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Submission #201603

# Submission time Handle Problem Language Result Execution time Memory
201603 2020-02-11T12:00:55 Z khulegub Arranging Shoes (IOI19_shoes) C++14
100 / 100
 116 ms 19832 KB 
#include "shoes.h"
#include <bits/stdc++.h>

#define mp make_pair
#define pb push_back
#define xx first
#define yy second
#define ll(x) (x*2) + 1
#define rr(x) (x*2) + 2

using namespace std;

typedef long long i64;


int n;

bool taken[200010];

int ft[200010];

int update(int x){
	x++;
	while (x < n){
		ft[x]++;
		x += x & (-x);
	}
	return 0;
}

int query(int x){
	int ret = 0;
	while (x > 0){
		ret += ft[x];
		x -= x & (-x);
	}
	return ret;
}

int query(int l, int r){
	l++;
	r++;
	return query(r) - query(l - 1);
}

vector<int> lefts[200010], rights[200010];

i64 count_swaps(std::vector<int> s) {

	i64 ans = 0LL;
	n = s.size();

	for (int i = n - 1; i >= 0; i--){
		if (s[i] < 0) lefts[abs(s[i])].pb(i);
		else rights[abs(s[i])].pb(i);
	}

	for (int i = 0; i < n; i++){
		if (!taken[i]){
			taken[i] = true;
			int other;
			if (s[i] < 0){
				other = rights[abs(s[i])].back();

				rights[abs(s[i])].pop_back();
				lefts[abs(s[i])].pop_back();
			}
			else{
				other = lefts[abs(s[i])].back();
				
				rights[abs(s[i])].pop_back();
				lefts[abs(s[i])].pop_back();
				ans++;
			}
			taken[other] = true;

			ans += other - i - 1;

			ans -= query(i + 1, other - 1);

			update(other);
		}
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 9720 KB Output is correct
2 Correct 11 ms 9720 KB Output is correct

