oj.uz

Submission #143890

# Submission time Handle Problem Language Result Execution time Memory
143890 2019-08-15T12:15:08 Z nvmdava Arranging Shoes (IOI19_shoes) C++17
100 / 100
 129 ms 19340 KB 
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
 
const int MAXN = 200010;
 
int bit[MAXN];
void upd(int pos, int val) {
    while(pos < MAXN) {
        bit[pos] += val;
        pos += pos & -pos;
    }
}
int get(int pos) {
    int ret = 0;
    while(pos) {
        ret += bit[pos];
        pos -= pos & -pos;
    }
    return ret;
}
 
bool marked[MAXN];
int arr[MAXN];
vector<int> occurences[2 * MAXN];
long long count_swaps(std::vector<int> s) {
	int n = (int)s.size() / 2;
	int N = 2 * n;
	long long ans = 0;
	int pos = 1;
	for(int i = 1; i <= N; i++) {
        arr[i] = s[i - 1];
	}
	for(int i = N; i >= 1; i--) {
        //printf("hey\n");
        occurences[arr[i] + MAXN].push_back(i);
	}
	for(int _ = 0; _ < n; _++) {
        while(marked[pos]) {
            //printf("%d\n", pos);
            pos += 1;
        }
        int num = arr[pos];
        int target = -num;
        int where = occurences[target + MAXN].back();
       // printf("%d %d %d %d\n", pos, num, target, where);
        marked[pos] = true;
        marked[where] = true;
        occurences[target + MAXN].pop_back();
        occurences[num + MAXN].pop_back();
        int cur_pos = where + (get(MAXN - 1) - get(where));
        ans += cur_pos - (2 * _ + 2);
        if(num > 0) ans += 1;
        //printf("ans = %lld\n", ans);
        upd(where, 1);
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 12 ms 9724 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 11 ms 9724 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 10 ms 9724 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 10 ms 9720 KB Output is correct
25 Correct 10 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 13 ms 9848 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 11 ms 9752 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 13 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9748 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 10 ms 9720 KB Output is correct
13 Correct 10 ms 9748 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 11 ms 9724 KB Output is correct
19 Correct 11 ms 9848 KB Output is correct
20 Correct 14 ms 10232 KB Output is correct
21 Correct 14 ms 10232 KB Output is correct
22 Correct 47 ms 13952 KB Output is correct
23 Correct 45 ms 14064 KB Output is correct
24 Correct 47 ms 13972 KB Output is correct
25 Correct 41 ms 13552 KB Output is correct
26 Correct 47 ms 13936 KB Output is correct
27 Correct 42 ms 14060 KB Output is correct
28 Correct 42 ms 13552 KB Output is correct
29 Correct 42 ms 13552 KB Output is correct
30 Correct 42 ms 13616 KB Output is correct
31 Correct 47 ms 13956 KB Output is correct
32 Correct 42 ms 13552 KB Output is correct
33 Correct 41 ms 13528 KB Output is correct
34 Correct 42 ms 13556 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 42 ms 13548 KB Output is correct
38 Correct 42 ms 13552 KB Output is correct
39 Correct 42 ms 13548 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 88 ms 18908 KB Output is correct
6 Correct 64 ms 14200 KB Output is correct
7 Correct 82 ms 18936 KB Output is correct
8 Correct 46 ms 13592 KB Output is correct
9 Correct 82 ms 18936 KB Output is correct
10 Correct 81 ms 15864 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 12 ms 9724 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 11 ms 9724 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 10 ms 9724 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 10 ms 9720 KB Output is correct
25 Correct 10 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 13 ms 9848 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 11 ms 9752 KB Output is correct
37 Correct 10 ms 9720 KB Output is correct
38 Correct 10 ms 9720 KB Output is correct
39 Correct 10 ms 9720 KB Output is correct
40 Correct 10 ms 9848 KB Output is correct
41 Correct 11 ms 9848 KB Output is correct
42 Correct 11 ms 9848 KB Output is correct
43 Correct 11 ms 9848 KB Output is correct
44 Correct 11 ms 9848 KB Output is correct
45 Correct 13 ms 9848 KB Output is correct
46 Correct 11 ms 9852 KB Output is correct
