oj.uz

Submission #824517

# Submission time Handle Problem Language Result Execution time Memory
824517 2023-08-14T07:19:39 Z caganyanmaz Arranging Shoes (IOI19_shoes) C++17
100 / 100
 180 ms 32932 KB 
#include <bits/stdc++.h>
#define mp(x...) array<int, 2>({x})
#define pb push_back
#define int int64_t
#define vi vector<int32_t> 
using namespace std;
#include "shoes.h"

constexpr static int MXSIZE = 1e6;

struct Fenwick
{
	int v[MXSIZE];
	void set(int i, int val) { for (++i;i<MXSIZE;i+=i&(-i)) v[i] += val; }
	int get(int i) { int res = 0; for(++i;i>0;i-=i&(-i)) res += v[i]; return res; }
	int get(int l, int r) { return get(r) - get(l); }
};

int subtask1(vi& s)
{
	if (s[0] > 0)
		return 1;
	else
		return 0;
}

Fenwick fw;
int last[2][MXSIZE];
bitset<MXSIZE> paired;

map<array<int, 2>, int> p;


long long count_swaps(vi s)
{
	for (int i = 0; i < s.size(); i++)
	{
		int j = s[i] > 0 ? 1 : 0;
		array<int, 2> q = {s[i], last[j][abs(s[i])]};
		p[q] = i;
		last[j][abs(s[i])]++;
	}
	for (int i = 0; i < 2; i++)
		for (int j = 0; j < MXSIZE; j++)
			last[i][j] = 0;
	int res = 0;
	for (int i = 0; i < s.size(); i++)
	{
		int j = s[i] > 0 ? 1 : 0;
		array<int, 2> q = {-s[i], last[j][abs(s[i])]};

		last[j][abs(s[i])]++;
		if (paired[i])
			continue;
	
