oj.uz

Submission #498291

# Submission time Handle Problem Language Result Execution time Memory
498291 2021-12-24T21:17:11 Z inluminas Arranging Shoes (IOI19_shoes) C++17
100 / 100
 83 ms 21236 KB 
#include"bits/stdc++.h"
#include "shoes.h"
using namespace std;

#define ll long long
#define endl "\n"
#define fastio ios_base::sync_with_stdio(false)
#define inf LLONG_MAX

const int lmt=2e5+10;
int a[lmt],tree[lmt];
vector<int>pos[lmt][2];

void updet(int idx,int n){
	while(idx<=n){
		tree[idx]++;
		idx+=(idx&-idx);
	}
	return;
}

int read(int idx){
	int sum=0;
	while(idx>0){
		sum+=tree[idx];
		idx-=(idx&-idx);
	}
	return sum;
}

int query(int l,int r){
	if(l>r) return 0;
	return read(r)-read(l-1);
}

ll count_swaps(std::vector<int> b) {
	
	int n=b.size();
	for(int i=0;i<n;i++) a[i+1]=b[i];

	for(int i=1;i<=n;i++){
		bool on=1;
		if(a[i]<0) on=0;
		pos[abs(a[i])][on].push_back(i);
	}

	ll ans=0;
	vector<pair<int,int>>v;

	for(int i=1;i<=n;i++){
		for(int j=0;j<2;j++){
			sort(pos[i][j].begin(),pos[i][j].end(),[](int x,int y){
				return x>y;
			});
		}
		while(!pos[i][0].empty()){
			int l=pos[i][0].back(),r=pos[i][1].back();
			if(l>r){
				ans++;
				swap(l,r);
			}
			v.push_back({l,r});
			for(int j=0;j<2;j++) pos[i][j].pop_back();
		}
	}

	sort(v.begin(),v.end());

	for(auto [x,y]:v){
		ans+=query(x,n);
		ans+=query(y,n);
		updet(x,n);
		updet(y,n);
	}

