oj.uz

Submission #650014

# Submission time Handle Problem Language Result Execution time Memory
650014 2022-10-11T22:56:57 Z Markomafko972 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 82 ms 16028 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define X first
#define Y second
#define pb push_back
#define pii pair<int, int>
typedef long long ll;
using namespace std;

const int MOD = 1e9 + 7;
const ll INF = 1e18;
const int OFF = (1 << 20);

int n, koji = 1;
int bio[200005];
int loga[200005];
pair<int, int> gdje[100005];
int reshi[100005];

vector<int> br[100005];
vector<int> mbr[100005];

void update(int x, int y) {
	x++;
	for (x; x <= n; x += x & -x) loga[x] += y;
}

int query(int x) {
	int out = 0;
	x++;
	for (x; x > 0; x -= x & -x) out += loga[x];
	return out;
}

long long count_swaps(vector<int> v) {
	n = v.size();
	
	for (int i = 0; i < n; i++) {
		if (v[i] < 0) mbr[-v[i]].push_back(i);
		else br[v[i]].push_back(i);
	}
	
	for (int i = 1; i <= n/2; i++) {
		while (br[i].size() > 0) {
			gdje[koji].X = min(mbr[i].back(), br[i].back());
			gdje[koji].Y = max(mbr[i].back(), br[i].back());
			v[mbr[i].back()] = -koji;
			v[br[i].back()] = koji;
			koji++;
			br[i].pop_back();
			mbr[i].pop_back();
		}
	}
	
	/*for (int i = 0; i < n; i++) {
		if (bio[abs(v[i])] == 0) {
			bio[abs(v[i])] = koji;
			v[i] = v[i]/abs(v[i])*koji;
			gdje[koji].X = i;
			koji++;
		}
		else {
			gdje[bio[abs(v[i])]].Y = i;
			v[i] = v[i]/abs(v[i])*bio[abs(v[i])];
		}
	}*/
	
	for (int i = 0; i < n; i++) update(i, 1);
	
	ll sol = 0;
	for (int i = 0; i < n; i++) {
		if (reshi[abs(v[i])]) continue;
		int tren = query(gdje[abs(v[i])].Y) - query(gdje[abs(v[i])].X);
		if (v[i] < 0) tren--;
		sol += tren;
		
		update(gdje[abs(v[i])].X+1, 1);
		update(gdje[abs(v[i])].Y, -1);
		reshi[abs(v[i])] = 1;
	}
	return sol;
}

