oj.uz

Submission #494943

# Submission time Handle Problem Language Result Execution time Memory
494943 2021-12-17T16:06:01 Z luka1234 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 79 ms 13472 KB 
#include "shoes.h"
#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
using namespace std;
int maxn=200001;
ll f[200001];
int getsum(int v){
    int ans=0;
    for(int i=v;i>=1;i=(i&(i-1))){
        ans+=f[i];
    }
    return ans;
}
void update(int v,int x){
	for(int i=v;i<=maxn;i=2*i-(i&(i-1))){
        f[i]+=x;
    }
}
long long count_swaps(std::vector<int> s) {
	int n=s.size()/2;
	ll ans=0;
	vector<pair<int,int>> v;
	vector<pair<int,int>> inde[maxn];
	for(int i=0;i<(int)s.size();i++){
		inde[abs(s[i])].push_back({s[i],i});
	}
	for(int i=1;i<=n;i++){
		sort(inde[i].begin(),inde[i].end());
		for(int j=0;j<((int)inde[i].size()/2);j++){
			int l=inde[i][j].ss;
			int r=inde[i][j+((int)inde[i].size()/2)].ss;
			if(l>r){
				swap(l,r);
				ans++;
			}
			v.push_back({l+1,r+1});
		}
	}
	for(int i=1;i<=2*n;i++) 
	   update(i,1);
	sort(v.begin(),v.end());
	for(pair<int,int> i:v){
		ans+=getsum(i.ss-1)-getsum(i.ff);
		update(i.ff,-1);
		update(i.ss,-1);
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4944 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4944 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct
3 Correct 3 ms 4944 KB Output is correct
4 Correct 3 ms 4944 KB Output is correct
5 Correct 3 ms 5024 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4908 KB Output is correct
8 Correct 3 ms 4944 KB Output is correct
9 Correct 3 ms 4912 KB Output is correct
10 Correct 3 ms 4944 KB Output is correct
11 Correct 3 ms 4916 KB Output is correct
12 Correct 3 ms 4944 KB Output is correct
13 Correct 3 ms 5044 KB Output is correct
14 Correct 3 ms 4936 KB Output is correct
15 Correct 3 ms 4944 KB Output is correct
16 Correct 3 ms 4944 KB Output is correct
17 Correct 3 ms 5040 KB Output is correct
18 Correct 3 ms 4944 KB Output is correct
19 Correct 3 ms 4944 KB Output is correct
20 Correct 4 ms 4916 KB Output is correct
21 Correct 3 ms 4920 KB Output is correct
22 Correct 3 ms 4944 KB Output is correct
23 Correct 4 ms 4920 KB Output is correct
24 Correct 3 ms 4944 KB Output is correct
25 Correct 3 ms 4944 KB Output is correct
26 Correct 3 ms 4920 KB Output is correct
27 Correct 3 ms 4944 KB Output is correct
28 Correct 3 ms 4936 KB Output is correct
29 Correct 3 ms 4916 KB Output is correct
30 Correct 3 ms 4944 KB Output is correct
31 Correct 3 ms 5072 KB Output is correct
32 Correct 3 ms 4944 KB Output is correct
33 Correct 3 ms 4944 KB Output is correct
34 Correct 3 ms 4944 KB Output is correct
35 Correct 3 ms 4944 KB Output is correct
36 Correct 3 ms 4944 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4944 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct
3 Correct 3 ms 4944 KB Output is correct
4 Correct 4 ms 4944 KB Output is correct
5 Correct 3 ms 4944 KB Output is correct
6 Correct 3 ms 4944 KB Output is correct
7 Correct 4 ms 4944 KB Output is correct
8 Correct 4 ms 4944 KB Output is correct
9 Correct 3 ms 4944 KB Output is correct
10 Correct 3 ms 4944 KB Output is correct
11 Correct 3 ms 4920 KB Output is correct
12 Correct 3 ms 4916 KB Output is correct
13 Correct 3 ms 4944 KB Output is correct
14 Correct 3 ms 4944 KB Output is correct
15 Correct 3 ms 5048 KB Output is correct
16 Correct 3 ms 4944 KB Output is correct
17 Correct 4 ms 4912 KB Output is correct
18 Correct 4 ms 5072 KB Output is correct
19 Correct 3 ms 5048 KB Output is correct
20 Correct 8 ms 5700 KB Output is correct
21 Correct 9 ms 5692 KB Output is correct
22 Correct 58 ms 12716 KB Output is correct
23 Correct 51 ms 12704 KB Output is correct
24 Correct 61 ms 12740 KB Output is correct
25 Correct 45 ms 12460 KB Output is correct
26 Correct 54 ms 12708 KB Output is correct
27 Correct 51 ms 12564 KB Output is correct
28 Correct 49 ms 12832 KB Output is correct
29 Correct 45 ms 12684 KB Output is correct
