oj.uz

Submission #143839

# Submission time Handle Problem Language Result Execution time Memory
143839 2019-08-15T10:03:10 Z sasa Arranging Shoes (IOI19_shoes) C++14
100 / 100
 129 ms 21232 KB 
#include "shoes.h"
#include <iostream>
#include <algorithm>
#include <fstream>
#include <vector>
#include <deque>
#include <assert.h>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <stdio.h>
#include <string.h>
#include <utility>
#include <math.h>
#include <bitset>
#include <iomanip>
#include <complex>
using namespace std;
//#define int long long
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef long double ld;
typedef long long ll;
#define X first
#define Y second
#define all(o) o.begin(), o.end()
#define endl '\n'
#define IOS ios::sync_with_stdio(0), cin.tie(0)
const int maxn = 2e5 + 10;
vi lef[maxn], rig[maxn];
int a[maxn], b[maxn], fen[maxn];
void add(int p,int val){
	for(p++; p<maxn; p+=p&-p)
		fen[p] += val;
}
int get(int p){
	int res = 0;
	for(; p; p-=p&-p)
		res += fen[p];
	return res;
}
long long count_swaps(vi s) {
	int n = s.size() / 2;
	for(int i=0; i<2*n; i++)
		a[i] = s[i];
	
	for(int i=0; i<2*n; i++){
		int sz = abs(a[i]);
		if(a[i] < 0)
			lef[sz].push_back(i);
		else
			rig[sz].push_back(i);
	}
	vector<pair<int,pii> > tot;
	for(int i=1; i<=n; i++){
		for(int j=0; j<lef[i].size(); j++){
			tot.push_back({ lef[i][j] + rig[i][j], {i, j} });
		}
	}
	sort(all(tot));
	ll ans = 0;
	int cur = 0;
	for(auto t : tot){
		int i = t.Y.X;
		int j = t.Y.Y;
		int l = lef[i][j], r = rig[i][j];
		b[l] = cur;
		b[r] = cur + 1;
		cur += 2;
	}
	for(int i=2*n-1; i>=0; i--){
		int x = b[i];
		ans += get(x);
		add(x, 1);
	}
	return ans;
}/*
int main(){
	int n;
	cin >> n;
	vi s;
	for(int i=0; i<2*n; i++){
		int x;
		cin >> x;
		s.push_back(x);
	}
	cout << count_swaps(s) << endl;
}*/