		int ps = p[q];
		paired[ps] = true;
		res += ps - i - 1 - fw.get(i, ps);
		if (s[i] > 0)
			res++;
		fw.set(ps, 1);
	}
	return res;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:36:20: warning: comparison of integer expressions of different signedness: 'int64_t' {aka 'long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |  for (int i = 0; i < s.size(); i++)
      |                  ~~^~~~~~~~~~
shoes.cpp:47:20: warning: comparison of integer expressions of different signedness: 'int64_t' {aka 'long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |  for (int i = 0; i < s.size(); i++)
      |                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 15956 KB Output is correct
2 Correct 6 ms 15956 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 15956 KB Output is correct
2 Correct 6 ms 15956 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 6 ms 15956 KB Output is correct
6 Correct 7 ms 16008 KB Output is correct
7 Correct 6 ms 15956 KB Output is correct
8 Correct 6 ms 15956 KB Output is correct
9 Correct 6 ms 15956 KB Output is correct
10 Correct 6 ms 15956 KB Output is correct
11 Correct 6 ms 15956 KB Output is correct
12 Correct 6 ms 15956 KB Output is correct
13 Correct 6 ms 15956 KB Output is correct
14 Correct 6 ms 15924 KB Output is correct
15 Correct 7 ms 15956 KB Output is correct
16 Correct 6 ms 15928 KB Output is correct
17 Correct 6 ms 15924 KB Output is correct
18 Correct 6 ms 16004 KB Output is correct
19 Correct 7 ms 15956 KB Output is correct
20 Correct 6 ms 15956 KB Output is correct
21 Correct 6 ms 15936 KB Output is correct
22 Correct 6 ms 16020 KB Output is correct
23 Correct 7 ms 15964 KB Output is correct
24 Correct 6 ms 15956 KB Output is correct
25 Correct 6 ms 15920 KB Output is correct
26 Correct 7 ms 15956 KB Output is correct
27 Correct 6 ms 15956 KB Output is correct
28 Correct 8 ms 15956 KB Output is correct
29 Correct 7 ms 15956 KB Output is correct
30 Correct 6 ms 15956 KB Output is correct
31 Correct 6 ms 15924 KB Output is correct
32 Correct 6 ms 15952 KB Output is correct
33 Correct 6 ms 16000 KB Output is correct
34 Correct 6 ms 15956 KB Output is correct
35 Correct 7 ms 15924 KB Output is correct
36 Correct 6 ms 15956 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 15956 KB Output is correct
2 Correct 6 ms 15956 KB Output is correct
3 Correct 6 ms 15932 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 6 ms 15956 KB Output is correct
6 Correct 6 ms 16000 KB Output is correct
7 Correct 7 ms 15924 KB Output is correct
8 Correct 6 ms 15956 KB Output is correct
9 Correct 6 ms 15956 KB Output is correct
10 Correct 6 ms 15956 KB Output is correct
11 Correct 8 ms 15956 KB Output is correct
12 Correct 6 ms 15956 KB Output is correct
13 Correct 6 ms 15956 KB Output is correct
14 Correct 8 ms 15956 KB Output is correct
15 Correct 6 ms 15924 KB Output is correct
16 Correct 8 ms 16008 KB Output is correct
17 Correct 6 ms 15956 KB Output is correct
18 Correct 7 ms 16060 KB Output is correct
19 Correct 7 ms 16084 KB Output is correct
20 Correct 12 ms 17620 KB Output is correct
21 Correct 11 ms 17596 KB Output is correct
22 Correct 71 ms 32716 KB Output is correct
23 Correct 88 ms 32740 KB Output is correct
24 Correct 79 ms 32768 KB Output is correct
25 Correct 89 ms 31908 KB Output is correct
26 Correct 64 ms 32932 KB Output is correct
27 Correct 85 ms 32692 KB Output is correct
28 Correct 90 ms 32044 KB Output is correct
29 Correct 76 ms 32140 KB Output is correct
30 Correct 83 ms 32348 KB Output is correct
31 Correct 70 ms 32820 KB Output is correct
32 Correct 74 ms 32044 KB Output is correct
33 Correct 78 ms 31940 KB Output is correct
34 Correct 77 ms 32048 KB Output is correct
35 Correct 6 ms 15988 KB Output is correct
36 Correct 6 ms 15956 KB Output is correct
37 Correct 86 ms 32152 KB Output is correct
