oj.uz

Submission #811105

# Submission time Handle Problem Language Result Execution time Memory
811105 2023-08-06T23:54:01 Z OAleksa Arranging Shoes (IOI19_shoes) C++14
100 / 100
 84 ms 34368 KB 
#include <bits/stdc++.h>
#include "shoes.h"
 
#define f first
#define s second
using namespace std; 
 
const int maxn = 2e5 + 69;
set<int> l[maxn], r[maxn];
vector<int> f(maxn);
vector<int> pr(maxn);
void add(int v, int x) {
	for(int i = v;i < maxn;i += (i & -i))
		f[i] += x;
}

int qry(int v) {
	int res = 0;
	for(int i = v;i >= 1;i -= (i & -i)) 
		res += f[i];
	return res;
}

long long count_swaps(vector<int> s) {
	int n = s.size();
	vector<int> a(n + 1);
	for(int i = 0;i < n;i++) {
		a[i + 1] = s[i];
	}
	vector<int> vis(n + 1);
	vector<pair<int, int>> par;
	for(int i = 1;i <= n;i++) {
		if(a[i] < 0)
			l[abs(a[i])].insert(i);
		else
			r[a[i]].insert(i);
	}
	for(int i = 1;i <= n;i++) {
		if(a[i] < 0 && !vis[i]) {
			auto u = *r[abs(a[i])].upper_bound(i);
			r[abs(a[i])].erase(u);
			par.push_back({i, u});
			vis[i] = vis[u] = 1;
		}
		else if(a[i] > 0 && !vis[i]) {
			auto u = *l[a[i]].upper_bound(i);
			l[a[i]].erase(u);
			par.push_back({i, u});
			vis[i] = vis[u] = 1;
		}
	}
	long long ans = 0;
	for(auto x : par) {
		int levi = x.f + qry(x.f);
		int desni = x.s + qry(x.s);
		if(a[x.f] < 0) 
			ans += (desni - levi - 1);
		else 
			ans += (desni - levi);
		add(x.f + 1, 1);
		add(x.s, -1);
	}
	return ans;
}
 
 
 
// int main()
// {
	  // ios_base::sync_with_stdio(false);
	  // cin.tie(0);
	  // cout.tie(0);
	  // int tt = 1;
		// //cin >> tt;
	  // while(tt--) {
			// int n;
			// cin >> n;
			// vector<int> a(2 * n);
			// for(int i = 0;i < 2 * n;i++)
				// cin >> a[i];
			// cout << count_swaps(a) << endl;
		// }
    // return 0;
// }