Compilation message

shoes.cpp: In function 'void update(int, int)':
shoes.cpp:25:7: warning: statement has no effect [-Wunused-value]
   25 |  for (x; x <= n; x += x & -x) loga[x] += y;
      |       ^
shoes.cpp: In function 'int query(int)':
shoes.cpp:31:7: warning: statement has no effect [-Wunused-value]
   31 |  for (x; x > 0; x -= x & -x) out += loga[x];
      |       ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5008 KB Output is correct
2 Correct 4 ms 4948 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5008 KB Output is correct
2 Correct 4 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 4 ms 5012 KB Output is correct
6 Correct 4 ms 4948 KB Output is correct
7 Correct 4 ms 5012 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 5 ms 4948 KB Output is correct
10 Correct 5 ms 5016 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 4 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 4 ms 5012 KB Output is correct
16 Correct 4 ms 5012 KB Output is correct
17 Correct 4 ms 4948 KB Output is correct
18 Correct 4 ms 4948 KB Output is correct
19 Correct 6 ms 4948 KB Output is correct
20 Correct 5 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5012 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5012 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 4948 KB Output is correct
29 Correct 3 ms 5012 KB Output is correct
30 Correct 3 ms 5012 KB Output is correct
31 Correct 3 ms 4948 KB Output is correct
32 Correct 3 ms 4948 KB Output is correct
33 Correct 3 ms 4948 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 5012 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5008 KB Output is correct
2 Correct 4 ms 4948 KB Output is correct
3 Correct 3 ms 5008 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5016 KB Output is correct
6 Correct 4 ms 5016 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 5012 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 5008 KB Output is correct
13 Correct 4 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 5008 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 6 ms 5588 KB Output is correct
21 Correct 6 ms 5588 KB Output is correct
22 Correct 36 ms 10604 KB Output is correct
23 Correct 36 ms 10888 KB Output is correct
24 Correct 50 ms 10752 KB Output is correct
25 Correct 30 ms 10520 KB Output is correct
26 Correct 35 ms 10688 KB Output is correct
27 Correct 42 ms 10476 KB Output is correct
28 Correct 32 ms 10644 KB Output is correct
29 Correct 32 ms 10640 KB Output is correct
30 Correct 38 ms 10672 KB Output is correct
31 Correct 40 ms 10644 KB Output is correct
32 Correct 32 ms 10620 KB Output is correct
33 Correct 30 ms 10440 KB Output is correct
34 Correct 34 ms 10624 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 3 ms 5012 KB Output is correct
37 Correct 32 ms 10668 KB Output is correct
38 Correct 32 ms 10692 KB Output is correct
39 Correct 32 ms 10644 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 5012 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 65 ms 16028 KB Output is correct
6 Correct 45 ms 11156 KB Output is correct
7 Correct 56 ms 16016 KB Output is correct
8 Correct 31 ms 10660 KB Output is correct
9 Correct 61 ms 16020 KB Output is correct
10 Correct 49 ms 12876 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5008 KB Output is correct
2 Correct 4 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 4 ms 5012 KB Output is correct
6 Correct 4 ms 4948 KB Output is correct
7 Correct 4 ms 5012 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 5 ms 4948 KB Output is correct
10 Correct 5 ms 5016 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 4 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 4 ms 5012 KB Output is correct
16 Correct 4 ms 5012 KB Output is correct
17 Correct 4 ms 4948 KB Output is correct
18 Correct 4 ms 4948 KB Output is correct
19 Correct 6 ms 4948 KB Output is correct
20 Correct 5 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5012 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5012 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 4948 KB Output is correct
29 Correct 3 ms 5012 KB Output is correct
30 Correct 3 ms 5012 KB Output is correct
31 Correct 3 ms 4948 KB Output is correct
32 Correct 3 ms 4948 KB Output is correct
33 Correct 3 ms 4948 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 5012 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 4948 KB Output is correct
38 Correct 3 ms 5012 KB Output is correct
39 Correct 3 ms 4948 KB Output is correct
40 Correct 3 ms 4948 KB Output is correct
41 Correct 3 ms 5076 KB Output is correct
42 Correct 4 ms 5076 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 4 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 4 ms 5076 KB Output is correct
