oj.uz

Submission #784153

# Submission time Handle Problem Language Result Execution time Memory
784153 2023-07-15T19:00:38 Z Alfraganus Arranging Shoes (IOI19_shoes) C++14
100 / 100
 111 ms 16120 KB 
#include "shoes.h"
// #include "grader.cpp"
#include <bits/stdc++.h>
using namespace std;

struct SegTree {

	int size = 1;
	vector<int> mins;

	SegTree(int n){
		while(size < n)size *= 2;
		mins.resize(2 * size);
	}

	void set(int i, int x, int lx, int rx){
		if(rx - lx == 1){
			mins[x] = 1;
			return;
		}
		int m = (lx + rx) >> 1;
		if(i < m)set(i, 2 * x + 1, lx, m);
		else set(i, 2 * x + 2, m, rx);
		mins[x] = mins[2 * x + 1] + mins[2 * x + 2];
	}

	void set(int i){
		set(i, 0, 0, size);
	}

	int sum(int l, int r, int x, int lx, int rx){
		if(l <= lx and rx <= r)return mins[x];
		if(r <= lx or rx <= l)return 0;
		int m = (lx + rx) >> 1;
		return sum(l, r, 2 * x + 1, lx, m) + sum(l, r, 2 * x + 2, m, rx);
	}

	int sum(int l, int r){
		return sum(l, r, 0, 0, size);
	}

	void printtree(){
		for(auto x : mins)cout<< x << ' ';
		cout<<endl;
	}
};

long long count_swaps(vector<int> a) {
	long long n = a.size() / 2;
	if(n == 1)return a[0] > 0;
	vector<vector<int>> pos(2 * n + 1);
	for(int i = 2 * n - 1; i >= 0; i --)
		pos[a[i] + n].push_back(i);
	long long ans = 0;
	SegTree s(2 * n);
	for(int i = 0; i < 2 * n; i ++){
		if(a[i] != 0){
			ans += pos[-a[i] + n].back() - i - s.sum(i, pos[-a[i] + n].back());
			if(a[i] < 0)ans --;
			s.set(pos[-a[i] + n].back());
			s.set(i);
			a[pos[-a[i] + n].back()] = 0;
			pos[-a[i] + n].pop_back();
			pos[a[i] + n].pop_back();
			a[i] = 0;
		}
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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 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 1 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 300 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 296 KB Output is correct
26 Correct 1 ms 300 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 296 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 296 KB Output is correct
16 Correct 1 ms 300 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 5 ms 1460 KB Output is correct
21 Correct 5 ms 1464 KB Output is correct
22 Correct 47 ms 10672 KB Output is correct
23 Correct 44 ms 10776 KB Output is correct
24 Correct 46 ms 10792 KB Output is correct
25 Correct 52 ms 10560 KB Output is correct
26 Correct 48 ms 10784 KB Output is correct
27 Correct 40 ms 10688 KB Output is correct
28 Correct 47 ms 10804 KB Output is correct
29 Correct 53 ms 10792 KB Output is correct
30 Correct 53 ms 10700 KB Output is correct
31 Correct 52 ms 10804 KB Output is correct
32 Correct 49 ms 10692 KB Output is correct
33 Correct 48 ms 10540 KB Output is correct
34 Correct 48 ms 10784 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 48 ms 10756 KB Output is correct
38 Correct 50 ms 10804 KB Output is correct
39 Correct 47 ms 10692 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory 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 1 ms 212 KB Output is correct
5 Correct 80 ms 14880 KB Output is correct
6 Correct 63 ms 10164 KB Output is correct
7 Correct 70 ms 15000 KB Output is correct
8 Correct 57 ms 9696 KB Output is correct
9 Correct 78 ms 14972 KB Output is correct
10 Correct 63 ms 11852 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory 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 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 1 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 300 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 296 KB Output is correct
26 Correct 1 ms 300 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 296 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 2 ms 340 KB Output is correct
44 Correct 2 ms 308 KB Output is correct
45 Correct 2 ms 340 KB Output is correct
46 Correct 1 ms 312 KB Output is correct
47 Correct 1 ms 308 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 308 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 440 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory 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 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 1 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 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 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 300 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 296 KB Output is correct
26 Correct 1 ms 300 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 296 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 300 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 0 ms 296 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 296 KB Output is correct
49 Correct 1 ms 296 KB Output is correct
50 Correct 1 ms 300 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 340 KB Output is correct
53 Correct 1 ms 340 KB Output is correct
54 Correct 5 ms 1460 KB Output is correct
55 Correct 5 ms 1464 KB Output is correct
56 Correct 47 ms 10672 KB Output is correct
57 Correct 44 ms 10776 KB Output is correct
58 Correct 46 ms 10792 KB Output is correct
59 Correct 52 ms 10560 KB Output is correct
60 Correct 48 ms 10784 KB Output is correct
61 Correct 40 ms 10688 KB Output is correct
62 Correct 47 ms 10804 KB Output is correct
63 Correct 53 ms 10792 KB Output is correct
64 Correct 53 ms 10700 KB Output is correct
65 Correct 52 ms 10804 KB Output is correct
66 Correct 49 ms 10692 KB Output is correct
67 Correct 48 ms 10540 KB Output is correct
68 Correct 48 ms 10784 KB Output is correct
69 Correct 1 ms 300 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 48 ms 10756 KB Output is correct
72 Correct 50 ms 10804 KB Output is correct
73 Correct 47 ms 10692 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 1 ms 212 KB Output is correct
78 Correct 80 ms 14880 KB Output is correct
79 Correct 63 ms 10164 KB Output is correct
80 Correct 70 ms 15000 KB Output is correct
81 Correct 57 ms 9696 KB Output is correct
82 Correct 78 ms 14972 KB Output is correct
83 Correct 63 ms 11852 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 1 ms 212 KB Output is correct
86 Correct 1 ms 212 KB Output is correct
87 Correct 1 ms 296 KB Output is correct
88 Correct 1 ms 340 KB Output is correct
89 Correct 1 ms 340 KB Output is correct
90 Correct 2 ms 340 KB Output is correct
91 Correct 2 ms 308 KB Output is correct
92 Correct 2 ms 340 KB Output is correct
93 Correct 1 ms 312 KB Output is correct
94 Correct 1 ms 308 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 308 KB Output is correct
98 Correct 1 ms 340 KB Output is correct
99 Correct 1 ms 440 KB Output is correct
100 Correct 1 ms 340 KB Output is correct
101 Correct 7 ms 1776 KB Output is correct
102 Correct 6 ms 1380 KB Output is correct
103 Correct 89 ms 16116 KB Output is correct
104 Correct 60 ms 16028 KB Output is correct
105 Correct 66 ms 13352 KB Output is correct
106 Correct 66 ms 16076 KB Output is correct
107 Correct 54 ms 11440 KB Output is correct
108 Correct 50 ms 11824 KB Output is correct
109 Correct 48 ms 11056 KB Output is correct
110 Correct 54 ms 10792 KB Output is correct
111 Correct 62 ms 15400 KB Output is correct
112 Correct 111 ms 14648 KB Output is correct
113 Correct 95 ms 11440 KB Output is correct
114 Correct 68 ms 16084 KB Output is correct
115 Correct 75 ms 16120 KB Output is correct