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 20564 KB Output is correct
2 Correct 10 ms 20672 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 20564 KB Output is correct
2 Correct 10 ms 20672 KB Output is correct
3 Correct 8 ms 20564 KB Output is correct
4 Correct 8 ms 20564 KB Output is correct
5 Correct 9 ms 20564 KB Output is correct
6 Correct 8 ms 20564 KB Output is correct
7 Correct 9 ms 20564 KB Output is correct
8 Correct 9 ms 20564 KB Output is correct
9 Correct 8 ms 20564 KB Output is correct
10 Correct 10 ms 20564 KB Output is correct
11 Correct 9 ms 20640 KB Output is correct
12 Correct 9 ms 20612 KB Output is correct
13 Correct 9 ms 20676 KB Output is correct
14 Correct 9 ms 20668 KB Output is correct
15 Correct 9 ms 20564 KB Output is correct
16 Correct 9 ms 20564 KB Output is correct
17 Correct 9 ms 20564 KB Output is correct
18 Correct 9 ms 20564 KB Output is correct
19 Correct 9 ms 20576 KB Output is correct
20 Correct 9 ms 20644 KB Output is correct
21 Correct 9 ms 20552 KB Output is correct
22 Correct 9 ms 20564 KB Output is correct
23 Correct 11 ms 20564 KB Output is correct
24 Correct 9 ms 20612 KB Output is correct
25 Correct 9 ms 20552 KB Output is correct
26 Correct 9 ms 20564 KB Output is correct
27 Correct 9 ms 20564 KB Output is correct
28 Correct 9 ms 20564 KB Output is correct
29 Correct 10 ms 20564 KB Output is correct
30 Correct 8 ms 20564 KB Output is correct
31 Correct 9 ms 20564 KB Output is correct
32 Correct 9 ms 20592 KB Output is correct
33 Correct 9 ms 20564 KB Output is correct
34 Correct 9 ms 20564 KB Output is correct
35 Correct 9 ms 20672 KB Output is correct
36 Correct 9 ms 20564 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 20564 KB Output is correct
2 Correct 10 ms 20672 KB Output is correct
3 Correct 9 ms 20564 KB Output is correct
4 Correct 9 ms 20564 KB Output is correct
5 Correct 9 ms 20564 KB Output is correct
6 Correct 9 ms 20564 KB Output is correct
7 Correct 8 ms 20564 KB Output is correct
8 Correct 9 ms 20616 KB Output is correct
9 Correct 9 ms 20644 KB Output is correct
10 Correct 9 ms 20564 KB Output is correct
11 Correct 9 ms 20592 KB Output is correct
12 Correct 9 ms 20632 KB Output is correct
13 Correct 9 ms 20564 KB Output is correct
14 Correct 9 ms 20564 KB Output is correct
15 Correct 9 ms 20564 KB Output is correct
16 Correct 8 ms 20564 KB Output is correct
17 Correct 9 ms 20692 KB Output is correct
18 Correct 10 ms 20692 KB Output is correct
19 Correct 9 ms 20692 KB Output is correct
20 Correct 15 ms 22100 KB Output is correct
21 Correct 14 ms 22036 KB Output is correct
22 Correct 66 ms 34324 KB Output is correct
23 Correct 78 ms 34320 KB Output is correct
24 Correct 69 ms 34252 KB Output is correct
25 Correct 65 ms 33180 KB Output is correct
26 Correct 63 ms 34240 KB Output is correct
27 Correct 67 ms 34248 KB Output is correct
28 Correct 64 ms 33096 KB Output is correct
29 Correct 65 ms 33092 KB Output is correct
30 Correct 65 ms 33088 KB Output is correct
31 Correct 65 ms 34348 KB Output is correct
32 Correct 67 ms 33168 KB Output is correct
33 Correct 65 ms 33080 KB Output is correct
34 Correct 65 ms 33112 KB Output is correct
35 Correct 10 ms 20564 KB Output is correct
36 Correct 9 ms 20564 KB Output is correct
37 Correct 68 ms 33100 KB Output is correct
38 Correct 67 ms 33100 KB Output is correct
39 Correct 65 ms 33184 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 20564 KB Output is correct
2 Correct 8 ms 20564 KB Output is correct
3 Correct 9 ms 20620 KB Output is correct
4 Correct 9 ms 20564 KB Output is correct
5 Correct 53 ms 33164 KB Output is correct
6 Correct 70 ms 33176 KB Output is correct
7 Correct 53 ms 33104 KB Output is correct