47 Correct 3 ms 5020 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 3 ms 5028 KB Output is correct
50 Correct 3 ms 4948 KB Output is correct
51 Correct 4 ms 4948 KB Output is correct
52 Correct 4 ms 5076 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5008 KB Output is correct
2 Correct 4 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 4 ms 5012 KB Output is correct
6 Correct 4 ms 4948 KB Output is correct
7 Correct 4 ms 5012 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 5 ms 4948 KB Output is correct
10 Correct 5 ms 5016 KB Output is correct
11 Correct 4 ms 4948 KB Output is correct
12 Correct 4 ms 4948 KB Output is correct
13 Correct 4 ms 4948 KB Output is correct
14 Correct 4 ms 4948 KB Output is correct
15 Correct 4 ms 5012 KB Output is correct
16 Correct 4 ms 5012 KB Output is correct
17 Correct 4 ms 4948 KB Output is correct
18 Correct 4 ms 4948 KB Output is correct
19 Correct 6 ms 4948 KB Output is correct
20 Correct 5 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5012 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 5076 KB Output is correct
26 Correct 3 ms 5012 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 4948 KB Output is correct
29 Correct 3 ms 5012 KB Output is correct
30 Correct 3 ms 5012 KB Output is correct
31 Correct 3 ms 4948 KB Output is correct
32 Correct 3 ms 4948 KB Output is correct
33 Correct 3 ms 4948 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 5012 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 5008 KB Output is correct
38 Correct 3 ms 4948 KB Output is correct
39 Correct 3 ms 5016 KB Output is correct
40 Correct 4 ms 5016 KB Output is correct
41 Correct 3 ms 4948 KB Output is correct
42 Correct 3 ms 5012 KB Output is correct
43 Correct 3 ms 4948 KB Output is correct
44 Correct 3 ms 4948 KB Output is correct
45 Correct 3 ms 4948 KB Output is correct
46 Correct 3 ms 5008 KB Output is correct
47 Correct 4 ms 4948 KB Output is correct
48 Correct 3 ms 4948 KB Output is correct
49 Correct 3 ms 4948 KB Output is correct
50 Correct 3 ms 5008 KB Output is correct
51 Correct 3 ms 4948 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 6 ms 5588 KB Output is correct
55 Correct 6 ms 5588 KB Output is correct
56 Correct 36 ms 10604 KB Output is correct
57 Correct 36 ms 10888 KB Output is correct
58 Correct 50 ms 10752 KB Output is correct
59 Correct 30 ms 10520 KB Output is correct
60 Correct 35 ms 10688 KB Output is correct
61 Correct 42 ms 10476 KB Output is correct
62 Correct 32 ms 10644 KB Output is correct
63 Correct 32 ms 10640 KB Output is correct
64 Correct 38 ms 10672 KB Output is correct
65 Correct 40 ms 10644 KB Output is correct
66 Correct 32 ms 10620 KB Output is correct
67 Correct 30 ms 10440 KB Output is correct
68 Correct 34 ms 10624 KB Output is correct
69 Correct 3 ms 4948 KB Output is correct
70 Correct 3 ms 5012 KB Output is correct
71 Correct 32 ms 10668 KB Output is correct
72 Correct 32 ms 10692 KB Output is correct
73 Correct 32 ms 10644 KB Output is correct
74 Correct 3 ms 4948 KB Output is correct
75 Correct 3 ms 4948 KB Output is correct
76 Correct 3 ms 5012 KB Output is correct
77 Correct 3 ms 4948 KB Output is correct
78 Correct 65 ms 16028 KB Output is correct
79 Correct 45 ms 11156 KB Output is correct
80 Correct 56 ms 16016 KB Output is correct
81 Correct 31 ms 10660 KB Output is correct
82 Correct 61 ms 16020 KB Output is correct
83 Correct 49 ms 12876 KB Output is correct
84 Correct 3 ms 4948 KB Output is correct
85 Correct 3 ms 5012 KB Output is correct
86 Correct 3 ms 4948 KB Output is correct
87 Correct 3 ms 4948 KB Output is correct
88 Correct 3 ms 5076 KB Output is correct
89 Correct 4 ms 5076 KB Output is correct
90 Correct 3 ms 5076 KB Output is correct
91 Correct 4 ms 5076 KB Output is correct
92 Correct 3 ms 5076 KB Output is correct
93 Correct 4 ms 5076 KB Output is correct
94 Correct 3 ms 5020 KB Output is correct
95 Correct 3 ms 5076 KB Output is correct
96 Correct 3 ms 5028 KB Output is correct
97 Correct 3 ms 4948 KB Output is correct
98 Correct 4 ms 4948 KB Output is correct
99 Correct 4 ms 5076 KB Output is correct
100 Correct 3 ms 5076 KB Output is correct
101 Correct 10 ms 5972 KB Output is correct
102 Correct 7 ms 5588 KB Output is correct
103 Correct 62 ms 15960 KB Output is correct
104 Correct 71 ms 16020 KB Output is correct
105 Correct 68 ms 13344 KB Output is correct
106 Correct 64 ms 16016 KB Output is correct
107 Correct 46 ms 11340 KB Output is correct
108 Correct 51 ms 11668 KB Output is correct
109 Correct 35 ms 10892 KB Output is correct
110 Correct 32 ms 10628 KB Output is correct
111 Correct 69 ms 15252 KB Output is correct
112 Correct 82 ms 14632 KB Output is correct
113 Correct 44 ms 11352 KB Output is correct
114 Correct 57 ms 15948 KB Output is correct
115 Correct 55 ms 15928 KB Output is correct