oj.uz

Submission #891451

# Submission time Handle Problem Language Result Execution time Memory
891451 2023-12-23T04:49:10 Z Faisal_Saqib Arranging Shoes (IOI19_shoes) C++17
100 / 100
 247 ms 23336 KB 
#include <vector>
#include <set>
#include <iostream>
#include <map>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
const int N=200010;
vector<int> ind[N];
int pon[N];
bool paired[N];
long long count_swaps(std::vector<int> s)
{
	int n=s.size();
	// set<int> sps;
	// for(auto i:s)
	// 	sps.insert(i);
	// if(n<=(16) or sps.size()<=4)
	// {
	// 	vector<int> sp;
	// 	for(int j=0;j<n;j++)
	// 		ind[s[j]+(n/2)].push_back(j);
	// 	for(auto i:s)
	// 		if(i<0)
	// 			sp.push_back(i);
	// 	long long ans=1e18;
	// 	sort(begin(sp),end(sp));
	// 	int nm=sp.size();
	// 	do{
	// 		for(int j=0;j<=n;j++)
	// 			pon[j]=ind[j].size();
	// 		tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> Set;
	// 		long long swaps=0;
	// 		for(int j=nm-1;j>=0;j--)
	// 		{
	// 			int x=-sp[j]+(n/2);
	// 			pon[x]--;
	// 			int indp=ind[x][pon[x]];
	// 			Set.insert(indp);
	// 			swaps+=Set.order_of_key(indp);
	// 			x=sp[j]+(n/2);
	// 			pon[x]--;
	// 			indp=ind[x][pon[x]];
	// 			Set.insert(indp);
	// 			swaps+=Set.order_of_key(indp);
	// 		}
	// 		ans=min(ans,swaps);
	// 	}while(next_permutation(begin(sp),end(sp)));
	// 	return ans;
	// }
	// else
	// {
		tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> Set;
		for(int j=0;j<n;j++)
		{
			Set.insert(j);
			s[j]+=(n/2);
			ind[s[j]].push_back(j);
			pon[s[j]]=0;
		}
		// -1,1
		// n,-n
		// 2*n , 0
		long long ans=0;
		for(int i=0;i<n;i++)
		{
			if(!paired[i])
			{
				int to_pair=n-s[i];
				int index1=ind[s[i]][pon[s[i]]];
				pon[s[i]]++;
				int index2=ind[to_pair][pon[to_pair]];
				pon[to_pair]++;
				int heavy_way=Set.order_of_key(index2)-Set.order_of_key(index1+1);
				Set.erase(index2);
				paired[index2]=1;
				ans+=heavy_way+(to_pair<(n/2));
			}
		}
		return ans;
	// }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 1 ms 5720 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 1 ms 5724 KB Output is correct
6 Correct 1 ms 5724 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 1 ms 5724 KB Output is correct
12 Correct 1 ms 5724 KB Output is correct
13 Correct 2 ms 5724 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 1 ms 5792 KB Output is correct
16 Correct 1 ms 5720 KB Output is correct
17 Correct 1 ms 5724 KB Output is correct
18 Correct 1 ms 5724 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 2 ms 5724 KB Output is correct
21 Correct 1 ms 5724 KB Output is correct
22 Correct 1 ms 5720 KB Output is correct
23 Correct 1 ms 5720 KB Output is correct
24 Correct 1 ms 5724 KB Output is correct
25 Correct 1 ms 5724 KB Output is correct
26 Correct 1 ms 5724 KB Output is correct
27 Correct 2 ms 5724 KB Output is correct
28 Correct 2 ms 5724 KB Output is correct
29 Correct 1 ms 5724 KB Output is correct
30 Correct 1 ms 5720 KB Output is correct
31 Correct 1 ms 5720 KB Output is correct
32 Correct 1 ms 5724 KB Output is correct
33 Correct 1 ms 5724 KB Output is correct
34 Correct 2 ms 5724 KB Output is correct
35 Correct 1 ms 5724 KB Output is correct
36 Correct 2 ms 5816 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 2 ms 5724 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 1 ms 5724 KB Output is correct
6 Correct 1 ms 5724 KB Output is correct
7 Correct 1 ms 5720 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 1 ms 5724 KB Output is correct
11 Correct 1 ms 5724 KB Output is correct
12 Correct 1 ms 5724 KB Output is correct
13 Correct 1 ms 5724 KB Output is correct
14 Correct 2 ms 5724 KB Output is correct
15 Correct 2 ms 5816 KB Output is correct
16 Correct 2 ms 5724 KB Output is correct
17 Correct 2 ms 5980 KB Output is correct
18 Correct 2 ms 5980 KB Output is correct
19 Correct 2 ms 6008 KB Output is correct
20 Correct 9 ms 7000 KB Output is correct
21 Correct 9 ms 7000 KB Output is correct
22 Correct 167 ms 17744 KB Output is correct