Compilation message

shoes.cpp: In function 'long long int count_swaps(vi)':
shoes.cpp:57:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<lef[i].size(); j++){
                ~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9848 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 11 ms 9720 KB Output is correct
14 Correct 11 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9716 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 10 ms 9720 KB Output is correct
24 Correct 11 ms 9720 KB Output is correct
25 Correct 10 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 10 ms 9720 KB Output is correct
28 Correct 10 ms 9848 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9712 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9768 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9724 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9720 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 10 ms 9720 KB Output is correct
10 Correct 10 ms 9768 KB Output is correct
11 Correct 11 ms 9788 KB Output is correct
12 Correct 10 ms 9692 KB Output is correct
13 Correct 10 ms 9720 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 13 ms 9848 KB Output is correct
19 Correct 10 ms 9848 KB Output is correct
20 Correct 15 ms 10564 KB Output is correct
21 Correct 17 ms 10556 KB Output is correct
22 Correct 59 ms 15888 KB Output is correct
23 Correct 56 ms 15908 KB Output is correct
24 Correct 55 ms 16004 KB Output is correct
25 Correct 50 ms 16020 KB Output is correct
26 Correct 54 ms 15908 KB Output is correct
27 Correct 49 ms 15944 KB Output is correct
28 Correct 51 ms 15916 KB Output is correct
29 Correct 50 ms 15952 KB Output is correct
30 Correct 53 ms 15972 KB Output is correct
31 Correct 55 ms 15932 KB Output is correct
32 Correct 50 ms 15976 KB Output is correct
33 Correct 50 ms 15988 KB Output is correct
34 Correct 51 ms 15944 KB Output is correct
35 Correct 10 ms 9724 KB Output is correct
36 Correct 10 ms 9728 KB Output is correct
37 Correct 51 ms 16016 KB Output is correct
38 Correct 55 ms 15912 KB Output is correct
39 Correct 56 ms 15904 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9696 KB Output is correct
2 Correct 12 ms 9692 KB Output is correct
3 Correct 11 ms 9724 KB Output is correct
4 Correct 11 ms 9784 KB Output is correct
5 Correct 107 ms 21180 KB Output is correct
6 Correct 82 ms 16364 KB Output is correct
7 Correct 105 ms 21232 KB Output is correct
8 Correct 58 ms 15824 KB Output is correct
9 Correct 107 ms 21164 KB Output is correct
10 Correct 106 ms 18092 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9848 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 11 ms 9720 KB Output is correct
14 Correct 11 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9716 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 10 ms 9720 KB Output is correct
24 Correct 11 ms 9720 KB Output is correct
25 Correct 10 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 10 ms 9720 KB Output is correct
28 Correct 10 ms 9848 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9712 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9768 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 11 ms 9720 KB Output is correct
38 Correct 11 ms 9720 KB Output is correct
39 Correct 10 ms 9720 KB Output is correct
40 Correct 10 ms 9780 KB Output is correct
41 Correct 11 ms 9848 KB Output is correct
42 Correct 11 ms 9848 KB Output is correct
43 Correct 13 ms 9848 KB Output is correct
44 Correct 11 ms 9848 KB Output is correct
45 Correct 11 ms 9848 KB Output is correct
46 Correct 11 ms 9848 KB Output is correct
47 Correct 11 ms 9760 KB Output is correct
48 Correct 11 ms 9848 KB Output is correct
49 Correct 11 ms 9848 KB Output is correct
50 Correct 11 ms 9848 KB Output is correct
51 Correct 11 ms 9848 KB Output is correct
52 Correct 11 ms 9848 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9848 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9720 KB Output is correct
13 Correct 11 ms 9720 KB Output is correct
14 Correct 11 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9716 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 10 ms 9720 KB Output is correct
23 Correct 10 ms 9720 KB Output is correct
24 Correct 11 ms 9720 KB Output is correct
25 Correct 10 ms 9720 KB Output is correct
26 Correct 10 ms 9720 KB Output is correct
27 Correct 10 ms 9720 KB Output is correct
28 Correct 10 ms 9848 KB Output is correct
29 Correct 10 ms 9720 KB Output is correct
30 Correct 10 ms 9720 KB Output is correct
31 Correct 10 ms 9712 KB Output is correct
32 Correct 10 ms 9720 KB Output is correct
33 Correct 10 ms 9720 KB Output is correct
34 Correct 10 ms 9720 KB Output is correct
35 Correct 10 ms 9768 KB Output is correct
36 Correct 10 ms 9720 KB Output is correct
37 Correct 10 ms 9720 KB Output is correct
38 Correct 10 ms 9724 KB Output is correct
39 Correct 10 ms 9720 KB Output is correct
40 Correct 10 ms 9720 KB Output is correct
41 Correct 10 ms 9720 KB Output is correct
42 Correct 10 ms 9720 KB Output is correct
43 Correct 10 ms 9720 KB Output is correct
44 Correct 10 ms 9768 KB Output is correct
45 Correct 11 ms 9788 KB Output is correct
46 Correct 10 ms 9692 KB Output is correct
47 Correct 10 ms 9720 KB Output is correct
48 Correct 10 ms 9720 KB Output is correct
49 Correct 10 ms 9720 KB Output is correct
50 Correct 10 ms 9720 KB Output is correct
51 Correct 10 ms 9720 KB Output is correct
52 Correct 13 ms 9848 KB Output is correct
53 Correct 10 ms 9848 KB Output is correct
54 Correct 15 ms 10564 KB Output is correct
55 Correct 17 ms 10556 KB Output is correct
56 Correct 59 ms 15888 KB Output is correct
57 Correct 56 ms 15908 KB Output is correct
58 Correct 55 ms 16004 KB Output is correct
59 Correct 50 ms 16020 KB Output is correct
60 Correct 54 ms 15908 KB Output is correct
61 Correct 49 ms 15944 KB Output is correct
62 Correct 51 ms 15916 KB Output is correct
63 Correct 50 ms 15952 KB Output is correct
64 Correct 53 ms 15972 KB Output is correct
65 Correct 55 ms 15932 KB Output is correct
66 Correct 50 ms 15976 KB Output is correct
67 Correct 50 ms 15988 KB Output is correct
68 Correct 51 ms 15944 KB Output is correct
69 Correct 10 ms 9724 KB Output is correct
70 Correct 10 ms 9728 KB Output is correct
71 Correct 51 ms 16016 KB Output is correct
72 Correct 55 ms 15912 KB Output is correct
73 Correct 56 ms 15904 KB Output is correct
74 Correct 10 ms 9696 KB Output is correct
75 Correct 12 ms 9692 KB Output is correct
76 Correct 11 ms 9724 KB Output is correct
77 Correct 11 ms 9784 KB Output is correct
78 Correct 107 ms 21180 KB Output is correct
79 Correct 82 ms 16364 KB Output is correct
80 Correct 105 ms 21232 KB Output is correct
81 Correct 58 ms 15824 KB Output is correct
82 Correct 107 ms 21164 KB Output is correct
83 Correct 106 ms 18092 KB Output is correct
84 Correct 11 ms 9720 KB Output is correct
85 Correct 11 ms 9720 KB Output is correct
86 Correct 10 ms 9720 KB Output is correct
87 Correct 10 ms 9780 KB Output is correct
88 Correct 11 ms 9848 KB Output is correct
89 Correct 11 ms 9848 KB Output is correct
90 Correct 13 ms 9848 KB Output is correct
91 Correct 11 ms 9848 KB Output is correct
92 Correct 11 ms 9848 KB Output is correct
93 Correct 11 ms 9848 KB Output is correct
94 Correct 11 ms 9760 KB Output is correct
95 Correct 11 ms 9848 KB Output is correct
96 Correct 11 ms 9848 KB Output is correct
97 Correct 11 ms 9848 KB Output is correct
98 Correct 11 ms 9848 KB Output is correct
99 Correct 11 ms 9848 KB Output is correct
100 Correct 11 ms 9848 KB Output is correct
101 Correct 19 ms 11036 KB Output is correct
102 Correct 18 ms 10552 KB Output is correct
103 Correct 129 ms 21228 KB Output is correct
104 Correct 117 ms 21220 KB Output is correct
105 Correct 126 ms 18528 KB Output is correct
106 Correct 103 ms 21168 KB Output is correct
107 Correct 91 ms 16580 KB Output is correct
108 Correct 92 ms 16872 KB Output is correct
109 Correct 60 ms 16076 KB Output is correct
110 Correct 51 ms 16024 KB Output is correct
111 Correct 105 ms 20524 KB Output is correct
112 Correct 126 ms 19816 KB Output is correct
113 Correct 90 ms 16556 KB Output is correct
114 Correct 100 ms 21200 KB Output is correct
115 Correct 105 ms 21164 KB Output is correct