38 Correct 76 ms 32084 KB Output is correct
39 Correct 75 ms 32072 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 15956 KB Output is correct
2 Correct 6 ms 16012 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 116 ms 31800 KB Output is correct
6 Correct 144 ms 31444 KB Output is correct
7 Correct 118 ms 31308 KB Output is correct
8 Correct 68 ms 31356 KB Output is correct
9 Correct 121 ms 31280 KB Output is correct
10 Correct 124 ms 31384 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 15956 KB Output is correct
2 Correct 6 ms 15956 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 6 ms 15956 KB Output is correct
6 Correct 7 ms 16008 KB Output is correct
7 Correct 6 ms 15956 KB Output is correct
8 Correct 6 ms 15956 KB Output is correct
9 Correct 6 ms 15956 KB Output is correct
10 Correct 6 ms 15956 KB Output is correct
11 Correct 6 ms 15956 KB Output is correct
12 Correct 6 ms 15956 KB Output is correct
13 Correct 6 ms 15956 KB Output is correct
14 Correct 6 ms 15924 KB Output is correct
15 Correct 7 ms 15956 KB Output is correct
16 Correct 6 ms 15928 KB Output is correct
17 Correct 6 ms 15924 KB Output is correct
18 Correct 6 ms 16004 KB Output is correct
19 Correct 7 ms 15956 KB Output is correct
20 Correct 6 ms 15956 KB Output is correct
21 Correct 6 ms 15936 KB Output is correct
22 Correct 6 ms 16020 KB Output is correct
23 Correct 7 ms 15964 KB Output is correct
24 Correct 6 ms 15956 KB Output is correct
25 Correct 6 ms 15920 KB Output is correct
26 Correct 7 ms 15956 KB Output is correct
27 Correct 6 ms 15956 KB Output is correct
28 Correct 8 ms 15956 KB Output is correct
29 Correct 7 ms 15956 KB Output is correct
30 Correct 6 ms 15956 KB Output is correct
31 Correct 6 ms 15924 KB Output is correct
32 Correct 6 ms 15952 KB Output is correct
33 Correct 6 ms 16000 KB Output is correct
34 Correct 6 ms 15956 KB Output is correct
35 Correct 7 ms 15924 KB Output is correct
36 Correct 6 ms 15956 KB Output is correct
37 Correct 6 ms 15956 KB Output is correct
38 Correct 6 ms 15924 KB Output is correct
39 Correct 7 ms 15916 KB Output is correct
40 Correct 7 ms 15956 KB Output is correct
41 Correct 8 ms 16172 KB Output is correct
42 Correct 7 ms 16084 KB Output is correct
43 Correct 7 ms 16144 KB Output is correct
44 Correct 7 ms 16056 KB Output is correct
45 Correct 7 ms 16060 KB Output is correct
46 Correct 7 ms 16084 KB Output is correct
47 Correct 7 ms 16060 KB Output is correct
48 Correct 7 ms 16084 KB Output is correct
49 Correct 7 ms 16064 KB Output is correct
50 Correct 7 ms 16084 KB Output is correct
51 Correct 7 ms 16084 KB Output is correct
52 Correct 7 ms 16060 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 15956 KB Output is correct
2 Correct 6 ms 15956 KB Output is correct
3 Correct 6 ms 15956 KB Output is correct
4 Correct 6 ms 15956 KB Output is correct
5 Correct 6 ms 15956 KB Output is correct
6 Correct 7 ms 16008 KB Output is correct
7 Correct 6 ms 15956 KB Output is correct
8 Correct 6 ms 15956 KB Output is correct
9 Correct 6 ms 15956 KB Output is correct
10 Correct 6 ms 15956 KB Output is correct
11 Correct 6 ms 15956 KB Output is correct
12 Correct 6 ms 15956 KB Output is correct
13 Correct 6 ms 15956 KB Output is correct
14 Correct 6 ms 15924 KB Output is correct
15 Correct 7 ms 15956 KB Output is correct
16 Correct 6 ms 15928 KB Output is correct
17 Correct 6 ms 15924 KB Output is correct
18 Correct 6 ms 16004 KB Output is correct
19 Correct 7 ms 15956 KB Output is correct
20 Correct 6 ms 15956 KB Output is correct
21 Correct 6 ms 15936 KB Output is correct
22 Correct 6 ms 16020 KB Output is correct
23 Correct 7 ms 15964 KB Output is correct
24 Correct 6 ms 15956 KB Output is correct
25 Correct 6 ms 15920 KB Output is correct
26 Correct 7 ms 15956 KB Output is correct
27 Correct 6 ms 15956 KB Output is correct