23 Correct 172 ms 17620 KB Output is correct
24 Correct 153 ms 18000 KB Output is correct
25 Correct 129 ms 17608 KB Output is correct
26 Correct 173 ms 17732 KB Output is correct
27 Correct 181 ms 17984 KB Output is correct
28 Correct 131 ms 17612 KB Output is correct
29 Correct 130 ms 17608 KB Output is correct
30 Correct 132 ms 17508 KB Output is correct
31 Correct 155 ms 17752 KB Output is correct
32 Correct 136 ms 17632 KB Output is correct
33 Correct 130 ms 17608 KB Output is correct
34 Correct 131 ms 17636 KB Output is correct
35 Correct 1 ms 5720 KB Output is correct
36 Correct 2 ms 5720 KB Output is correct
37 Correct 132 ms 17516 KB Output is correct
38 Correct 133 ms 17612 KB Output is correct
39 Correct 131 ms 17612 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 5724 KB Output is correct
2 Correct 1 ms 5724 KB Output is correct
3 Correct 1 ms 5724 KB Output is correct
4 Correct 2 ms 5724 KB Output is correct
5 Correct 203 ms 23172 KB Output is correct
6 Correct 85 ms 18440 KB Output is correct
7 Correct 200 ms 23124 KB Output is correct
8 Correct 114 ms 17824 KB Output is correct
9 Correct 203 ms 23120 KB Output is correct
10 Correct 96 ms 20052 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 1 ms 5720 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 1 ms 5724 KB Output is correct
6 Correct 1 ms 5724 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 1 ms 5724 KB Output is correct
12 Correct 1 ms 5724 KB Output is correct
13 Correct 2 ms 5724 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 1 ms 5792 KB Output is correct
16 Correct 1 ms 5720 KB Output is correct
17 Correct 1 ms 5724 KB Output is correct
18 Correct 1 ms 5724 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 2 ms 5724 KB Output is correct
21 Correct 1 ms 5724 KB Output is correct
22 Correct 1 ms 5720 KB Output is correct
23 Correct 1 ms 5720 KB Output is correct
24 Correct 1 ms 5724 KB Output is correct
25 Correct 1 ms 5724 KB Output is correct
26 Correct 1 ms 5724 KB Output is correct
27 Correct 2 ms 5724 KB Output is correct
28 Correct 2 ms 5724 KB Output is correct
29 Correct 1 ms 5724 KB Output is correct
30 Correct 1 ms 5720 KB Output is correct
31 Correct 1 ms 5720 KB Output is correct
32 Correct 1 ms 5724 KB Output is correct
33 Correct 1 ms 5724 KB Output is correct
34 Correct 2 ms 5724 KB Output is correct
35 Correct 1 ms 5724 KB Output is correct
36 Correct 2 ms 5816 KB Output is correct
37 Correct 1 ms 5720 KB Output is correct
38 Correct 1 ms 5724 KB Output is correct
39 Correct 1 ms 5724 KB Output is correct
40 Correct 2 ms 5980 KB Output is correct
41 Correct 2 ms 5980 KB Output is correct
42 Correct 2 ms 6028 KB Output is correct
43 Correct 2 ms 5980 KB Output is correct
44 Correct 2 ms 5980 KB Output is correct
45 Correct 2 ms 5976 KB Output is correct
46 Correct 2 ms 5980 KB Output is correct
47 Correct 2 ms 5980 KB Output is correct
48 Correct 3 ms 5980 KB Output is correct
49 Correct 2 ms 5976 KB Output is correct
50 Correct 2 ms 5980 KB Output is correct
51 Correct 2 ms 5980 KB Output is correct
52 Correct 2 ms 5980 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 2 ms 5724 KB Output is correct
3 Correct 1 ms 5720 KB Output is correct
4 Correct 1 ms 5724 KB Output is correct
5 Correct 1 ms 5724 KB Output is correct
6 Correct 1 ms 5724 KB Output is correct
7 Correct 1 ms 5724 KB Output is correct
8 Correct 1 ms 5724 KB Output is correct
9 Correct 1 ms 5724 KB Output is correct
10 Correct 2 ms 5724 KB Output is correct
11 Correct 1 ms 5724 KB Output is correct
12 Correct 1 ms 5724 KB Output is correct
13 Correct 2 ms 5724 KB Output is correct
14 Correct 1 ms 5724 KB Output is correct
15 Correct 1 ms 5792 KB Output is correct
16 Correct 1 ms 5720 KB Output is correct
17 Correct 1 ms 5724 KB Output is correct
18 Correct 1 ms 5724 KB Output is correct
19 Correct 2 ms 5724 KB Output is correct
20 Correct 2 ms 5724 KB Output is correct
21 Correct 1 ms 5724 KB Output is correct
22 Correct 1 ms 5720 KB Output is correct