30 Correct 47 ms 12704 KB Output is correct
31 Correct 53 ms 12704 KB Output is correct
32 Correct 51 ms 12712 KB Output is correct
33 Correct 45 ms 12472 KB Output is correct
34 Correct 44 ms 12708 KB Output is correct
35 Correct 3 ms 4944 KB Output is correct
36 Correct 3 ms 4944 KB Output is correct
37 Correct 51 ms 12696 KB Output is correct
38 Correct 50 ms 12696 KB Output is correct
39 Correct 47 ms 12708 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5024 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct
3 Correct 3 ms 4944 KB Output is correct
4 Correct 3 ms 5020 KB Output is correct
5 Correct 58 ms 13364 KB Output is correct
6 Correct 53 ms 12732 KB Output is correct
7 Correct 66 ms 13352 KB Output is correct
8 Correct 51 ms 12792 KB Output is correct
9 Correct 66 ms 13352 KB Output is correct
10 Correct 65 ms 13092 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4944 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct
3 Correct 3 ms 4944 KB Output is correct
4 Correct 3 ms 4944 KB Output is correct
5 Correct 3 ms 5024 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4908 KB Output is correct
8 Correct 3 ms 4944 KB Output is correct
9 Correct 3 ms 4912 KB Output is correct
10 Correct 3 ms 4944 KB Output is correct
11 Correct 3 ms 4916 KB Output is correct
12 Correct 3 ms 4944 KB Output is correct
13 Correct 3 ms 5044 KB Output is correct
14 Correct 3 ms 4936 KB Output is correct
15 Correct 3 ms 4944 KB Output is correct
16 Correct 3 ms 4944 KB Output is correct
17 Correct 3 ms 5040 KB Output is correct
18 Correct 3 ms 4944 KB Output is correct
19 Correct 3 ms 4944 KB Output is correct
20 Correct 4 ms 4916 KB Output is correct
21 Correct 3 ms 4920 KB Output is correct
22 Correct 3 ms 4944 KB Output is correct
23 Correct 4 ms 4920 KB Output is correct
24 Correct 3 ms 4944 KB Output is correct
25 Correct 3 ms 4944 KB Output is correct
26 Correct 3 ms 4920 KB Output is correct
27 Correct 3 ms 4944 KB Output is correct
28 Correct 3 ms 4936 KB Output is correct
29 Correct 3 ms 4916 KB Output is correct
30 Correct 3 ms 4944 KB Output is correct
31 Correct 3 ms 5072 KB Output is correct
32 Correct 3 ms 4944 KB Output is correct
33 Correct 3 ms 4944 KB Output is correct
34 Correct 3 ms 4944 KB Output is correct
35 Correct 3 ms 4944 KB Output is correct
36 Correct 3 ms 4944 KB Output is correct
37 Correct 3 ms 5020 KB Output is correct
38 Correct 3 ms 4944 KB Output is correct
39 Correct 3 ms 4944 KB Output is correct
40 Correct 4 ms 4944 KB Output is correct
41 Correct 4 ms 5072 KB Output is correct
42 Correct 4 ms 5108 KB Output is correct
43 Correct 3 ms 5048 KB Output is correct
44 Correct 4 ms 5072 KB Output is correct
45 Correct 3 ms 5072 KB Output is correct
46 Correct 4 ms 5072 KB Output is correct
47 Correct 3 ms 5072 KB Output is correct
48 Correct 3 ms 5072 KB Output is correct
49 Correct 3 ms 5072 KB Output is correct
50 Correct 3 ms 5072 KB Output is correct
51 Correct 3 ms 5072 KB Output is correct
52 Correct 4 ms 5056 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4944 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct
3 Correct 3 ms 4944 KB Output is correct
4 Correct 3 ms 4944 KB Output is correct
5 Correct 3 ms 5024 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4908 KB Output is correct
8 Correct 3 ms 4944 KB Output is correct
9 Correct 3 ms 4912 KB Output is correct
10 Correct 3 ms 4944 KB Output is correct
11 Correct 3 ms 4916 KB Output is correct
12 Correct 3 ms 4944 KB Output is correct
13 Correct 3 ms 5044 KB Output is correct
14 Correct 3 ms 4936 KB Output is correct
15 Correct 3 ms 4944 KB Output is correct
16 Correct 3 ms 4944 KB Output is correct
17 Correct 3 ms 5040 KB Output is correct
18 Correct 3 ms 4944 KB Output is correct
19 Correct 3 ms 4944 KB Output is correct
20 Correct 4 ms 4916 KB Output is correct
21 Correct 3 ms 4920 KB Output is correct
22 Correct 3 ms 4944 KB Output is correct
23 Correct 4 ms 4920 KB Output is correct
