oj.uz

Submission #294960

# Submission time Handle Problem Language Result Execution time Memory
294960 2020-09-09T11:09:14 Z theStaticMind Arranging Shoes (IOI19_shoes) C++14
100 / 100
 133 ms 23568 KB 
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;

struct Fenwick{
	vector<int> bit;

	Fenwick(){
		bit = vector<int> (1e6, 0);
	}

	void modify(int j, int v){
		j++;
		for(;j<1e6;j+=j&-j) bit[j] += v;
	}
	int query(int j){
		j++;
		int v = 0;
		for(;j;j-=j&-j) v += bit[j];
		return v;
	}
	int query(int a, int b){
		if(b < a) swap(a, b);
		return query(b) - query(a);
	}
} F;

long long count_swaps(std::vector<int> s) {
	int n = s.size();
	vector<int> A[n + 1], B[n + 1];

	for(int i = 0; i < n; i++){
		if(s[i] < 0) A[-s[i]].push_back(i);
		else B[s[i]].push_back(i);
	}

	vector<pair<int, int> > Q;

	long long cnt = 0;
	for(int i = 0; i <= n; i++){
		for(int j = 0; j < A[i].size(); j++){
			if(B[i][j] < A[i][j]){
				cnt++;
				swap(A[i][j], B[i][j]);
			}
			Q.push_back({A[i][j], B[i][j]});
		}
	}

	sort(Q.begin(), Q.end(), [&](pair<int, int> a, pair<int, int> b){
		return a.second < b.second;
	});

	for(auto p : Q){
		int l = p.first;
		int r = p.second;
		cnt += F.query(l, r);
		F.modify(l, 1);
		F.modify(r, 1);
	}