23 Correct 1 ms 5720 KB Output is correct
24 Correct 1 ms 5724 KB Output is correct
25 Correct 1 ms 5724 KB Output is correct
26 Correct 1 ms 5724 KB Output is correct
27 Correct 2 ms 5724 KB Output is correct
28 Correct 2 ms 5724 KB Output is correct
29 Correct 1 ms 5724 KB Output is correct
30 Correct 1 ms 5720 KB Output is correct
31 Correct 1 ms 5720 KB Output is correct
32 Correct 1 ms 5724 KB Output is correct
33 Correct 1 ms 5724 KB Output is correct
34 Correct 2 ms 5724 KB Output is correct
35 Correct 1 ms 5724 KB Output is correct
36 Correct 2 ms 5816 KB Output is correct
37 Correct 2 ms 5724 KB Output is correct
38 Correct 1 ms 5724 KB Output is correct
39 Correct 1 ms 5724 KB Output is correct
40 Correct 1 ms 5724 KB Output is correct
41 Correct 1 ms 5720 KB Output is correct
42 Correct 1 ms 5724 KB Output is correct
43 Correct 1 ms 5724 KB Output is correct
44 Correct 1 ms 5724 KB Output is correct
45 Correct 1 ms 5724 KB Output is correct
46 Correct 1 ms 5724 KB Output is correct
47 Correct 1 ms 5724 KB Output is correct
48 Correct 2 ms 5724 KB Output is correct
49 Correct 2 ms 5816 KB Output is correct
50 Correct 2 ms 5724 KB Output is correct
51 Correct 2 ms 5980 KB Output is correct
52 Correct 2 ms 5980 KB Output is correct
53 Correct 2 ms 6008 KB Output is correct
54 Correct 9 ms 7000 KB Output is correct
55 Correct 9 ms 7000 KB Output is correct
56 Correct 167 ms 17744 KB Output is correct
57 Correct 172 ms 17620 KB Output is correct
58 Correct 153 ms 18000 KB Output is correct
59 Correct 129 ms 17608 KB Output is correct
60 Correct 173 ms 17732 KB Output is correct
61 Correct 181 ms 17984 KB Output is correct
62 Correct 131 ms 17612 KB Output is correct
63 Correct 130 ms 17608 KB Output is correct
64 Correct 132 ms 17508 KB Output is correct
65 Correct 155 ms 17752 KB Output is correct
66 Correct 136 ms 17632 KB Output is correct
67 Correct 130 ms 17608 KB Output is correct
68 Correct 131 ms 17636 KB Output is correct
69 Correct 1 ms 5720 KB Output is correct
70 Correct 2 ms 5720 KB Output is correct
71 Correct 132 ms 17516 KB Output is correct
72 Correct 133 ms 17612 KB Output is correct
73 Correct 131 ms 17612 KB Output is correct
74 Correct 1 ms 5724 KB Output is correct
75 Correct 1 ms 5724 KB Output is correct
76 Correct 1 ms 5724 KB Output is correct
77 Correct 2 ms 5724 KB Output is correct
78 Correct 203 ms 23172 KB Output is correct
79 Correct 85 ms 18440 KB Output is correct
80 Correct 200 ms 23124 KB Output is correct
81 Correct 114 ms 17824 KB Output is correct
82 Correct 203 ms 23120 KB Output is correct
83 Correct 96 ms 20052 KB Output is correct
84 Correct 1 ms 5720 KB Output is correct
85 Correct 1 ms 5724 KB Output is correct
86 Correct 1 ms 5724 KB Output is correct
87 Correct 2 ms 5980 KB Output is correct
88 Correct 2 ms 5980 KB Output is correct
89 Correct 2 ms 6028 KB Output is correct
90 Correct 2 ms 5980 KB Output is correct
91 Correct 2 ms 5980 KB Output is correct
92 Correct 2 ms 5976 KB Output is correct
93 Correct 2 ms 5980 KB Output is correct
94 Correct 2 ms 5980 KB Output is correct
95 Correct 3 ms 5980 KB Output is correct
96 Correct 2 ms 5976 KB Output is correct
97 Correct 2 ms 5980 KB Output is correct
98 Correct 2 ms 5980 KB Output is correct
99 Correct 2 ms 5980 KB Output is correct
100 Correct 2 ms 5980 KB Output is correct
101 Correct 11 ms 7516 KB Output is correct
102 Correct 12 ms 7004 KB Output is correct
103 Correct 247 ms 23136 KB Output is correct
104 Correct 214 ms 23120 KB Output is correct
105 Correct 133 ms 20484 KB Output is correct
106 Correct 175 ms 23112 KB Output is correct
107 Correct 101 ms 18512 KB Output is correct
108 Correct 99 ms 19024 KB Output is correct
109 Correct 116 ms 17512 KB Output is correct
110 Correct 132 ms 17932 KB Output is correct
111 Correct 97 ms 22484 KB Output is correct
112 Correct 122 ms 21840 KB Output is correct
113 Correct 115 ms 18516 KB Output is correct
114 Correct 210 ms 23336 KB Output is correct
115 Correct 210 ms 23124 KB Output is correct