Subtask #2
20.0 / 20.0

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

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 9720 KB Output is correct
2 Correct 11 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 11 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 11 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 11 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 11 ms 9720 KB Output is correct
11 Correct 11 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 11 ms 9724 KB Output is correct
14 Correct 11 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 11 ms 9848 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 11 ms 9720 KB Output is correct
19 Correct 12 ms 9724 KB Output is correct
20 Correct 15 ms 10104 KB Output is correct
21 Correct 14 ms 10104 KB Output is correct
22 Correct 48 ms 13184 KB Output is correct
23 Correct 45 ms 13292 KB Output is correct
24 Correct 49 ms 13204 KB Output is correct
25 Correct 44 ms 12784 KB Output is correct
26 Correct 48 ms 13420 KB Output is correct
27 Correct 45 ms 13420 KB Output is correct
28 Correct 45 ms 12968 KB Output is correct
29 Correct 45 ms 12912 KB Output is correct
30 Correct 46 ms 12912 KB Output is correct
31 Correct 50 ms 13316 KB Output is correct
32 Correct 45 ms 12912 KB Output is correct
33 Correct 46 ms 12912 KB Output is correct
34 Correct 46 ms 12912 KB Output is correct
35 Correct 11 ms 9720 KB Output is correct
36 Correct 11 ms 9720 KB Output is correct
37 Correct 45 ms 12912 KB Output is correct
38 Correct 45 ms 12912 KB Output is correct
39 Correct 46 ms 13036 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 11 ms 9720 KB Output is correct
5 Correct 82 ms 18168 KB Output is correct
6 Correct 64 ms 13560 KB Output is correct
7 Correct 80 ms 18296 KB Output is correct
8 Correct 47 ms 12980 KB Output is correct
9 Correct 78 ms 18312 KB Output is correct
10 Correct 82 ms 15224 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 9720 KB Output is correct
2 Correct 11 ms 9720 KB Output is correct
3 Correct 12 ms 9848 KB Output is correct
4 Correct 11 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 11 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 11 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 11 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 11 ms 9720 KB Output is correct
14 Correct 11 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 11 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 11 ms 9720 KB Output is correct
19 Correct 11 ms 9720 KB Output is correct
20 Correct 11 ms 9720 KB Output is correct
21 Correct 11 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 11 ms 9720 KB Output is correct
25 Correct 11 ms 9720 KB Output is correct
26 Correct 11 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 11 ms 9720 KB Output is correct
29 Correct 11 ms 9848 KB Output is correct
30 Correct 11 ms 9720 KB Output is correct
31 Correct 11 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 11 ms 9720 KB Output is correct
35 Correct 11 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 10 ms 9720 KB Output is correct
38 Correct 11 ms 9720 KB Output is correct
39 Correct 10 ms 9720 KB Output is correct
40 Correct 12 ms 9720 KB Output is correct
41 Correct 11 ms 9720 KB Output is correct
42 Correct 11 ms 9720 KB Output is correct
43 Correct 12 ms 9720 KB Output is correct
44 Correct 11 ms 9720 KB Output is correct
45 Correct 11 ms 9720 KB Output is correct
46 Correct 11 ms 9720 KB Output is correct
47 Correct 11 ms 9720 KB Output is correct
48 Correct 11 ms 9720 KB Output is correct
49 Correct 11 ms 9720 KB Output is correct
50 Correct 11 ms 9720 KB Output is correct
51 Correct 11 ms 9720 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 11 ms 9720 KB Output is correct
2 Correct 11 ms 9720 KB Output is correct
3 Correct 12 ms 9848 KB Output is correct
4 Correct 11 ms 9720 KB Output is correct
5 Correct 11 ms 9720 KB Output is correct
6 Correct 11 ms 9720 KB Output is correct
7 Correct 11 ms 9720 KB Output is correct
8 Correct 11 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 11 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 11 ms 9720 KB Output is correct
14 Correct 11 ms 9720 KB Output is correct
15 Correct 11 ms 9720 KB Output is correct
16 Correct 11 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 11 ms 9720 KB Output is correct
19 Correct 11 ms 9720 KB Output is correct
20 Correct 11 ms 9720 KB Output is correct
21 Correct 11 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 11 ms 9720 KB Output is correct
25 Correct 11 ms 9720 KB Output is correct
26 Correct 11 ms 9720 KB Output is correct
27 Correct 11 ms 9720 KB Output is correct
28 Correct 11 ms 9720 KB Output is correct
29 Correct 11 ms 9848 KB Output is correct
30 Correct 11 ms 9720 KB Output is correct
31 Correct 11 ms 9720 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 11 ms 9720 KB Output is correct
35 Correct 11 ms 9720 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 10 ms 9720 KB Output is correct
38 Correct 11 ms 9720 KB Output is correct
39 Correct 11 ms 9720 KB Output is correct
40 Correct 11 ms 9720 KB Output is correct
41 Correct 11 ms 9720 KB Output is correct
42 Correct 11 ms 9720 KB Output is correct
43 Correct 11 ms 9720 KB Output is correct
44 Correct 11 ms 9720 KB Output is correct
45 Correct 11 ms 9720 KB Output is correct
46 Correct 11 ms 9720 KB Output is correct
47 Correct 11 ms 9724 KB Output is correct
48 Correct 11 ms 9720 KB Output is correct
49 Correct 11 ms 9720 KB Output is correct
50 Correct 11 ms 9848 KB Output is correct
51 Correct 11 ms 9720 KB Output is correct
52 Correct 11 ms 9720 KB Output is correct
53 Correct 12 ms 9724 KB Output is correct
54 Correct 15 ms 10104 KB Output is correct
55 Correct 14 ms 10104 KB Output is correct
56 Correct 48 ms 13184 KB Output is correct
57 Correct 45 ms 13292 KB Output is correct
58 Correct 49 ms 13204 KB Output is correct
59 Correct 44 ms 12784 KB Output is correct
60 Correct 48 ms 13420 KB Output is correct
61 Correct 45 ms 13420 KB Output is correct
62 Correct 45 ms 12968 KB Output is correct
63 Correct 45 ms 12912 KB Output is correct
64 Correct 46 ms 12912 KB Output is correct
65 Correct 50 ms 13316 KB Output is correct
66 Correct 45 ms 12912 KB Output is correct
67 Correct 46 ms 12912 KB Output is correct
68 Correct 46 ms 12912 KB Output is correct
69 Correct 11 ms 9720 KB Output is correct
70 Correct 11 ms 9720 KB Output is correct
71 Correct 45 ms 12912 KB Output is correct
72 Correct 45 ms 12912 KB Output is correct
73 Correct 46 ms 13036 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 11 ms 9720 KB Output is correct
78 Correct 82 ms 18168 KB Output is correct
79 Correct 64 ms 13560 KB Output is correct
80 Correct 80 ms 18296 KB Output is correct
81 Correct 47 ms 12980 KB Output is correct
82 Correct 78 ms 18312 KB Output is correct
83 Correct 82 ms 15224 KB Output is correct
84 Correct 10 ms 9720 KB Output is correct
85 Correct 11 ms 9720 KB Output is correct
86 Correct 10 ms 9720 KB Output is correct
87 Correct 12 ms 9720 KB Output is correct
88 Correct 11 ms 9720 KB Output is correct
89 Correct 11 ms 9720 KB Output is correct
90 Correct 12 ms 9720 KB Output is correct
91 Correct 11 ms 9720 KB Output is correct
92 Correct 11 ms 9720 KB Output is correct
93 Correct 11 ms 9720 KB Output is correct
94 Correct 11 ms 9720 KB Output is correct
95 Correct 11 ms 9720 KB Output is correct
96 Correct 11 ms 9720 KB Output is correct
97 Correct 11 ms 9720 KB Output is correct
98 Correct 11 ms 9720 KB Output is correct
99 Correct 11 ms 9848 KB Output is correct
100 Correct 12 ms 9848 KB Output is correct
101 Correct 17 ms 10616 KB Output is correct
102 Correct 17 ms 10232 KB Output is correct
103 Correct 116 ms 19832 KB Output is correct
104 Correct 92 ms 19704 KB Output is correct
105 Correct 102 ms 17028 KB Output is correct
106 Correct 78 ms 19320 KB Output is correct
107 Correct 74 ms 15096 KB Output is correct
108 Correct 80 ms 15480 KB Output is correct
109 Correct 46 ms 14128 KB Output is correct
110 Correct 45 ms 14064 KB Output is correct
111 Correct 86 ms 18680 KB Output is correct
112 Correct 110 ms 18552 KB Output is correct
113 Correct 69 ms 14712 KB Output is correct
114 Correct 83 ms 19320 KB Output is correct
115 Correct 78 ms 19320 KB Output is correct