	return cnt;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |   for(int j = 0; j < A[i].size(); j++){
      |                  ~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4224 KB Output is correct
2 Correct 3 ms 4224 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4224 KB Output is correct
2 Correct 3 ms 4224 KB Output is correct
3 Correct 3 ms 4224 KB Output is correct
4 Correct 3 ms 4224 KB Output is correct
5 Correct 4 ms 4224 KB Output is correct
6 Correct 3 ms 4224 KB Output is correct
7 Correct 3 ms 4224 KB Output is correct
8 Correct 3 ms 4224 KB Output is correct
9 Correct 3 ms 4224 KB Output is correct
10 Correct 3 ms 4224 KB Output is correct
11 Correct 3 ms 4224 KB Output is correct
12 Correct 3 ms 4224 KB Output is correct
13 Correct 3 ms 4224 KB Output is correct
14 Correct 3 ms 4224 KB Output is correct
15 Correct 4 ms 4224 KB Output is correct
16 Correct 3 ms 4224 KB Output is correct
17 Correct 4 ms 4224 KB Output is correct
18 Correct 3 ms 4224 KB Output is correct
19 Correct 4 ms 4224 KB Output is correct
20 Correct 3 ms 4224 KB Output is correct
21 Correct 4 ms 4224 KB Output is correct
22 Correct 3 ms 4224 KB Output is correct
23 Correct 3 ms 4224 KB Output is correct
24 Correct 3 ms 4224 KB Output is correct
25 Correct 3 ms 4224 KB Output is correct
26 Correct 3 ms 4224 KB Output is correct
27 Correct 4 ms 4224 KB Output is correct
28 Correct 4 ms 4224 KB Output is correct
29 Correct 3 ms 4224 KB Output is correct
30 Correct 3 ms 4224 KB Output is correct
31 Correct 3 ms 4224 KB Output is correct
32 Correct 3 ms 4224 KB Output is correct
33 Correct 3 ms 4224 KB Output is correct
34 Correct 3 ms 4224 KB Output is correct
35 Correct 3 ms 4224 KB Output is correct
36 Correct 4 ms 4300 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4224 KB Output is correct
2 Correct 3 ms 4224 KB Output is correct
3 Correct 3 ms 4224 KB Output is correct
4 Correct 4 ms 4224 KB Output is correct
5 Correct 4 ms 4224 KB Output is correct
6 Correct 3 ms 4224 KB Output is correct
7 Correct 3 ms 4300 KB Output is correct
8 Correct 3 ms 4224 KB Output is correct
9 Correct 4 ms 4352 KB Output is correct
10 Correct 3 ms 4224 KB Output is correct
11 Correct 3 ms 4224 KB Output is correct
12 Correct 3 ms 4224 KB Output is correct
13 Correct 3 ms 4224 KB Output is correct
14 Correct 4 ms 4224 KB Output is correct
15 Correct 3 ms 4224 KB Output is correct
16 Correct 4 ms 4428 KB Output is correct
17 Correct 3 ms 4224 KB Output is correct
18 Correct 3 ms 4352 KB Output is correct
19 Correct 4 ms 4352 KB Output is correct
20 Correct 8 ms 5760 KB Output is correct
21 Correct 8 ms 5760 KB Output is correct
22 Correct 55 ms 17560 KB Output is correct
23 Correct 55 ms 18156 KB Output is correct
24 Correct 57 ms 18028 KB Output is correct
25 Correct 51 ms 18032 KB Output is correct
26 Correct 65 ms 18004 KB Output is correct
27 Correct 54 ms 18028 KB Output is correct
28 Correct 53 ms 18032 KB Output is correct
29 Correct 54 ms 18032 KB Output is correct
30 Correct 54 ms 18032 KB Output is correct
31 Correct 54 ms 18052 KB Output is correct
32 Correct 62 ms 18032 KB Output is correct
33 Correct 55 ms 18032 KB Output is correct
34 Correct 64 ms 18104 KB Output is correct
35 Correct 3 ms 4224 KB Output is correct
36 Correct 4 ms 4224 KB Output is correct
37 Correct 52 ms 18032 KB Output is correct
38 Correct 62 ms 17988 KB Output is correct
39 Correct 54 ms 18032 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4224 KB Output is correct
2 Correct 3 ms 4224 KB Output is correct
3 Correct 4 ms 4204 KB Output is correct
4 Correct 4 ms 4224 KB Output is correct
5 Correct 104 ms 23028 KB Output is correct
