oj.uz

Submission #484768

# Submission time Handle Problem Language Result Execution time Memory
484768 2021-11-05T11:45:15 Z dynam1c Arranging Shoes (IOI19_shoes) C++17
100 / 100
 289 ms 32072 KB 
#include "shoes.h"

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define endl "\n"
#define all(x) x.begin(),x.end()

struct Fenwick {
        int n;
        vector<int> arr;
        Fenwick(int n) : n(n), arr(n+1) {}
        int query(int p) {
                int acc = 0;
                for (; p > 0; p -= p & -p)
                        acc += arr[p];
                return acc;
        }
        int query(int l, int r) {
                return query(r) - query(l);
        }
        void update(int i, int x) { 
                for (i++; i <= n; i += i & -i)
                        arr[i] += x;
        }
};

long long count_swaps(std::vector<int> s) {
        int n = s.size();
        map<int, set<int>> m;
        vector<bool> done(n);
        for (int i = 0; i < n; i++)
                m[s[i]].insert(i);
        Fenwick fen(n); 
        for (int i = 0; i < n; i++)
                fen.update(i, 1);
        ll res = 0;
        for (int i = 0; i < n; i++) {
                if (done[i]) continue;
                res += s[i] > 0;
                auto it = m[-s[i]].lower_bound(i);
                int j = *it;
                m[-s[i]].erase(it);
                done[i] = true;
                fen.update(i, -1);
                done[j] = true;
                fen.update(j, -1);
                res += fen.query(i, j);
        }
        return res;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 292 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 292 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 296 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 292 KB Output is correct
3 Correct 1 ms 288 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 6 ms 1484 KB Output is correct
21 Correct 6 ms 1484 KB Output is correct
22 Correct 76 ms 13212 KB Output is correct
23 Correct 86 ms 13348 KB Output is correct
24 Correct 71 ms 13324 KB Output is correct
25 Correct 73 ms 13124 KB Output is correct
26 Correct 66 ms 13224 KB Output is correct
27 Correct 92 ms 13112 KB Output is correct
28 Correct 70 ms 13320 KB Output is correct
29 Correct 73 ms 13360 KB Output is correct
30 Correct 86 ms 13216 KB Output is correct
31 Correct 69 ms 13224 KB Output is correct
32 Correct 70 ms 13252 KB Output is correct
33 Correct 68 ms 13096 KB Output is correct
34 Correct 71 ms 13244 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 77 ms 13476 KB Output is correct
38 Correct 71 ms 13300 KB Output is correct
39 Correct 69 ms 13288 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 275 ms 32068 KB Output is correct
6 Correct 128 ms 14948 KB Output is correct
7 Correct 219 ms 32024 KB Output is correct
8 Correct 61 ms 13276 KB Output is correct
9 Correct 218 ms 32040 KB Output is correct
10 Correct 188 ms 22724 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 292 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 296 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 0 ms 204 KB Output is correct
38 Correct 0 ms 292 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 588 KB Output is correct
42 Correct 1 ms 588 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 2 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 2 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 300 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 588 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 292 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 296 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 288 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 0 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 6 ms 1484 KB Output is correct
55 Correct 6 ms 1484 KB Output is correct
56 Correct 76 ms 13212 KB Output is correct
57 Correct 86 ms 13348 KB Output is correct
58 Correct 71 ms 13324 KB Output is correct
59 Correct 73 ms 13124 KB Output is correct
60 Correct 66 ms 13224 KB Output is correct
61 Correct 92 ms 13112 KB Output is correct
62 Correct 70 ms 13320 KB Output is correct
63 Correct 73 ms 13360 KB Output is correct
64 Correct 86 ms 13216 KB Output is correct
65 Correct 69 ms 13224 KB Output is correct
66 Correct 70 ms 13252 KB Output is correct
67 Correct 68 ms 13096 KB Output is correct
68 Correct 71 ms 13244 KB Output is correct
69 Correct 0 ms 204 KB Output is correct
70 Correct 0 ms 204 KB Output is correct
71 Correct 77 ms 13476 KB Output is correct
72 Correct 71 ms 13300 KB Output is correct
73 Correct 69 ms 13288 KB Output is correct
74 Correct 1 ms 204 KB Output is correct
75 Correct 0 ms 204 KB Output is correct
76 Correct 0 ms 204 KB Output is correct
77 Correct 0 ms 204 KB Output is correct
78 Correct 275 ms 32068 KB Output is correct
79 Correct 128 ms 14948 KB Output is correct
80 Correct 219 ms 32024 KB Output is correct
81 Correct 61 ms 13276 KB Output is correct
82 Correct 218 ms 32040 KB Output is correct
83 Correct 188 ms 22724 KB Output is correct
84 Correct 0 ms 204 KB Output is correct
85 Correct 0 ms 292 KB Output is correct
86 Correct 0 ms 204 KB Output is correct
87 Correct 1 ms 332 KB Output is correct
88 Correct 1 ms 588 KB Output is correct
89 Correct 1 ms 588 KB Output is correct
90 Correct 1 ms 460 KB Output is correct
91 Correct 2 ms 460 KB Output is correct
92 Correct 1 ms 460 KB Output is correct
93 Correct 2 ms 460 KB Output is correct
94 Correct 1 ms 460 KB Output is correct
95 Correct 1 ms 460 KB Output is correct
96 Correct 1 ms 332 KB Output is correct
97 Correct 1 ms 300 KB Output is correct
98 Correct 1 ms 332 KB Output is correct
99 Correct 1 ms 588 KB Output is correct
100 Correct 1 ms 588 KB Output is correct
101 Correct 12 ms 3176 KB Output is correct
102 Correct 11 ms 1868 KB Output is correct
103 Correct 289 ms 31956 KB Output is correct
104 Correct 262 ms 32068 KB Output is correct
105 Correct 231 ms 23972 KB Output is correct
106 Correct 229 ms 32020 KB Output is correct
107 Correct 159 ms 15392 KB Output is correct
108 Correct 157 ms 17348 KB Output is correct
109 Correct 74 ms 13212 KB Output is correct
110 Correct 72 ms 13236 KB Output is correct
111 Correct 199 ms 29888 KB Output is correct
112 Correct 264 ms 27888 KB Output is correct
113 Correct 125 ms 15584 KB Output is correct
114 Correct 192 ms 32072 KB Output is correct
115 Correct 229 ms 32036 KB Output is correct