oj.uz

Submission #944806

# Submission time Handle Problem Language Result Execution time Memory
944806 2024-03-13T05:47:18 Z PenguinsAreCute Arranging Shoes (IOI19_shoes) C++17
100 / 100
 68 ms 16656 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
struct ft {
	vector<int> v; int n;
	ft(int _n): n(_n) {v.resize(n+1,0);}
	inline int lsb(int x) {return x&(-x);}
	void up(int x, int u) {
		for(;x<=n;x+=lsb(x)) v[x]+=u;
	}
	int qry(int x) {
		ll ans = 0;
		for(;x;x-=lsb(x)) ans += v[x];
		return ans;
	}
};
long long count_swaps(std::vector<int> s) {
	int n = s.size() / 2;
	vector<int> v, posP[n+1], posN[n+1];
	for(int i=0;i<2*n;i++) {
		if(s[i]<0) posN[-s[i]].push_back(i);
		else posP[s[i]].push_back(i);
	}
	vector<pair<int,int>> vec;
	for(int i=1;i<=n;i++) for(int j=0;j<posN[i].size();j++) vec.push_back({posN[i][j],posP[i][j]});
	sort(vec.begin(),vec.end(),[](pair<int,int> a, pair<int,int> b) {return a.first+a.second<b.first+b.second;});
	v.resize(2*n);
	for(int i=0;i<2*n;i+=2) {
		v[i] = vec[i>>1].first;
		v[i+1] = vec[i>>1].second;
	}
	ll ans = 0; ft fenwick(2*n);
	for(int i=2*n;i--;) {
		ans += fenwick.qry(v[i]);
		fenwick.up(v[i]+1,1);
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:26:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |  for(int i=1;i<=n;i++) for(int j=0;j<posN[i].size();j++) vec.push_back({posN[i][j],posP[i][j]});
      |                                    ~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 552 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 552 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 440 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 436 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 432 KB Output is correct
29 Correct 1 ms 432 KB Output is correct
30 Correct 0 ms 600 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 552 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 436 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 3 ms 1372 KB Output is correct
21 Correct 3 ms 1368 KB Output is correct
22 Correct 31 ms 10988 KB Output is correct
23 Correct 29 ms 11076 KB Output is correct
24 Correct 32 ms 11084 KB Output is correct
25 Correct 33 ms 10948 KB Output is correct
26 Correct 32 ms 11176 KB Output is correct
27 Correct 29 ms 10820 KB Output is correct
28 Correct 32 ms 11188 KB Output is correct
29 Correct 30 ms 11188 KB Output is correct
30 Correct 33 ms 11048 KB Output is correct
31 Correct 35 ms 11224 KB Output is correct
32 Correct 30 ms 11208 KB Output is correct
33 Correct 30 ms 10960 KB Output is correct
34 Correct 30 ms 11052 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 30 ms 11216 KB Output is correct
38 Correct 30 ms 11204 KB Output is correct
39 Correct 31 ms 11408 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 416 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 50 ms 16068 KB Output is correct
6 Correct 39 ms 11716 KB Output is correct
7 Correct 52 ms 16584 KB Output is correct
8 Correct 38 ms 11952 KB Output is correct
9 Correct 52 ms 16584 KB Output is correct
10 Correct 47 ms 13584 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 552 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 440 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 436 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 432 KB Output is correct
29 Correct 1 ms 432 KB Output is correct
30 Correct 0 ms 600 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 452 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 552 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 440 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 436 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 432 KB Output is correct
29 Correct 1 ms 432 KB Output is correct
30 Correct 0 ms 600 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 436 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 3 ms 1372 KB Output is correct
55 Correct 3 ms 1368 KB Output is correct
56 Correct 31 ms 10988 KB Output is correct
57 Correct 29 ms 11076 KB Output is correct
58 Correct 32 ms 11084 KB Output is correct
59 Correct 33 ms 10948 KB Output is correct
60 Correct 32 ms 11176 KB Output is correct
61 Correct 29 ms 10820 KB Output is correct
62 Correct 32 ms 11188 KB Output is correct
63 Correct 30 ms 11188 KB Output is correct
64 Correct 33 ms 11048 KB Output is correct
65 Correct 35 ms 11224 KB Output is correct
66 Correct 30 ms 11208 KB Output is correct
67 Correct 30 ms 10960 KB Output is correct
68 Correct 30 ms 11052 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 30 ms 11216 KB Output is correct
72 Correct 30 ms 11204 KB Output is correct
73 Correct 31 ms 11408 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 416 KB Output is correct
76 Correct 1 ms 348 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 50 ms 16068 KB Output is correct
79 Correct 39 ms 11716 KB Output is correct
80 Correct 52 ms 16584 KB Output is correct
81 Correct 38 ms 11952 KB Output is correct
82 Correct 52 ms 16584 KB Output is correct
83 Correct 47 ms 13584 KB Output is correct
84 Correct 0 ms 344 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 1 ms 348 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 1 ms 348 KB Output is correct
89 Correct 1 ms 348 KB Output is correct
90 Correct 1 ms 348 KB Output is correct
91 Correct 1 ms 348 KB Output is correct
92 Correct 1 ms 344 KB Output is correct
93 Correct 1 ms 348 KB Output is correct
94 Correct 1 ms 452 KB Output is correct
95 Correct 1 ms 348 KB Output is correct
96 Correct 1 ms 348 KB Output is correct
97 Correct 1 ms 348 KB Output is correct
98 Correct 1 ms 348 KB Output is correct
99 Correct 1 ms 348 KB Output is correct
100 Correct 1 ms 348 KB Output is correct
101 Correct 5 ms 1880 KB Output is correct
102 Correct 5 ms 1372 KB Output is correct
103 Correct 68 ms 16652 KB Output is correct
104 Correct 49 ms 16580 KB Output is correct
105 Correct 49 ms 13768 KB Output is correct
106 Correct 48 ms 16580 KB Output is correct
107 Correct 41 ms 11844 KB Output is correct
108 Correct 44 ms 12348 KB Output is correct
109 Correct 36 ms 11472 KB Output is correct
110 Correct 30 ms 11208 KB Output is correct
111 Correct 52 ms 15968 KB Output is correct
112 Correct 49 ms 15056 KB Output is correct
113 Correct 41 ms 11992 KB Output is correct
114 Correct 45 ms 16584 KB Output is correct
115 Correct 46 ms 16656 KB Output is correct