6 Correct 73 ms 18672 KB Output is correct
7 Correct 102 ms 23568 KB Output is correct
8 Correct 74 ms 18180 KB Output is correct
9 Correct 118 ms 23500 KB Output is correct
10 Correct 103 ms 20436 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4224 KB Output is correct
2 Correct 3 ms 4224 KB Output is correct
3 Correct 3 ms 4224 KB Output is correct
4 Correct 3 ms 4224 KB Output is correct
5 Correct 4 ms 4224 KB Output is correct
6 Correct 3 ms 4224 KB Output is correct
7 Correct 3 ms 4224 KB Output is correct
8 Correct 3 ms 4224 KB Output is correct
9 Correct 3 ms 4224 KB Output is correct
10 Correct 3 ms 4224 KB Output is correct
11 Correct 3 ms 4224 KB Output is correct
12 Correct 3 ms 4224 KB Output is correct
13 Correct 3 ms 4224 KB Output is correct
14 Correct 3 ms 4224 KB Output is correct
15 Correct 4 ms 4224 KB Output is correct
16 Correct 3 ms 4224 KB Output is correct
17 Correct 4 ms 4224 KB Output is correct
18 Correct 3 ms 4224 KB Output is correct
19 Correct 4 ms 4224 KB Output is correct
20 Correct 3 ms 4224 KB Output is correct
21 Correct 4 ms 4224 KB Output is correct
22 Correct 3 ms 4224 KB Output is correct
23 Correct 3 ms 4224 KB Output is correct
24 Correct 3 ms 4224 KB Output is correct
25 Correct 3 ms 4224 KB Output is correct
26 Correct 3 ms 4224 KB Output is correct
27 Correct 4 ms 4224 KB Output is correct
28 Correct 4 ms 4224 KB Output is correct
29 Correct 3 ms 4224 KB Output is correct
30 Correct 3 ms 4224 KB Output is correct
31 Correct 3 ms 4224 KB Output is correct
32 Correct 3 ms 4224 KB Output is correct
33 Correct 3 ms 4224 KB Output is correct
34 Correct 3 ms 4224 KB Output is correct
35 Correct 3 ms 4224 KB Output is correct
36 Correct 4 ms 4300 KB Output is correct
37 Correct 3 ms 4224 KB Output is correct
38 Correct 3 ms 4296 KB Output is correct
39 Correct 3 ms 4224 KB Output is correct
40 Correct 3 ms 4224 KB Output is correct
41 Correct 4 ms 4480 KB Output is correct
42 Correct 4 ms 4480 KB Output is correct
43 Correct 4 ms 4352 KB Output is correct
44 Correct 4 ms 4352 KB Output is correct
45 Correct 4 ms 4352 KB Output is correct
46 Correct 4 ms 4352 KB Output is correct
47 Correct 4 ms 4352 KB Output is correct
48 Correct 4 ms 4352 KB Output is correct
49 Correct 4 ms 4352 KB Output is correct
50 Correct 4 ms 4352 KB Output is correct
51 Correct 4 ms 4352 KB Output is correct
52 Correct 4 ms 4480 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4224 KB Output is correct
2 Correct 3 ms 4224 KB Output is correct
3 Correct 3 ms 4224 KB Output is correct
4 Correct 3 ms 4224 KB Output is correct
5 Correct 4 ms 4224 KB Output is correct
6 Correct 3 ms 4224 KB Output is correct
7 Correct 3 ms 4224 KB Output is correct
8 Correct 3 ms 4224 KB Output is correct
9 Correct 3 ms 4224 KB Output is correct
10 Correct 3 ms 4224 KB Output is correct
11 Correct 3 ms 4224 KB Output is correct
12 Correct 3 ms 4224 KB Output is correct
13 Correct 3 ms 4224 KB Output is correct
14 Correct 3 ms 4224 KB Output is correct
15 Correct 4 ms 4224 KB Output is correct
16 Correct 3 ms 4224 KB Output is correct
17 Correct 4 ms 4224 KB Output is correct
18 Correct 3 ms 4224 KB Output is correct
19 Correct 4 ms 4224 KB Output is correct
20 Correct 3 ms 4224 KB Output is correct
21 Correct 4 ms 4224 KB Output is correct
22 Correct 3 ms 4224 KB Output is correct
23 Correct 3 ms 4224 KB Output is correct
24 Correct 3 ms 4224 KB Output is correct
25 Correct 3 ms 4224 KB Output is correct
26 Correct 3 ms 4224 KB Output is correct
27 Correct 4 ms 4224 KB Output is correct
28 Correct 4 ms 4224 KB Output is correct
29 Correct 3 ms 4224 KB Output is correct
30 Correct 3 ms 4224 KB Output is correct