	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9676 KB Output is correct
2 Correct 5 ms 9676 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9676 KB Output is correct
2 Correct 5 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 6 ms 9676 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 8 ms 9676 KB Output is correct
7 Correct 7 ms 9580 KB Output is correct
8 Correct 5 ms 9588 KB Output is correct
9 Correct 5 ms 9676 KB Output is correct
10 Correct 5 ms 9676 KB Output is correct
11 Correct 5 ms 9676 KB Output is correct
12 Correct 5 ms 9676 KB Output is correct
13 Correct 5 ms 9676 KB Output is correct
14 Correct 5 ms 9676 KB Output is correct
15 Correct 5 ms 9676 KB Output is correct
16 Correct 5 ms 9676 KB Output is correct
17 Correct 5 ms 9600 KB Output is correct
18 Correct 5 ms 9636 KB Output is correct
19 Correct 5 ms 9676 KB Output is correct
20 Correct 5 ms 9676 KB Output is correct
21 Correct 5 ms 9676 KB Output is correct
22 Correct 7 ms 9676 KB Output is correct
23 Correct 7 ms 9676 KB Output is correct
24 Correct 8 ms 9676 KB Output is correct
25 Correct 5 ms 9636 KB Output is correct
26 Correct 7 ms 9676 KB Output is correct
27 Correct 5 ms 9676 KB Output is correct
28 Correct 5 ms 9676 KB Output is correct
29 Correct 5 ms 9676 KB Output is correct
30 Correct 5 ms 9676 KB Output is correct
31 Correct 5 ms 9676 KB Output is correct
32 Correct 5 ms 9676 KB Output is correct
33 Correct 5 ms 9676 KB Output is correct
34 Correct 5 ms 9676 KB Output is correct
35 Correct 5 ms 9676 KB Output is correct
36 Correct 6 ms 9676 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9676 KB Output is correct
2 Correct 5 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 5 ms 9620 KB Output is correct
6 Correct 5 ms 9676 KB Output is correct
7 Correct 5 ms 9676 KB Output is correct
8 Correct 5 ms 9676 KB Output is correct
9 Correct 6 ms 9676 KB Output is correct
10 Correct 7 ms 9676 KB Output is correct
11 Correct 5 ms 9676 KB Output is correct
12 Correct 5 ms 9676 KB Output is correct
13 Correct 5 ms 9676 KB Output is correct
14 Correct 5 ms 9676 KB Output is correct
15 Correct 5 ms 9676 KB Output is correct
16 Correct 5 ms 9584 KB Output is correct
17 Correct 5 ms 9676 KB Output is correct
18 Correct 5 ms 9676 KB Output is correct
19 Correct 8 ms 9700 KB Output is correct
20 Correct 9 ms 10300 KB Output is correct
21 Correct 11 ms 10292 KB Output is correct
22 Correct 40 ms 14480 KB Output is correct
23 Correct 38 ms 15680 KB Output is correct
24 Correct 38 ms 15708 KB Output is correct
25 Correct 37 ms 15584 KB Output is correct
26 Correct 57 ms 15688 KB Output is correct
27 Correct 42 ms 15540 KB Output is correct
28 Correct 36 ms 15704 KB Output is correct
29 Correct 36 ms 15704 KB Output is correct
30 Correct 39 ms 15884 KB Output is correct
31 Correct 41 ms 15708 KB Output is correct
32 Correct 41 ms 15696 KB Output is correct
33 Correct 35 ms 15576 KB Output is correct
34 Correct 36 ms 15708 KB Output is correct
35 Correct 5 ms 9676 KB Output is correct
36 Correct 5 ms 9788 KB Output is correct
37 Correct 41 ms 15768 KB Output is correct
38 Correct 40 ms 15692 KB Output is correct
39 Correct 38 ms 15804 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 66 ms 19972 KB Output is correct
6 Correct 51 ms 16368 KB Output is correct
7 Correct 76 ms 21160 KB Output is correct
8 Correct 39 ms 15796 KB Output is correct
9 Correct 73 ms 21184 KB Output is correct
10 Correct 60 ms 18156 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9676 KB Output is correct
2 Correct 5 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 6 ms 9676 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 8 ms 9676 KB Output is correct
7 Correct 7 ms 9580 KB Output is correct
8 Correct 5 ms 9588 KB Output is correct
9 Correct 5 ms 9676 KB Output is correct
10 Correct 5 ms 9676 KB Output is correct
11 Correct 5 ms 9676 KB Output is correct
12 Correct 5 ms 9676 KB Output is correct
13 Correct 5 ms 9676 KB Output is correct
14 Correct 5 ms 9676 KB Output is correct
15 Correct 5 ms 9676 KB Output is correct
16 Correct 5 ms 9676 KB Output is correct
17 Correct 5 ms 9600 KB Output is correct
18 Correct 5 ms 9636 KB Output is correct
19 Correct 5 ms 9676 KB Output is correct
20 Correct 5 ms 9676 KB Output is correct
21 Correct 5 ms 9676 KB Output is correct
22 Correct 7 ms 9676 KB Output is correct
23 Correct 7 ms 9676 KB Output is correct
24 Correct 8 ms 9676 KB Output is correct
25 Correct 5 ms 9636 KB Output is correct
26 Correct 7 ms 9676 KB Output is correct
27 Correct 5 ms 9676 KB Output is correct
28 Correct 5 ms 9676 KB Output is correct
29 Correct 5 ms 9676 KB Output is correct
30 Correct 5 ms 9676 KB Output is correct
31 Correct 5 ms 9676 KB Output is correct
32 Correct 5 ms 9676 KB Output is correct
33 Correct 5 ms 9676 KB Output is correct
34 Correct 5 ms 9676 KB Output is correct
35 Correct 5 ms 9676 KB Output is correct
36 Correct 6 ms 9676 KB Output is correct
37 Correct 5 ms 9676 KB Output is correct
38 Correct 5 ms 9676 KB Output is correct
39 Correct 5 ms 9676 KB Output is correct
40 Correct 5 ms 9640 KB Output is correct
41 Correct 6 ms 9704 KB Output is correct
42 Correct 5 ms 9676 KB Output is correct
43 Correct 8 ms 9804 KB Output is correct
44 Correct 6 ms 9676 KB Output is correct