8 Correct 62 ms 33064 KB Output is correct
9 Correct 53 ms 33188 KB Output is correct
10 Correct 60 ms 33076 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 20564 KB Output is correct
2 Correct 10 ms 20672 KB Output is correct
3 Correct 8 ms 20564 KB Output is correct
4 Correct 8 ms 20564 KB Output is correct
5 Correct 9 ms 20564 KB Output is correct
6 Correct 8 ms 20564 KB Output is correct
7 Correct 9 ms 20564 KB Output is correct
8 Correct 9 ms 20564 KB Output is correct
9 Correct 8 ms 20564 KB Output is correct
10 Correct 10 ms 20564 KB Output is correct
11 Correct 9 ms 20640 KB Output is correct
12 Correct 9 ms 20612 KB Output is correct
13 Correct 9 ms 20676 KB Output is correct
14 Correct 9 ms 20668 KB Output is correct
15 Correct 9 ms 20564 KB Output is correct
16 Correct 9 ms 20564 KB Output is correct
17 Correct 9 ms 20564 KB Output is correct
18 Correct 9 ms 20564 KB Output is correct
19 Correct 9 ms 20576 KB Output is correct
20 Correct 9 ms 20644 KB Output is correct
21 Correct 9 ms 20552 KB Output is correct
22 Correct 9 ms 20564 KB Output is correct
23 Correct 11 ms 20564 KB Output is correct
24 Correct 9 ms 20612 KB Output is correct
25 Correct 9 ms 20552 KB Output is correct
26 Correct 9 ms 20564 KB Output is correct
27 Correct 9 ms 20564 KB Output is correct
28 Correct 9 ms 20564 KB Output is correct
29 Correct 10 ms 20564 KB Output is correct
30 Correct 8 ms 20564 KB Output is correct
31 Correct 9 ms 20564 KB Output is correct
32 Correct 9 ms 20592 KB Output is correct
33 Correct 9 ms 20564 KB Output is correct
34 Correct 9 ms 20564 KB Output is correct
35 Correct 9 ms 20672 KB Output is correct
36 Correct 9 ms 20564 KB Output is correct
37 Correct 8 ms 20564 KB Output is correct
38 Correct 9 ms 20560 KB Output is correct
39 Correct 9 ms 20564 KB Output is correct
40 Correct 9 ms 20692 KB Output is correct
41 Correct 9 ms 20692 KB Output is correct
42 Correct 9 ms 20684 KB Output is correct
43 Correct 10 ms 20808 KB Output is correct
44 Correct 10 ms 20732 KB Output is correct
45 Correct 9 ms 20804 KB Output is correct
46 Correct 9 ms 20704 KB Output is correct
47 Correct 11 ms 20736 KB Output is correct
48 Correct 9 ms 20692 KB Output is correct
49 Correct 9 ms 20692 KB Output is correct
50 Correct 9 ms 20716 KB Output is correct
51 Correct 10 ms 20692 KB Output is correct
52 Correct 9 ms 20800 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 20564 KB Output is correct
2 Correct 10 ms 20672 KB Output is correct
3 Correct 8 ms 20564 KB Output is correct
4 Correct 8 ms 20564 KB Output is correct
5 Correct 9 ms 20564 KB Output is correct
6 Correct 8 ms 20564 KB Output is correct
7 Correct 9 ms 20564 KB Output is correct
8 Correct 9 ms 20564 KB Output is correct
9 Correct 8 ms 20564 KB Output is correct
10 Correct 10 ms 20564 KB Output is correct
11 Correct 9 ms 20640 KB Output is correct
12 Correct 9 ms 20612 KB Output is correct
13 Correct 9 ms 20676 KB Output is correct
14 Correct 9 ms 20668 KB Output is correct
15 Correct 9 ms 20564 KB Output is correct
16 Correct 9 ms 20564 KB Output is correct
17 Correct 9 ms 20564 KB Output is correct
18 Correct 9 ms 20564 KB Output is correct
19 Correct 9 ms 20576 KB Output is correct
20 Correct 9 ms 20644 KB Output is correct
21 Correct 9 ms 20552 KB Output is correct
22 Correct 9 ms 20564 KB Output is correct
23 Correct 11 ms 20564 KB Output is correct
24 Correct 9 ms 20612 KB Output is correct
25 Correct 9 ms 20552 KB Output is correct
26 Correct 9 ms 20564 KB Output is correct
27 Correct 9 ms 20564 KB Output is correct
28 Correct 9 ms 20564 KB Output is correct
29 Correct 10 ms 20564 KB Output is correct
30 Correct 8 ms 20564 KB Output is correct