28 Correct 8 ms 15956 KB Output is correct
29 Correct 7 ms 15956 KB Output is correct
30 Correct 6 ms 15956 KB Output is correct
31 Correct 6 ms 15924 KB Output is correct
32 Correct 6 ms 15952 KB Output is correct
33 Correct 6 ms 16000 KB Output is correct
34 Correct 6 ms 15956 KB Output is correct
35 Correct 7 ms 15924 KB Output is correct
36 Correct 6 ms 15956 KB Output is correct
37 Correct 6 ms 15932 KB Output is correct
38 Correct 6 ms 15956 KB Output is correct
39 Correct 6 ms 15956 KB Output is correct
40 Correct 6 ms 16000 KB Output is correct
41 Correct 7 ms 15924 KB Output is correct
42 Correct 6 ms 15956 KB Output is correct
43 Correct 6 ms 15956 KB Output is correct
44 Correct 6 ms 15956 KB Output is correct
45 Correct 8 ms 15956 KB Output is correct
46 Correct 6 ms 15956 KB Output is correct
47 Correct 6 ms 15956 KB Output is correct
48 Correct 8 ms 15956 KB Output is correct
49 Correct 6 ms 15924 KB Output is correct
50 Correct 8 ms 16008 KB Output is correct
51 Correct 6 ms 15956 KB Output is correct
52 Correct 7 ms 16060 KB Output is correct
53 Correct 7 ms 16084 KB Output is correct
54 Correct 12 ms 17620 KB Output is correct
55 Correct 11 ms 17596 KB Output is correct
56 Correct 71 ms 32716 KB Output is correct
57 Correct 88 ms 32740 KB Output is correct
58 Correct 79 ms 32768 KB Output is correct
59 Correct 89 ms 31908 KB Output is correct
60 Correct 64 ms 32932 KB Output is correct
61 Correct 85 ms 32692 KB Output is correct
62 Correct 90 ms 32044 KB Output is correct
63 Correct 76 ms 32140 KB Output is correct
64 Correct 83 ms 32348 KB Output is correct
65 Correct 70 ms 32820 KB Output is correct
66 Correct 74 ms 32044 KB Output is correct
67 Correct 78 ms 31940 KB Output is correct
68 Correct 77 ms 32048 KB Output is correct
69 Correct 6 ms 15988 KB Output is correct
70 Correct 6 ms 15956 KB Output is correct
71 Correct 86 ms 32152 KB Output is correct
72 Correct 76 ms 32084 KB Output is correct
73 Correct 75 ms 32072 KB Output is correct
74 Correct 6 ms 15956 KB Output is correct
75 Correct 6 ms 16012 KB Output is correct
76 Correct 6 ms 15956 KB Output is correct
77 Correct 6 ms 15956 KB Output is correct
78 Correct 116 ms 31800 KB Output is correct
79 Correct 144 ms 31444 KB Output is correct
80 Correct 118 ms 31308 KB Output is correct
81 Correct 68 ms 31356 KB Output is correct
82 Correct 121 ms 31280 KB Output is correct
83 Correct 124 ms 31384 KB Output is correct
84 Correct 6 ms 15956 KB Output is correct
85 Correct 6 ms 15924 KB Output is correct
86 Correct 7 ms 15916 KB Output is correct
87 Correct 7 ms 15956 KB Output is correct
88 Correct 8 ms 16172 KB Output is correct
89 Correct 7 ms 16084 KB Output is correct
90 Correct 7 ms 16144 KB Output is correct
91 Correct 7 ms 16056 KB Output is correct
92 Correct 7 ms 16060 KB Output is correct
93 Correct 7 ms 16084 KB Output is correct
94 Correct 7 ms 16060 KB Output is correct
95 Correct 7 ms 16084 KB Output is correct
96 Correct 7 ms 16064 KB Output is correct
97 Correct 7 ms 16084 KB Output is correct
98 Correct 7 ms 16084 KB Output is correct
99 Correct 7 ms 16060 KB Output is correct
100 Correct 7 ms 16084 KB Output is correct
101 Correct 15 ms 17620 KB Output is correct
102 Correct 17 ms 17588 KB Output is correct
103 Correct 177 ms 32884 KB Output is correct
104 Correct 125 ms 32888 KB Output is correct
105 Correct 147 ms 32892 KB Output is correct
106 Correct 118 ms 32108 KB Output is correct
107 Correct 153 ms 32800 KB Output is correct
108 Correct 150 ms 32904 KB Output is correct
109 Correct 69 ms 32076 KB Output is correct
110 Correct 82 ms 32048 KB Output is correct
111 Correct 119 ms 32076 KB Output is correct
112 Correct 180 ms 32924 KB Output is correct
113 Correct 128 ms 32132 KB Output is correct
114 Correct 120 ms 32232 KB Output is correct
115 Correct 121 ms 32020 KB Output is correct