oj.uz

Submission #210986

# Submission time Handle Problem Language Result Execution time Memory
210986 2020-03-19T04:55:49 Z Seanliu Arranging Shoes (IOI19_shoes) C++14
100 / 100
 789 ms 151968 KB 
#include "shoes.h"
#include <vector>
#include <deque>
#include <algorithm>
#include <map>
#define int long long int
using namespace std;

inline int Abs(int x){
	return x > 0 ? x : -x;
}

const int maxN = 220226;

map<int, deque<int> > poss;

int bit[maxN], visited[maxN], id[maxN];

void modify(int p){
	for(; p < maxN; p += (p & -p)) bit[p]++;
}

int query(int p){
	int r = 0;
	for(; p; p -= (p & -p)) r += bit[p];
	return r;
}

int count_swaps(std::vector<signed> s) {
	int N = s.size();
	int t, cnt = 0;
	for(int i = 0; i < N; i++){
		visited[i] = false;
		poss[s[i]].push_back(i);
	}
	/*
	for(auto [id, p] : poss){
		cout << id << ": ";
		for(int x : p) cout << x << " ";
		cout << endl;
	}
	*/
	for(int i = 0; i < N; i++){
		//cout << "D" << endl;
		if(visited[i]) continue;	
		t = Abs(s[i]);
		id[poss[-t].front()] = cnt++;
		id[poss[t].front()] = cnt++;	
		visited[poss[t].front()] = true;
		visited[poss[-t].front()] = true;
		poss[t].pop_front();
		poss[-t].pop_front();
	}
	//for(int i = 0; i < N; i++) cout << id[i] << " ";
	//cout << endl;
	int ans = 0;
	for(int i = 0; i < N; i++){
		ans += query(id[i] + 1);		
		modify(id[i] + 2);
	}
	return N * (N - 1) / 2 - ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 5 ms 396 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 4 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 360 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 6 ms 640 KB Output is correct
19 Correct 5 ms 512 KB Output is correct
20 Correct 9 ms 1280 KB Output is correct
21 Correct 9 ms 1280 KB Output is correct
22 Correct 46 ms 8952 KB Output is correct
23 Correct 44 ms 8952 KB Output is correct
24 Correct 45 ms 8952 KB Output is correct
25 Correct 42 ms 8696 KB Output is correct
26 Correct 45 ms 8952 KB Output is correct
27 Correct 43 ms 8824 KB Output is correct
28 Correct 41 ms 8936 KB Output is correct
29 Correct 42 ms 8952 KB Output is correct
30 Correct 41 ms 8952 KB Output is correct
31 Correct 50 ms 8952 KB Output is correct
32 Correct 42 ms 8952 KB Output is correct
33 Correct 41 ms 8704 KB Output is correct
34 Correct 43 ms 8952 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 41 ms 8440 KB Output is correct
38 Correct 42 ms 8440 KB Output is correct
39 Correct 45 ms 8440 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 555 ms 151000 KB Output is correct
6 Correct 202 ms 19448 KB Output is correct
7 Correct 703 ms 150848 KB Output is correct
8 Correct 46 ms 8444 KB Output is correct
9 Correct 690 ms 150880 KB Output is correct
10 Correct 492 ms 78968 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 5 ms 396 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 4 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 512 KB Output is correct
40 Correct 5 ms 640 KB Output is correct
41 Correct 7 ms 1792 KB Output is correct
42 Correct 7 ms 1920 KB Output is correct
43 Correct 7 ms 1664 KB Output is correct
44 Correct 7 ms 1536 KB Output is correct
45 Correct 7 ms 1408 KB Output is correct
46 Correct 6 ms 1152 KB Output is correct
47 Correct 12 ms 1024 KB Output is correct
48 Correct 6 ms 896 KB Output is correct
49 Correct 6 ms 768 KB Output is correct