24 Correct 3 ms 4944 KB Output is correct
25 Correct 3 ms 4944 KB Output is correct
26 Correct 3 ms 4920 KB Output is correct
27 Correct 3 ms 4944 KB Output is correct
28 Correct 3 ms 4936 KB Output is correct
29 Correct 3 ms 4916 KB Output is correct
30 Correct 3 ms 4944 KB Output is correct
31 Correct 3 ms 5072 KB Output is correct
32 Correct 3 ms 4944 KB Output is correct
33 Correct 3 ms 4944 KB Output is correct
34 Correct 3 ms 4944 KB Output is correct
35 Correct 3 ms 4944 KB Output is correct
36 Correct 3 ms 4944 KB Output is correct
37 Correct 3 ms 4944 KB Output is correct
38 Correct 4 ms 4944 KB Output is correct
39 Correct 3 ms 4944 KB Output is correct
40 Correct 3 ms 4944 KB Output is correct
41 Correct 4 ms 4944 KB Output is correct
42 Correct 4 ms 4944 KB Output is correct
43 Correct 3 ms 4944 KB Output is correct
44 Correct 3 ms 4944 KB Output is correct
45 Correct 3 ms 4920 KB Output is correct
46 Correct 3 ms 4916 KB Output is correct
47 Correct 3 ms 4944 KB Output is correct
48 Correct 3 ms 4944 KB Output is correct
49 Correct 3 ms 5048 KB Output is correct
50 Correct 3 ms 4944 KB Output is correct
51 Correct 4 ms 4912 KB Output is correct
52 Correct 4 ms 5072 KB Output is correct
53 Correct 3 ms 5048 KB Output is correct
54 Correct 8 ms 5700 KB Output is correct
55 Correct 9 ms 5692 KB Output is correct
56 Correct 58 ms 12716 KB Output is correct
57 Correct 51 ms 12704 KB Output is correct
58 Correct 61 ms 12740 KB Output is correct
59 Correct 45 ms 12460 KB Output is correct
60 Correct 54 ms 12708 KB Output is correct
61 Correct 51 ms 12564 KB Output is correct
62 Correct 49 ms 12832 KB Output is correct
63 Correct 45 ms 12684 KB Output is correct
64 Correct 47 ms 12704 KB Output is correct
65 Correct 53 ms 12704 KB Output is correct
66 Correct 51 ms 12712 KB Output is correct
67 Correct 45 ms 12472 KB Output is correct
68 Correct 44 ms 12708 KB Output is correct
69 Correct 3 ms 4944 KB Output is correct
70 Correct 3 ms 4944 KB Output is correct
71 Correct 51 ms 12696 KB Output is correct
72 Correct 50 ms 12696 KB Output is correct
73 Correct 47 ms 12708 KB Output is correct
74 Correct 3 ms 5024 KB Output is correct
75 Correct 3 ms 4944 KB Output is correct
76 Correct 3 ms 4944 KB Output is correct
77 Correct 3 ms 5020 KB Output is correct
78 Correct 58 ms 13364 KB Output is correct
79 Correct 53 ms 12732 KB Output is correct
80 Correct 66 ms 13352 KB Output is correct
81 Correct 51 ms 12792 KB Output is correct
82 Correct 66 ms 13352 KB Output is correct
83 Correct 65 ms 13092 KB Output is correct
84 Correct 3 ms 5020 KB Output is correct
85 Correct 3 ms 4944 KB Output is correct
86 Correct 3 ms 4944 KB Output is correct
87 Correct 4 ms 4944 KB Output is correct
88 Correct 4 ms 5072 KB Output is correct
89 Correct 4 ms 5108 KB Output is correct
90 Correct 3 ms 5048 KB Output is correct
91 Correct 4 ms 5072 KB Output is correct
92 Correct 3 ms 5072 KB Output is correct
93 Correct 4 ms 5072 KB Output is correct
94 Correct 3 ms 5072 KB Output is correct
95 Correct 3 ms 5072 KB Output is correct
96 Correct 3 ms 5072 KB Output is correct
97 Correct 3 ms 5072 KB Output is correct
98 Correct 3 ms 5072 KB Output is correct
99 Correct 4 ms 5056 KB Output is correct
100 Correct 4 ms 5072 KB Output is correct
101 Correct 10 ms 5988 KB Output is correct
102 Correct 9 ms 5864 KB Output is correct
103 Correct 79 ms 13340 KB Output is correct
104 Correct 68 ms 13348 KB Output is correct
105 Correct 72 ms 12848 KB Output is correct
106 Correct 67 ms 13356 KB Output is correct
107 Correct 57 ms 12716 KB Output is correct
108 Correct 54 ms 12760 KB Output is correct
109 Correct 51 ms 12708 KB Output is correct
110 Correct 44 ms 12712 KB Output is correct
111 Correct 62 ms 13452 KB Output is correct
112 Correct 62 ms 13472 KB Output is correct
113 Correct 54 ms 12712 KB Output is correct
114 Correct 58 ms 13336 KB Output is correct
115 Correct 63 ms 13356 KB Output is correct