31 Correct 9 ms 20564 KB Output is correct
32 Correct 9 ms 20592 KB Output is correct
33 Correct 9 ms 20564 KB Output is correct
34 Correct 9 ms 20564 KB Output is correct
35 Correct 9 ms 20672 KB Output is correct
36 Correct 9 ms 20564 KB Output is correct
37 Correct 9 ms 20564 KB Output is correct
38 Correct 9 ms 20564 KB Output is correct
39 Correct 9 ms 20564 KB Output is correct
40 Correct 9 ms 20564 KB Output is correct
41 Correct 8 ms 20564 KB Output is correct
42 Correct 9 ms 20616 KB Output is correct
43 Correct 9 ms 20644 KB Output is correct
44 Correct 9 ms 20564 KB Output is correct
45 Correct 9 ms 20592 KB Output is correct
46 Correct 9 ms 20632 KB Output is correct
47 Correct 9 ms 20564 KB Output is correct
48 Correct 9 ms 20564 KB Output is correct
49 Correct 9 ms 20564 KB Output is correct
50 Correct 8 ms 20564 KB Output is correct
51 Correct 9 ms 20692 KB Output is correct
52 Correct 10 ms 20692 KB Output is correct
53 Correct 9 ms 20692 KB Output is correct
54 Correct 15 ms 22100 KB Output is correct
55 Correct 14 ms 22036 KB Output is correct
56 Correct 66 ms 34324 KB Output is correct
57 Correct 78 ms 34320 KB Output is correct
58 Correct 69 ms 34252 KB Output is correct
59 Correct 65 ms 33180 KB Output is correct
60 Correct 63 ms 34240 KB Output is correct
61 Correct 67 ms 34248 KB Output is correct
62 Correct 64 ms 33096 KB Output is correct
63 Correct 65 ms 33092 KB Output is correct
64 Correct 65 ms 33088 KB Output is correct
65 Correct 65 ms 34348 KB Output is correct
66 Correct 67 ms 33168 KB Output is correct
67 Correct 65 ms 33080 KB Output is correct
68 Correct 65 ms 33112 KB Output is correct
69 Correct 10 ms 20564 KB Output is correct
70 Correct 9 ms 20564 KB Output is correct
71 Correct 68 ms 33100 KB Output is correct
72 Correct 67 ms 33100 KB Output is correct
73 Correct 65 ms 33184 KB Output is correct
74 Correct 9 ms 20564 KB Output is correct
75 Correct 8 ms 20564 KB Output is correct
76 Correct 9 ms 20620 KB Output is correct
77 Correct 9 ms 20564 KB Output is correct
78 Correct 53 ms 33164 KB Output is correct
79 Correct 70 ms 33176 KB Output is correct
80 Correct 53 ms 33104 KB Output is correct
81 Correct 62 ms 33064 KB Output is correct
82 Correct 53 ms 33188 KB Output is correct
83 Correct 60 ms 33076 KB Output is correct
84 Correct 8 ms 20564 KB Output is correct
85 Correct 9 ms 20560 KB Output is correct
86 Correct 9 ms 20564 KB Output is correct
87 Correct 9 ms 20692 KB Output is correct
88 Correct 9 ms 20692 KB Output is correct
89 Correct 9 ms 20684 KB Output is correct
90 Correct 10 ms 20808 KB Output is correct
91 Correct 10 ms 20732 KB Output is correct
92 Correct 9 ms 20804 KB Output is correct
93 Correct 9 ms 20704 KB Output is correct
94 Correct 11 ms 20736 KB Output is correct
95 Correct 9 ms 20692 KB Output is correct
96 Correct 9 ms 20692 KB Output is correct
97 Correct 9 ms 20716 KB Output is correct
98 Correct 10 ms 20692 KB Output is correct
99 Correct 9 ms 20800 KB Output is correct
100 Correct 9 ms 20692 KB Output is correct
101 Correct 14 ms 22100 KB Output is correct
102 Correct 15 ms 22076 KB Output is correct
103 Correct 71 ms 34244 KB Output is correct
104 Correct 59 ms 34248 KB Output is correct
105 Correct 79 ms 34240 KB Output is correct
106 Correct 53 ms 33868 KB Output is correct
107 Correct 76 ms 34244 KB Output is correct
108 Correct 68 ms 34268 KB Output is correct
109 Correct 59 ms 33188 KB Output is correct
110 Correct 65 ms 33184 KB Output is correct
111 Correct 54 ms 33100 KB Output is correct
112 Correct 84 ms 34368 KB Output is correct
113 Correct 74 ms 34248 KB Output is correct
114 Correct 52 ms 33144 KB Output is correct
115 Correct 56 ms 33100 KB Output is correct