31 Correct 3 ms 4224 KB Output is correct
32 Correct 3 ms 4224 KB Output is correct
33 Correct 3 ms 4224 KB Output is correct
34 Correct 3 ms 4224 KB Output is correct
35 Correct 3 ms 4224 KB Output is correct
36 Correct 4 ms 4300 KB Output is correct
37 Correct 3 ms 4224 KB Output is correct
38 Correct 4 ms 4224 KB Output is correct
39 Correct 4 ms 4224 KB Output is correct
40 Correct 3 ms 4224 KB Output is correct
41 Correct 3 ms 4300 KB Output is correct
42 Correct 3 ms 4224 KB Output is correct
43 Correct 4 ms 4352 KB Output is correct
44 Correct 3 ms 4224 KB Output is correct
45 Correct 3 ms 4224 KB Output is correct
46 Correct 3 ms 4224 KB Output is correct
47 Correct 3 ms 4224 KB Output is correct
48 Correct 4 ms 4224 KB Output is correct
49 Correct 3 ms 4224 KB Output is correct
50 Correct 4 ms 4428 KB Output is correct
51 Correct 3 ms 4224 KB Output is correct
52 Correct 3 ms 4352 KB Output is correct
53 Correct 4 ms 4352 KB Output is correct
54 Correct 8 ms 5760 KB Output is correct
55 Correct 8 ms 5760 KB Output is correct
56 Correct 55 ms 17560 KB Output is correct
57 Correct 55 ms 18156 KB Output is correct
58 Correct 57 ms 18028 KB Output is correct
59 Correct 51 ms 18032 KB Output is correct
60 Correct 65 ms 18004 KB Output is correct
61 Correct 54 ms 18028 KB Output is correct
62 Correct 53 ms 18032 KB Output is correct
63 Correct 54 ms 18032 KB Output is correct
64 Correct 54 ms 18032 KB Output is correct
65 Correct 54 ms 18052 KB Output is correct
66 Correct 62 ms 18032 KB Output is correct
67 Correct 55 ms 18032 KB Output is correct
68 Correct 64 ms 18104 KB Output is correct
69 Correct 3 ms 4224 KB Output is correct
70 Correct 4 ms 4224 KB Output is correct
71 Correct 52 ms 18032 KB Output is correct
72 Correct 62 ms 17988 KB Output is correct
73 Correct 54 ms 18032 KB Output is correct
74 Correct 3 ms 4224 KB Output is correct
75 Correct 3 ms 4224 KB Output is correct
76 Correct 4 ms 4204 KB Output is correct
77 Correct 4 ms 4224 KB Output is correct
78 Correct 104 ms 23028 KB Output is correct
79 Correct 73 ms 18672 KB Output is correct
80 Correct 102 ms 23568 KB Output is correct
81 Correct 74 ms 18180 KB Output is correct
82 Correct 118 ms 23500 KB Output is correct
83 Correct 103 ms 20436 KB Output is correct
84 Correct 3 ms 4224 KB Output is correct
85 Correct 3 ms 4296 KB Output is correct
86 Correct 3 ms 4224 KB Output is correct
87 Correct 3 ms 4224 KB Output is correct
88 Correct 4 ms 4480 KB Output is correct
89 Correct 4 ms 4480 KB Output is correct
90 Correct 4 ms 4352 KB Output is correct
91 Correct 4 ms 4352 KB Output is correct
92 Correct 4 ms 4352 KB Output is correct
93 Correct 4 ms 4352 KB Output is correct
94 Correct 4 ms 4352 KB Output is correct
95 Correct 4 ms 4352 KB Output is correct
96 Correct 4 ms 4352 KB Output is correct
97 Correct 4 ms 4352 KB Output is correct
98 Correct 4 ms 4352 KB Output is correct
99 Correct 4 ms 4480 KB Output is correct
100 Correct 4 ms 4480 KB Output is correct
101 Correct 11 ms 6144 KB Output is correct
102 Correct 10 ms 5888 KB Output is correct
103 Correct 133 ms 23536 KB Output is correct
104 Correct 123 ms 23536 KB Output is correct
105 Correct 115 ms 20720 KB Output is correct
106 Correct 106 ms 23408 KB Output is correct
107 Correct 82 ms 18676 KB Output is correct
108 Correct 94 ms 19060 KB Output is correct
109 Correct 60 ms 18288 KB Output is correct
110 Correct 53 ms 17904 KB Output is correct
111 Correct 95 ms 22640 KB Output is correct
112 Correct 115 ms 22004 KB Output is correct
113 Correct 74 ms 18676 KB Output is correct
114 Correct 96 ms 23408 KB Output is correct
115 Correct 96 ms 23408 KB Output is correct