47 Correct 11 ms 9848 KB Output is correct
48 Correct 11 ms 9848 KB Output is correct
49 Correct 10 ms 9720 KB Output is correct
50 Correct 10 ms 9720 KB Output is correct
51 Correct 11 ms 9768 KB Output is correct
52 Correct 11 ms 9848 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 12 ms 9724 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 11 ms 9724 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 10 ms 9724 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 11 ms 9720 KB Output is correct
24 Correct 10 ms 9720 KB Output is correct
25 Correct 10 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 10 ms 9720 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 13 ms 9848 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9720 KB Output is correct
36 Correct 11 ms 9752 KB Output is correct
37 Correct 10 ms 9720 KB Output is correct
38 Correct 10 ms 9720 KB Output is correct
39 Correct 13 ms 9720 KB Output is correct
40 Correct 10 ms 9720 KB Output is correct
41 Correct 10 ms 9720 KB Output is correct
42 Correct 10 ms 9720 KB Output is correct
43 Correct 10 ms 9748 KB Output is correct
44 Correct 10 ms 9720 KB Output is correct
45 Correct 10 ms 9720 KB Output is correct
46 Correct 10 ms 9720 KB Output is correct
47 Correct 10 ms 9748 KB Output is correct
48 Correct 10 ms 9720 KB Output is correct
49 Correct 10 ms 9720 KB Output is correct
50 Correct 10 ms 9720 KB Output is correct
51 Correct 10 ms 9720 KB Output is correct
52 Correct 11 ms 9724 KB Output is correct
53 Correct 11 ms 9848 KB Output is correct
54 Correct 14 ms 10232 KB Output is correct
55 Correct 14 ms 10232 KB Output is correct
56 Correct 47 ms 13952 KB Output is correct
57 Correct 45 ms 14064 KB Output is correct
58 Correct 47 ms 13972 KB Output is correct
59 Correct 41 ms 13552 KB Output is correct
60 Correct 47 ms 13936 KB Output is correct
61 Correct 42 ms 14060 KB Output is correct
62 Correct 42 ms 13552 KB Output is correct
63 Correct 42 ms 13552 KB Output is correct
64 Correct 42 ms 13616 KB Output is correct
65 Correct 47 ms 13956 KB Output is correct
66 Correct 42 ms 13552 KB Output is correct
67 Correct 41 ms 13528 KB Output is correct
68 Correct 42 ms 13556 KB Output is correct
69 Correct 10 ms 9720 KB Output is correct
70 Correct 10 ms 9720 KB Output is correct
71 Correct 42 ms 13548 KB Output is correct
72 Correct 42 ms 13552 KB Output is correct
73 Correct 42 ms 13548 KB Output is correct
74 Correct 10 ms 9720 KB Output is correct
75 Correct 10 ms 9720 KB Output is correct
76 Correct 10 ms 9720 KB Output is correct
77 Correct 10 ms 9720 KB Output is correct
78 Correct 88 ms 18908 KB Output is correct
79 Correct 64 ms 14200 KB Output is correct
80 Correct 82 ms 18936 KB Output is correct
81 Correct 46 ms 13592 KB Output is correct
82 Correct 82 ms 18936 KB Output is correct
83 Correct 81 ms 15864 KB Output is correct
84 Correct 10 ms 9720 KB Output is correct
85 Correct 10 ms 9720 KB Output is correct
86 Correct 10 ms 9720 KB Output is correct
87 Correct 10 ms 9848 KB Output is correct
88 Correct 11 ms 9848 KB Output is correct
89 Correct 11 ms 9848 KB Output is correct
90 Correct 11 ms 9848 KB Output is correct
91 Correct 11 ms 9848 KB Output is correct
92 Correct 13 ms 9848 KB Output is correct
93 Correct 11 ms 9852 KB Output is correct
94 Correct 11 ms 9848 KB Output is correct
95 Correct 11 ms 9848 KB Output is correct
96 Correct 10 ms 9720 KB Output is correct
97 Correct 10 ms 9720 KB Output is correct
98 Correct 11 ms 9768 KB Output is correct
99 Correct 11 ms 9848 KB Output is correct
100 Correct 11 ms 9848 KB Output is correct
101 Correct 17 ms 10616 KB Output is correct
102 Correct 16 ms 10232 KB Output is correct
103 Correct 102 ms 19312 KB Output is correct
104 Correct 95 ms 19340 KB Output is correct
105 Correct 100 ms 16632 KB Output is correct
106 Correct 89 ms 18936 KB Output is correct
107 Correct 72 ms 14844 KB Output is correct
108 Correct 75 ms 15036 KB Output is correct
109 Correct 44 ms 13616 KB Output is correct
110 Correct 42 ms 13552 KB Output is correct
111 Correct 83 ms 18296 KB Output is correct
112 Correct 129 ms 17912 KB Output is correct
113 Correct 68 ms 14200 KB Output is correct
114 Correct 89 ms 18936 KB Output is correct
115 Correct 79 ms 18936 KB Output is correct