oj.uz

Submission #152335

# Submission time Handle Problem Language Result Execution time Memory
152335 2019-09-07T15:22:09 Z groeneprof Arranging Shoes (IOI19_shoes) C++14
100 / 100
 116 ms 14992 KB 
#include <bits/stdc++.h>
//#define int long long
#define P(x) do {if(debug) cout << x << endl;} while(false)
#define H(x) P(#x << ": " << x)
#define FR(i, a, b) for(int i = (a); i < (b); ++i)
#define F(i, n) FR(i, 0, n)
#define DR(i, a, b) for(int i = (b); i --> (a);)
#define D(i, n) DR(i, 0, n)
#define S(s) (int)(s).size()
#define ALL(x) (x).begin(), (x).end()
#define MI(x, a) (x) = min(x, a)
#define MA(x, a) (x) = max(x, a)
#define V vector
#define pb push_back
#define mp make_pair
using namespace std;
const bool debug = 0;
//const int inf = 1e18;

struct ftree{
	vector<int> tree;
	int n;
	ftree(int _n){
		tree.resize(_n+1, 0);
		n = _n;
	}
	int query(int i){
		int res = 0;
		for(int j = i; j>0; j-=(j&-j)){
			res+=tree[j];
		}
		//res+=ftree[0];µ
		return res;
	}

	void update(int i, int change){
		//int change = v-(query(i+1)+query(i));
		for(int j = i+1; j<tree.size(); j+=(j&-j)){
			tree[j]+=change;
		}
	}
};

long long count_swaps(vector<int> S){
	int n = S.size()/2;
	//cout<<"AAA";
	vector<vector<int> > pos(2*n+5);
	for(int i = 2*n-1; i>=0; i--){
		H(S[i]);
		H(S[i]+n);
		pos[S[i]+n].push_back(i);

	}
	ftree ft(2*n);
	vector<bool> vis(2*n, 0);
	long long cnt = 0;
	//cout<<"blib"<<endl;
	for(int i = 0; i < 2*n; i++){
		if(vis[i]) continue;
		int x = pos[n-S[i]].back();
		pos[n-S[i]].pop_back();
		pos[S[i]+n].pop_back();
		H(i);
		H(x);
		H( x - i - ((S[i]<0)?1:0));
		cnt += x - i - ((S[i]<0)?1:0);
		H(cnt);
		cnt -= ft.query(x) - ft.query(i+1);
		H(cnt);
		ft.update(x, 1);
		vis[x]=true;
	}
	return cnt;
}

