oj.uz

Submission #678650

# Submission time Handle Problem Language Result Execution time Memory
678650 2023-01-06T09:17:33 Z ensonlung Arranging Shoes (IOI19_shoes) C++17
100 / 100
 219 ms 19088 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
int seg[800005],lz[800005],a[200005],alr[200005];
vector <int> v[200005];
void build(int id,int x,int y){
	seg[id]=0; lz[id]=0;
	if (x==y) return;
	int mid=(x+y)/2;
	build(id*2,x,mid);
	build(id*2+1,mid+1,y);
}
void update(int id,int x,int y,int l,int r){
	if (r<x || y<l) return;
	if (l<=x && y<=r){
		seg[id]+=(y-x+1);
		lz[id]++;
		return;
	}
	int mid=(x+y)/2;
	if (lz[id]>0){
		seg[id*2]+=(mid-x+1)*lz[id];
		seg[id*2+1]+=(y-mid)*lz[id];
		lz[id*2]+=lz[id];
		lz[id*2+1]+=lz[id];
		lz[id]=0;
	}
	update(id*2,x,mid,l,r);
	update(id*2+1,mid+1,y,l,r);
	seg[id]=seg[id*2]+seg[id*2+1];
}
int query(int id,int x,int y,int l,int r){
	if (r<x || y<l) return 0;
	if (l<=x && y<=r) return seg[id];
	int mid=(x+y)/2;
	if (lz[id]>0){
		seg[id*2]+=(mid-x+1)*lz[id];
		seg[id*2+1]+=(y-mid)*lz[id];
		lz[id*2]+=lz[id];
		lz[id*2+1]+=lz[id];
		lz[id]=0;
	}
	return (query(id*2,x,mid,l,r)+query(id*2+1,mid+1,y,l,r));
}
long long count_swaps(std::vector<int> s) {
	long long ans=0;
	int n=s.size()/2;
	build(1,1,2*n);
	for (int i=2*n-1;i>=0;i--){
		if (s[i]<0) v[-s[i]].push_back(i+1);
		else v[s[i]+n].push_back(i+1);
		alr[i+1]=0;
	}
	for (int i=0;i<2*n;i++){
		if (alr[i+1]) continue;
		int ptl=query(1,1,2*n,i+1,i+1)+i+1;
		alr[i+1]=1;
		if (s[i]<0){
			int ptr=query(1,1,2*n,v[-s[i]+n].back(),v[-s[i]+n].back());
			ptr+=v[-s[i]+n].back();
			alr[v[-s[i]+n].back()]=1;
			if (ptr==ptl+1){
				v[-s[i]+n].pop_back();
				v[-s[i]].pop_back();
				continue;
			}
			//cout<<s[i]<<" "<<ptl<<" "<<ptr<<" "<<ptr-ptl<<"\n";
			ans+=(ptr-ptl-1);
			update(1,1,2*n,i+1,v[-s[i]+n].back()-1);
			v[-s[i]+n].pop_back();
			v[-s[i]].pop_back();
		}
		else{
			int ptr=query(1,1,2*n,v[s[i]].back(),v[s[i]].back());
			ptr+=v[s[i]].back();
			//cout<<s[i]<<" "<<ptl<<" "<<ptr<<" "<<ptr-ptl<<"\n";
			alr[v[s[i]].back()]=1;
			ans+=(ptr-ptl);
			update(1,1,2*n,i+2,v[s[i]].back()-1);
			v[s[i]].pop_back();
			v[s[i]+n].pop_back();
		}
		//cout<<ans<<"\n";
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4900 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 3 ms 5012 KB Output is correct
13 Correct 3 ms 5008 KB Output is correct
14 Correct 3 ms 5008 KB Output is correct
15 Correct 3 ms 5008 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5004 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 4 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 4 ms 5008 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 5004 KB Output is correct
29 Correct 3 ms 4948 KB Output is correct
30 Correct 4 ms 4948 KB Output is correct
31 Correct 3 ms 5004 KB Output is correct
32 Correct 4 ms 4948 KB Output is correct
33 Correct 4 ms 5012 KB Output is correct
34 Correct 3 ms 5016 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 4 ms 4992 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 5008 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 4 ms 5012 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5008 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 10 ms 6088 KB Output is correct
21 Correct 12 ms 6040 KB Output is correct
22 Correct 76 ms 13608 KB Output is correct
23 Correct 50 ms 13704 KB Output is correct
24 Correct 71 ms 13652 KB Output is correct
25 Correct 79 ms 13584 KB Output is correct
26 Correct 75 ms 13736 KB Output is correct
27 Correct 64 ms 13432 KB Output is correct
28 Correct 78 ms 13700 KB Output is correct
29 Correct 75 ms 13764 KB Output is correct
30 Correct 82 ms 13712 KB Output is correct
31 Correct 73 ms 13576 KB Output is correct
32 Correct 81 ms 13772 KB Output is correct
33 Correct 88 ms 13504 KB Output is correct
34 Correct 79 ms 13708 KB Output is correct
35 Correct 3 ms 5008 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 82 ms 13712 KB Output is correct
38 Correct 82 ms 13712 KB Output is correct
39 Correct 77 ms 13764 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 109 ms 17708 KB Output is correct
6 Correct 98 ms 12924 KB Output is correct
7 Correct 139 ms 17720 KB Output is correct
8 Correct 76 ms 12404 KB Output is correct
9 Correct 112 ms 17724 KB Output is correct
10 Correct 120 ms 14644 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4900 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 3 ms 5012 KB Output is correct
13 Correct 3 ms 5008 KB Output is correct
14 Correct 3 ms 5008 KB Output is correct
15 Correct 3 ms 5008 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5004 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 4 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 4 ms 5008 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 5004 KB Output is correct
29 Correct 3 ms 4948 KB Output is correct
30 Correct 4 ms 4948 KB Output is correct
31 Correct 3 ms 5004 KB Output is correct