50 Correct 5 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 7 ms 1792 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 5 ms 396 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 4 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 4 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 360 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 4 ms 384 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 5 ms 384 KB Output is correct
42 Correct 4 ms 384 KB Output is correct
43 Correct 5 ms 384 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 5 ms 384 KB Output is correct
46 Correct 5 ms 384 KB Output is correct
47 Correct 4 ms 384 KB Output is correct
48 Correct 5 ms 384 KB Output is correct
49 Correct 5 ms 384 KB Output is correct
50 Correct 5 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 6 ms 640 KB Output is correct
53 Correct 5 ms 512 KB Output is correct
54 Correct 9 ms 1280 KB Output is correct
55 Correct 9 ms 1280 KB Output is correct
56 Correct 46 ms 8952 KB Output is correct
57 Correct 44 ms 8952 KB Output is correct
58 Correct 45 ms 8952 KB Output is correct
59 Correct 42 ms 8696 KB Output is correct
60 Correct 45 ms 8952 KB Output is correct
61 Correct 43 ms 8824 KB Output is correct
62 Correct 41 ms 8936 KB Output is correct
63 Correct 42 ms 8952 KB Output is correct
64 Correct 41 ms 8952 KB Output is correct
65 Correct 50 ms 8952 KB Output is correct
66 Correct 42 ms 8952 KB Output is correct
67 Correct 41 ms 8704 KB Output is correct
68 Correct 43 ms 8952 KB Output is correct
69 Correct 5 ms 384 KB Output is correct
70 Correct 5 ms 384 KB Output is correct
71 Correct 41 ms 8440 KB Output is correct
72 Correct 42 ms 8440 KB Output is correct
73 Correct 45 ms 8440 KB Output is correct
74 Correct 5 ms 384 KB Output is correct
75 Correct 5 ms 384 KB Output is correct
76 Correct 5 ms 384 KB Output is correct
77 Correct 4 ms 384 KB Output is correct
78 Correct 555 ms 151000 KB Output is correct
79 Correct 202 ms 19448 KB Output is correct
80 Correct 703 ms 150848 KB Output is correct
81 Correct 46 ms 8444 KB Output is correct
82 Correct 690 ms 150880 KB Output is correct
83 Correct 492 ms 78968 KB Output is correct
84 Correct 5 ms 384 KB Output is correct
85 Correct 5 ms 384 KB Output is correct
86 Correct 5 ms 512 KB Output is correct
87 Correct 5 ms 640 KB Output is correct
88 Correct 7 ms 1792 KB Output is correct
89 Correct 7 ms 1920 KB Output is correct
90 Correct 7 ms 1664 KB Output is correct
91 Correct 7 ms 1536 KB Output is correct
92 Correct 7 ms 1408 KB Output is correct
93 Correct 6 ms 1152 KB Output is correct
94 Correct 12 ms 1024 KB Output is correct
95 Correct 6 ms 896 KB Output is correct
96 Correct 6 ms 768 KB Output is correct
97 Correct 5 ms 384 KB Output is correct
98 Correct 5 ms 384 KB Output is correct
99 Correct 7 ms 1792 KB Output is correct
100 Correct 7 ms 1792 KB Output is correct
101 Correct 46 ms 14072 KB Output is correct
102 Correct 21 ms 3968 KB Output is correct
103 Correct 789 ms 151876 KB Output is correct
104 Correct 595 ms 151968 KB Output is correct
105 Correct 579 ms 89688 KB Output is correct
106 Correct 607 ms 151928 KB Output is correct
107 Correct 277 ms 23928 KB Output is correct
108 Correct 383 ms 39928 KB Output is correct
109 Correct 43 ms 9472 KB Output is correct
110 Correct 43 ms 9580 KB Output is correct
111 Correct 611 ms 136056 KB Output is correct
112 Correct 618 ms 119928 KB Output is correct
113 Correct 284 ms 25592 KB Output is correct
114 Correct 645 ms 151912 KB Output is correct
115 Correct 605 ms 151848 KB Output is correct