Compilation message

shoes.cpp: In member function 'void ftree::update(int, int)':
shoes.cpp:38:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j = i+1; j<tree.size(); j+=(j&-j)){
                    ~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 252 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 3 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 300 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 424 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 252 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 6 ms 1144 KB Output is correct
21 Correct 6 ms 1144 KB Output is correct
22 Correct 42 ms 8448 KB Output is correct
23 Correct 38 ms 8428 KB Output is correct
24 Correct 44 ms 8340 KB Output is correct
25 Correct 38 ms 8316 KB Output is correct
26 Correct 43 ms 9580 KB Output is correct
27 Correct 39 ms 9452 KB Output is correct
28 Correct 39 ms 9584 KB Output is correct
29 Correct 40 ms 9584 KB Output is correct
30 Correct 39 ms 9580 KB Output is correct
31 Correct 43 ms 9640 KB Output is correct
32 Correct 39 ms 9584 KB Output is correct
33 Correct 39 ms 9460 KB Output is correct
34 Correct 40 ms 9584 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 44 ms 9604 KB Output is correct
38 Correct 42 ms 9584 KB Output is correct
39 Correct 43 ms 9564 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 87 ms 13692 KB Output is correct
6 Correct 61 ms 10104 KB Output is correct
7 Correct 91 ms 14968 KB Output is correct
8 Correct 43 ms 9520 KB Output is correct
9 Correct 86 ms 14840 KB Output is correct
10 Correct 85 ms 11876 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 252 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 3 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 300 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 424 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 252 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 256 KB Output is correct
39 Correct 2 ms 256 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 376 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 3 ms 504 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 3 ms 376 KB Output is correct
46 Correct 3 ms 376 KB Output is correct
47 Correct 3 ms 376 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 504 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 252 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 3 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 300 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 424 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 252 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 256 KB Output is correct
40 Correct 2 ms 256 KB Output is correct
41 Correct 2 ms 256 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 256 KB Output is correct
44 Correct 2 ms 256 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 256 KB Output is correct
47 Correct 2 ms 256 KB Output is correct
48 Correct 2 ms 256 KB Output is correct
49 Correct 2 ms 256 KB Output is correct
50 Correct 2 ms 256 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 3 ms 504 KB Output is correct
54 Correct 6 ms 1144 KB Output is correct
55 Correct 6 ms 1144 KB Output is correct
56 Correct 42 ms 8448 KB Output is correct
57 Correct 38 ms 8428 KB Output is correct
58 Correct 44 ms 8340 KB Output is correct
59 Correct 38 ms 8316 KB Output is correct
60 Correct 43 ms 9580 KB Output is correct
61 Correct 39 ms 9452 KB Output is correct
62 Correct 39 ms 9584 KB Output is correct
63 Correct 40 ms 9584 KB Output is correct
64 Correct 39 ms 9580 KB Output is correct
65 Correct 43 ms 9640 KB Output is correct
66 Correct 39 ms 9584 KB Output is correct
67 Correct 39 ms 9460 KB Output is correct
68 Correct 40 ms 9584 KB Output is correct
69 Correct 2 ms 256 KB Output is correct
70 Correct 2 ms 376 KB Output is correct
71 Correct 44 ms 9604 KB Output is correct
72 Correct 42 ms 9584 KB Output is correct
73 Correct 43 ms 9564 KB Output is correct
74 Correct 2 ms 256 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 256 KB Output is correct
78 Correct 87 ms 13692 KB Output is correct
79 Correct 61 ms 10104 KB Output is correct
80 Correct 91 ms 14968 KB Output is correct
81 Correct 43 ms 9520 KB Output is correct
82 Correct 86 ms 14840 KB Output is correct
83 Correct 85 ms 11876 KB Output is correct
84 Correct 2 ms 256 KB Output is correct
85 Correct 2 ms 256 KB Output is correct
86 Correct 2 ms 256 KB Output is correct
87 Correct 2 ms 376 KB Output is correct
88 Correct 3 ms 376 KB Output is correct
89 Correct 3 ms 504 KB Output is correct
90 Correct 3 ms 504 KB Output is correct
91 Correct 2 ms 376 KB Output is correct
92 Correct 3 ms 376 KB Output is correct
93 Correct 3 ms 376 KB Output is correct
94 Correct 3 ms 376 KB Output is correct
95 Correct 3 ms 376 KB Output is correct
96 Correct 3 ms 376 KB Output is correct
97 Correct 3 ms 376 KB Output is correct
98 Correct 3 ms 376 KB Output is correct
99 Correct 3 ms 504 KB Output is correct
100 Correct 3 ms 396 KB Output is correct
101 Correct 9 ms 1656 KB Output is correct
102 Correct 8 ms 1272 KB Output is correct
103 Correct 116 ms 14972 KB Output is correct
104 Correct 90 ms 14968 KB Output is correct
105 Correct 105 ms 12196 KB Output is correct
106 Correct 90 ms 14968 KB Output is correct
107 Correct 65 ms 10232 KB Output is correct
108 Correct 75 ms 10612 KB Output is correct
109 Correct 42 ms 9776 KB Output is correct
110 Correct 40 ms 9580 KB Output is correct
111 Correct 88 ms 14144 KB Output is correct
112 Correct 106 ms 13560 KB Output is correct
113 Correct 70 ms 10204 KB Output is correct
114 Correct 101 ms 14872 KB Output is correct
115 Correct 112 ms 14992 KB Output is correct