32 Correct 4 ms 4948 KB Output is correct
33 Correct 4 ms 5012 KB Output is correct
34 Correct 3 ms 5016 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 3 ms 4948 KB Output is correct
40 Correct 3 ms 5012 KB Output is correct
41 Correct 4 ms 5076 KB Output is correct
42 Correct 4 ms 5076 KB Output is correct
43 Correct 4 ms 5016 KB Output is correct
44 Correct 5 ms 5012 KB Output is correct
45 Correct 4 ms 5076 KB Output is correct
46 Correct 5 ms 5076 KB Output is correct
47 Correct 4 ms 5076 KB Output is correct
48 Correct 5 ms 5076 KB Output is correct
49 Correct 4 ms 5076 KB Output is correct
50 Correct 4 ms 5016 KB Output is correct
51 Correct 4 ms 5044 KB Output is correct
52 Correct 5 ms 5144 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4900 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 4 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 3 ms 5012 KB Output is correct
13 Correct 3 ms 5008 KB Output is correct
14 Correct 3 ms 5008 KB Output is correct
15 Correct 3 ms 5008 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 5004 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 2 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 4 ms 4948 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 4 ms 5008 KB Output is correct
26 Correct 3 ms 4948 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 5004 KB Output is correct
29 Correct 3 ms 4948 KB Output is correct
30 Correct 4 ms 4948 KB Output is correct
31 Correct 3 ms 5004 KB Output is correct
32 Correct 4 ms 4948 KB Output is correct
33 Correct 4 ms 5012 KB Output is correct
34 Correct 3 ms 5016 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 2 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 4 ms 4992 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 3 ms 4948 KB Output is correct
42 Correct 3 ms 4948 KB Output is correct
43 Correct 3 ms 5008 KB Output is correct
44 Correct 2 ms 4948 KB Output is correct
45 Correct 4 ms 5012 KB Output is correct
46 Correct 3 ms 4948 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 4 ms 4948 KB Output is correct
49 Correct 3 ms 4948 KB Output is correct
50 Correct 3 ms 4948 KB Output is correct
51 Correct 3 ms 5008 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 10 ms 6088 KB Output is correct
55 Correct 12 ms 6040 KB Output is correct
56 Correct 76 ms 13608 KB Output is correct
57 Correct 50 ms 13704 KB Output is correct
58 Correct 71 ms 13652 KB Output is correct
59 Correct 79 ms 13584 KB Output is correct
60 Correct 75 ms 13736 KB Output is correct
61 Correct 64 ms 13432 KB Output is correct
62 Correct 78 ms 13700 KB Output is correct
63 Correct 75 ms 13764 KB Output is correct
64 Correct 82 ms 13712 KB Output is correct
65 Correct 73 ms 13576 KB Output is correct
66 Correct 81 ms 13772 KB Output is correct
67 Correct 88 ms 13504 KB Output is correct
68 Correct 79 ms 13708 KB Output is correct
69 Correct 3 ms 5008 KB Output is correct
70 Correct 3 ms 4948 KB Output is correct
71 Correct 82 ms 13712 KB Output is correct
72 Correct 82 ms 13712 KB Output is correct
73 Correct 77 ms 13764 KB Output is correct
74 Correct 2 ms 4948 KB Output is correct
75 Correct 3 ms 4948 KB Output is correct
76 Correct 3 ms 4948 KB Output is correct
77 Correct 4 ms 4948 KB Output is correct
78 Correct 109 ms 17708 KB Output is correct
79 Correct 98 ms 12924 KB Output is correct
80 Correct 139 ms 17720 KB Output is correct
81 Correct 76 ms 12404 KB Output is correct
82 Correct 112 ms 17724 KB Output is correct
83 Correct 120 ms 14644 KB Output is correct
84 Correct 3 ms 4948 KB Output is correct
85 Correct 3 ms 4948 KB Output is correct
86 Correct 3 ms 4948 KB Output is correct
87 Correct 3 ms 5012 KB Output is correct
88 Correct 4 ms 5076 KB Output is correct
89 Correct 4 ms 5076 KB Output is correct
90 Correct 4 ms 5016 KB Output is correct
91 Correct 5 ms 5012 KB Output is correct
92 Correct 4 ms 5076 KB Output is correct
93 Correct 5 ms 5076 KB Output is correct
94 Correct 4 ms 5076 KB Output is correct
95 Correct 5 ms 5076 KB Output is correct
96 Correct 4 ms 5076 KB Output is correct
97 Correct 4 ms 5016 KB Output is correct
98 Correct 4 ms 5044 KB Output is correct
99 Correct 5 ms 5144 KB Output is correct
100 Correct 3 ms 5076 KB Output is correct
101 Correct 13 ms 6356 KB Output is correct
102 Correct 14 ms 6104 KB Output is correct
103 Correct 219 ms 18972 KB Output is correct
104 Correct 112 ms 18928 KB Output is correct
105 Correct 117 ms 16380 KB Output is correct
106 Correct 103 ms 18972 KB Output is correct
107 Correct 92 ms 14288 KB Output is correct
108 Correct 108 ms 14728 KB Output is correct
109 Correct 78 ms 13960 KB Output is correct
110 Correct 81 ms 13772 KB Output is correct
111 Correct 100 ms 18276 KB Output is correct
112 Correct 157 ms 17496 KB Output is correct
113 Correct 125 ms 14292 KB Output is correct
114 Correct 104 ms 19088 KB Output is correct
115 Correct 99 ms 18956 KB Output is correct