Correct 1 ms 456 KB Output is correct
46 Correct 1 ms 468 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 324 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

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 340 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 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 312 KB Output is correct
22 Correct 1 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 1 ms 340 KB Output is correct
26 Correct 1 ms 316 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 340 KB Output is correct
31 Correct 0 ms 308 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 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 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 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 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 4 ms 1476 KB Output is correct
55 Correct 5 ms 1492 KB Output is correct
56 Correct 38 ms 10984 KB Output is correct
57 Correct 40 ms 10976 KB Output is correct
58 Correct 40 ms 11144 KB Output is correct
59 Correct 48 ms 10788 KB Output is correct
60 Correct 41 ms 11068 KB Output is correct
61 Correct 35 ms 10852 KB Output is correct
62 Correct 36 ms 11092 KB Output is correct
63 Correct 33 ms 11052 KB Output is correct
64 Correct 34 ms 11052 KB Output is correct
65 Correct 39 ms 11008 KB Output is correct
66 Correct 46 ms 11024 KB Output is correct
67 Correct 51 ms 10788 KB Output is correct
68 Correct 40 ms 11052 KB Output is correct
69 Correct 1 ms 340 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 36 ms 11040 KB Output is correct
72 Correct 35 ms 11040 KB Output is correct
73 Correct 35 ms 11048 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 1 ms 340 KB Output is correct
76 Correct 1 ms 340 KB Output is correct
77 Correct 1 ms 340 KB Output is correct
78 Correct 91 ms 16500 KB Output is correct
79 Correct 49 ms 11692 KB Output is correct
80 Correct 61 ms 16448 KB Output is correct
81 Correct 38 ms 11084 KB Output is correct
82 Correct 66 ms 16432 KB Output is correct
83 Correct 83 ms 13472 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 468 KB Output is correct
91 Correct 1 ms 444 KB Output is correct
92 Correct 1 ms 456 KB Output is correct
93 Correct 1 ms 468 KB Output is correct
94 Correct 1 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 324 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 7 ms 1876 KB Output is correct
102 Correct 6 ms 1604 KB Output is correct
103 Correct 88 ms 16512 KB Output is correct
104 Correct 64 ms 16428 KB Output is correct
105 Correct 66 ms 13800 KB Output is correct
106 Correct 62 ms 16452 KB Output is correct
107 Correct 51 ms 11800 KB Output is correct
108 Correct 64 ms 12200 KB Output is correct
109 Correct 62 ms 11968 KB Output is correct
110 Correct 35 ms 11048 KB Output is correct
111 Correct 59 ms 15820 KB Output is correct
112 Correct 71 ms 15124 KB Output is correct
113 Correct 52 ms 11852 KB Output is correct
114 Correct 66 ms 16532 KB Output is correct
115 Correct 87 ms 16448 KB Output is correct