oj.uz

Submission #960511

# Submission time Handle Problem Language Result Execution time Memory
960511 2024-04-10T14:45:03 Z vjudge1 Arranging Shoes (IOI19_shoes) C++17
100 / 100
 279 ms 29952 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define ll long long

using namespace std;

#define all(v) v.begin(),v.end()
#define pb push_back

struct FWT{
	vector<ll> bit;

	FWT(ll n){
		bit.resize(n + 69);
	}

	ll lsb(ll i){
		return (-i) & i;
	}

	void modify(ll i,ll v){
		for(i++;i<bit.size();i += lsb(i))bit[i] += v;
	}

	ll query(ll i){
		ll ans = 0;
		for(i++;i;i -= lsb(i))ans += bit[i];
		return ans;
	}
};

ll count_swaps(vector<int> A) {
	ll n = A.size();

	map<ll,vector<ll> > ind;

	for(ll i = 0;i<n;i++)ind[A[i]].pb(i);
	for(auto &u : ind)reverse(u.second.begin(), u.second.end());
	ll o[n];
	memset(o, -1, sizeof o);
	for(ll i = 0;i<n;i++){
		if(o[i] != -1)continue;
		if(A[i] < 0){
			o[i] = 2 * i + 1;
			o[ind[-A[i]].back()] = 2 * i + 2;
		}else{
			o[i] = 2 * i + 2;
			o[ind[-A[i]].back()] = 2 * i + 1;
		}
		ind[A[i]].pop_back();
		ind[-A[i]].pop_back();
	} 
	ll ans = 0;

	FWT fwt(2 * n);

	for(ll i = n-1;i>=0;i--){
		ans += fwt.query(o[i] - 1);
		fwt.modify(o[i], 1);
	}

	return ans;
}

Compilation message

shoes.cpp: In member function 'void FWT::modify(long long int, long long int)':
shoes.cpp:22:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for(i++;i<bit.size();i += lsb(i))bit[i] += v;
      |           ~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 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 1 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 344 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 0 ms 348 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 0 ms 344 KB Output is correct
2 Correct 0 ms 348 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 344 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 0 ms 348 KB Output is correct
13 Correct 1 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 0 ms 348 KB Output is correct
17 Correct 0 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 1116 KB Output is correct
21 Correct 3 ms 1116 KB Output is correct
22 Correct 28 ms 8392 KB Output is correct
23 Correct 23 ms 8252 KB Output is correct
24 Correct 34 ms 8160 KB Output is correct
25 Correct 23 ms 8268 KB Output is correct
26 Correct 30 ms 9672 KB Output is correct
27 Correct 23 ms 9492 KB Output is correct
28 Correct 24 ms 9652 KB Output is correct
29 Correct 24 ms 9476 KB Output is correct
30 Correct 24 ms 9484 KB Output is correct
31 Correct 36 ms 9448 KB Output is correct
32 Correct 23 ms 9540 KB Output is correct
33 Correct 23 ms 9256 KB Output is correct
34 Correct 24 ms 9552 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 23 ms 9692 KB Output is correct
38 Correct 23 ms 9552 KB Output is correct
39 Correct 23 ms 9552 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 221 ms 28356 KB Output is correct
6 Correct 89 ms 11812 KB Output is correct
7 Correct 220 ms 29788 KB Output is correct
8 Correct 25 ms 10000 KB Output is correct
9 Correct 232 ms 29792 KB Output is correct
10 Correct 166 ms 19496 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 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 1 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 344 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 0 ms 348 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 1 ms 604 KB Output is correct
42 Correct 1 ms 604 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 652 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 348 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 600 KB Output is correct
52 Correct 1 ms 604 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 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 1 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 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 344 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 0 ms 348 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 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 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 0 ms 348 KB Output is correct
51 Correct 0 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 1116 KB Output is correct
55 Correct 3 ms 1116 KB Output is correct
56 Correct 28 ms 8392 KB Output is correct
57 Correct 23 ms 8252 KB Output is correct
58 Correct 34 ms 8160 KB Output is correct
59 Correct 23 ms 8268 KB Output is correct
60 Correct 30 ms 9672 KB Output is correct
61 Correct 23 ms 9492 KB Output is correct
62 Correct 24 ms 9652 KB Output is correct
63 Correct 24 ms 9476 KB Output is correct
64 Correct 24 ms 9484 KB Output is correct
65 Correct 36 ms 9448 KB Output is correct
66 Correct 23 ms 9540 KB Output is correct
67 Correct 23 ms 9256 KB Output is correct
68 Correct 24 ms 9552 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 23 ms 9692 KB Output is correct
72 Correct 23 ms 9552 KB Output is correct
73 Correct 23 ms 9552 KB Output is correct
74 Correct 1 ms 352 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 221 ms 28356 KB Output is correct
79 Correct 89 ms 11812 KB Output is correct
80 Correct 220 ms 29788 KB Output is correct
81 Correct 25 ms 10000 KB Output is correct
82 Correct 232 ms 29792 KB Output is correct
83 Correct 166 ms 19496 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 0 ms 348 KB Output is correct
87 Correct 0 ms 348 KB Output is correct
88 Correct 1 ms 604 KB Output is correct
89 Correct 1 ms 604 KB Output is correct
90 Correct 1 ms 604 KB Output is correct
91 Correct 1 ms 652 KB Output is correct
92 Correct 1 ms 604 KB Output is correct
93 Correct 1 ms 604 KB Output is correct
94 Correct 1 ms 348 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 600 KB Output is correct
99 Correct 1 ms 604 KB Output is correct
100 Correct 1 ms 604 KB Output is correct
101 Correct 15 ms 2908 KB Output is correct
102 Correct 8 ms 1628 KB Output is correct
103 Correct 279 ms 29788 KB Output is correct
104 Correct 230 ms 29784 KB Output is correct
105 Correct 167 ms 20628 KB Output is correct
106 Correct 251 ms 29796 KB Output is correct
107 Correct 96 ms 12256 KB Output is correct
108 Correct 102 ms 14368 KB Output is correct
109 Correct 28 ms 10288 KB Output is correct
110 Correct 23 ms 9548 KB Output is correct
111 Correct 202 ms 27224 KB Output is correct
112 Correct 232 ms 24932 KB Output is correct
113 Correct 90 ms 12296 KB Output is correct
114 Correct 246 ms 29752 KB Output is correct
115 Correct 251 ms 29952 KB Output is correct