45 Correct 6 ms 9676 KB Output is correct
46 Correct 6 ms 9796 KB Output is correct
47 Correct 6 ms 9676 KB Output is correct
48 Correct 5 ms 9676 KB Output is correct
49 Correct 5 ms 9676 KB Output is correct
50 Correct 6 ms 9676 KB Output is correct
51 Correct 5 ms 9676 KB Output is correct
52 Correct 5 ms 9804 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9676 KB Output is correct
2 Correct 5 ms 9676 KB Output is correct
3 Correct 5 ms 9676 KB Output is correct
4 Correct 6 ms 9676 KB Output is correct
5 Correct 6 ms 9676 KB Output is correct
6 Correct 8 ms 9676 KB Output is correct
7 Correct 7 ms 9580 KB Output is correct
8 Correct 5 ms 9588 KB Output is correct
9 Correct 5 ms 9676 KB Output is correct
10 Correct 5 ms 9676 KB Output is correct
11 Correct 5 ms 9676 KB Output is correct
12 Correct 5 ms 9676 KB Output is correct
13 Correct 5 ms 9676 KB Output is correct
14 Correct 5 ms 9676 KB Output is correct
15 Correct 5 ms 9676 KB Output is correct
16 Correct 5 ms 9676 KB Output is correct
17 Correct 5 ms 9600 KB Output is correct
18 Correct 5 ms 9636 KB Output is correct
19 Correct 5 ms 9676 KB Output is correct
20 Correct 5 ms 9676 KB Output is correct
21 Correct 5 ms 9676 KB Output is correct
22 Correct 7 ms 9676 KB Output is correct
23 Correct 7 ms 9676 KB Output is correct
24 Correct 8 ms 9676 KB Output is correct
25 Correct 5 ms 9636 KB Output is correct
26 Correct 7 ms 9676 KB Output is correct
27 Correct 5 ms 9676 KB Output is correct
28 Correct 5 ms 9676 KB Output is correct
29 Correct 5 ms 9676 KB Output is correct
30 Correct 5 ms 9676 KB Output is correct
31 Correct 5 ms 9676 KB Output is correct
32 Correct 5 ms 9676 KB Output is correct
33 Correct 5 ms 9676 KB Output is correct
34 Correct 5 ms 9676 KB Output is correct
35 Correct 5 ms 9676 KB Output is correct
36 Correct 6 ms 9676 KB Output is correct
37 Correct 5 ms 9676 KB Output is correct
38 Correct 5 ms 9676 KB Output is correct
39 Correct 5 ms 9620 KB Output is correct
40 Correct 5 ms 9676 KB Output is correct
41 Correct 5 ms 9676 KB Output is correct
42 Correct 5 ms 9676 KB Output is correct
43 Correct 6 ms 9676 KB Output is correct
44 Correct 7 ms 9676 KB Output is correct
45 Correct 5 ms 9676 KB Output is correct
46 Correct 5 ms 9676 KB Output is correct
47 Correct 5 ms 9676 KB Output is correct
48 Correct 5 ms 9676 KB Output is correct
49 Correct 5 ms 9676 KB Output is correct
50 Correct 5 ms 9584 KB Output is correct
51 Correct 5 ms 9676 KB Output is correct
52 Correct 5 ms 9676 KB Output is correct
53 Correct 8 ms 9700 KB Output is correct
54 Correct 9 ms 10300 KB Output is correct
55 Correct 11 ms 10292 KB Output is correct
56 Correct 40 ms 14480 KB Output is correct
57 Correct 38 ms 15680 KB Output is correct
58 Correct 38 ms 15708 KB Output is correct
59 Correct 37 ms 15584 KB Output is correct
60 Correct 57 ms 15688 KB Output is correct
61 Correct 42 ms 15540 KB Output is correct
62 Correct 36 ms 15704 KB Output is correct
63 Correct 36 ms 15704 KB Output is correct
64 Correct 39 ms 15884 KB Output is correct
65 Correct 41 ms 15708 KB Output is correct
66 Correct 41 ms 15696 KB Output is correct
67 Correct 35 ms 15576 KB Output is correct
68 Correct 36 ms 15708 KB Output is correct
69 Correct 5 ms 9676 KB Output is correct
70 Correct 5 ms 9788 KB Output is correct
71 Correct 41 ms 15768 KB Output is correct
72 Correct 40 ms 15692 KB Output is correct
73 Correct 38 ms 15804 KB Output is correct
74 Correct 5 ms 9676 KB Output is correct
75 Correct 6 ms 9676 KB Output is correct
76 Correct 5 ms 9676 KB Output is correct
77 Correct 5 ms 9676 KB Output is correct
78 Correct 66 ms 19972 KB Output is correct
79 Correct 51 ms 16368 KB Output is correct
80 Correct 76 ms 21160 KB Output is correct
81 Correct 39 ms 15796 KB Output is correct
82 Correct 73 ms 21184 KB Output is correct
83 Correct 60 ms 18156 KB Output is correct
84 Correct 5 ms 9676 KB Output is correct
85 Correct 5 ms 9676 KB Output is correct
86 Correct 5 ms 9676 KB Output is correct
87 Correct 5 ms 9640 KB Output is correct
88 Correct 6 ms 9704 KB Output is correct
89 Correct 5 ms 9676 KB Output is correct
90 Correct 8 ms 9804 KB Output is correct
91 Correct 6 ms 9676 KB Output is correct
92 Correct 6 ms 9676 KB Output is correct
93 Correct 6 ms 9796 KB Output is correct
94 Correct 6 ms 9676 KB Output is correct
95 Correct 5 ms 9676 KB Output is correct
96 Correct 5 ms 9676 KB Output is correct
97 Correct 6 ms 9676 KB Output is correct
98 Correct 5 ms 9676 KB Output is correct
99 Correct 5 ms 9804 KB Output is correct
100 Correct 5 ms 9704 KB Output is correct
101 Correct 10 ms 10852 KB Output is correct
102 Correct 10 ms 10444 KB Output is correct
103 Correct 74 ms 21184 KB Output is correct
104 Correct 62 ms 21236 KB Output is correct
105 Correct 62 ms 18552 KB Output is correct
106 Correct 66 ms 21116 KB Output is correct
107 Correct 55 ms 16476 KB Output is correct
108 Correct 65 ms 16984 KB Output is correct
109 Correct 41 ms 16212 KB Output is correct
110 Correct 36 ms 15696 KB Output is correct
111 Correct 66 ms 20536 KB Output is correct
112 Correct 72 ms 19792 KB Output is correct
113 Correct 56 ms 16572 KB Output is correct
114 Correct 83 ms 21208 KB Output is correct
115 Correct 65 ms 21176 KB Output is correct