oj.uz

Submission #437475

# Submission time Handle Problem Language Result Execution time Memory
437475 2021-06-26T11:10:30 Z robertbarbu27 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 93 ms 12012 KB 
#include <bits/stdc++.h>
#define nl '\n'
#define pb push_back
#define ll long long
#define VMAX 100001
#define NMAX 35005
#define INF 10000000000000000

using namespace std;
vector<int> poz[200005];
int v[200005],ant[200005],N;
int aib[200005];
void update(int poz,int val)
{
    for(int i=poz;i<=2*N;i+=(i&(-i)))
    {
        aib[i]+=val;
    }
}
int query(int poz)
{
    int ans=0;
    for(int i=poz;i>0;i-=i&(-i))
    {
        ans+=aib[i];
    }
    return ans;
}
long long count_swaps(std::vector<int> s)
{
    N=s.size()/2;
    //cout<<N<<" ";
    for(int i=0;i<2*N;i++)
    {
        poz[abs(s[i])].pb(i+1);
        v[i+1]=s[i];
    }
        //cout<<N<<" ";
    long long ans=0;
    for(int i=1;i<=N;i++)
    {
        vector<int> pl,mn;
        for(int j=0;j<poz[i].size();j++)
        {
            if(v[poz[i][j]]>0)
            {
                pl.pb(poz[i][j]);
            }
            else mn.pb(poz[i][j]);
        }
        for(int j=0;j<mn.size();j++)
        {
            if(mn[j]>pl[j])
            {
                swap(mn[j],pl[j]);
                swap(v[mn[j]],v[pl[j]]);
                ans++;

            }
            ant[pl[j]]=mn[j];
        }
    }
    for(int i=2*N;i>=1;i--)
    {
        if(v[i]>0)
        {
            int x=i-query(i);
            int y=ant[i]-query(ant[i]);
            ans+=x-y-1;
            //cout<<ant[i]<<" ";
            update(ant[i],1);
        }
    }

    return ans;


}
/*
int main() {
	int n;
	assert(1 == scanf("%d", &n));
	vector<int> S(2 * n);
	for (int i = 0; i < 2 * n; i++)
		assert(1 == scanf("%d", &S[i]));
	fclose(stdin);

	long long result = count_swaps(S);

	printf("%lld\n", result);
	fclose(stdout);
	return 0;
}
*/

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:43:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |         for(int j=0;j<poz[i].size();j++)
      |                     ~^~~~~~~~~~~~~~
shoes.cpp:51:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |         for(int j=0;j<mn.size();j++)
      |                     ~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 5 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 5 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 3 ms 4972 KB Output is correct
22 Correct 4 ms 4952 KB Output is correct
23 Correct 3 ms 4936 KB Output is correct
24 Correct 3 ms 4940 KB Output is correct
25 Correct 4 ms 4940 KB Output is correct
26 Correct 4 ms 4940 KB Output is correct
27 Correct 4 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 3 ms 4940 KB Output is correct
30 Correct 4 ms 4940 KB Output is correct
31 Correct 4 ms 4940 KB Output is correct
32 Correct 4 ms 4940 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 3 ms 4940 KB Output is correct
36 Correct 3 ms 4940 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4932 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 4 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 7 ms 5572 KB Output is correct
21 Correct 8 ms 5580 KB Output is correct
22 Correct 41 ms 10504 KB Output is correct
23 Correct 44 ms 10108 KB Output is correct
24 Correct 41 ms 10296 KB Output is correct
25 Correct 34 ms 9744 KB Output is correct
26 Correct 39 ms 10124 KB Output is correct
27 Correct 36 ms 10128 KB Output is correct
28 Correct 36 ms 9732 KB Output is correct
29 Correct 36 ms 9784 KB Output is correct
30 Correct 35 ms 9744 KB Output is correct
31 Correct 39 ms 10128 KB Output is correct
32 Correct 35 ms 9732 KB Output is correct
33 Correct 35 ms 9740 KB Output is correct
34 Correct 42 ms 9732 KB Output is correct
35 Correct 3 ms 4940 KB Output is correct
36 Correct 4 ms 5008 KB Output is correct
37 Correct 44 ms 9784 KB Output is correct
38 Correct 35 ms 9736 KB Output is correct
39 Correct 34 ms 9740 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 4 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 62 ms 11160 KB Output is correct
6 Correct 46 ms 9428 KB Output is correct
7 Correct 70 ms 11164 KB Output is correct
8 Correct 37 ms 9212 KB Output is correct
9 Correct 65 ms 11236 KB Output is correct
10 Correct 67 ms 10132 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 5 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 5 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 3 ms 4972 KB Output is correct
22 Correct 4 ms 4952 KB Output is correct
23 Correct 3 ms 4936 KB Output is correct
24 Correct 3 ms 4940 KB Output is correct
25 Correct 4 ms 4940 KB Output is correct
26 Correct 4 ms 4940 KB Output is correct
27 Correct 4 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 3 ms 4940 KB Output is correct
30 Correct 4 ms 4940 KB Output is correct
31 Correct 4 ms 4940 KB Output is correct
32 Correct 4 ms 4940 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 3 ms 4940 KB Output is correct
36 Correct 3 ms 4940 KB Output is correct
37 Correct 3 ms 4940 KB Output is correct
38 Correct 4 ms 4940 KB Output is correct
39 Correct 4 ms 4940 KB Output is correct
40 Correct 4 ms 4940 KB Output is correct
41 Correct 4 ms 4940 KB Output is correct
42 Correct 4 ms 5068 KB Output is correct
43 Correct 4 ms 4940 KB Output is correct
44 Correct 4 ms 4940 KB Output is correct
45 Correct 4 ms 4940 KB Output is correct
46 Correct 5 ms 4940 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 5 ms 4940 KB Output is correct
50 Correct 3 ms 4940 KB Output is correct
51 Correct 3 ms 4940 KB Output is correct
52 Correct 4 ms 4940 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 5 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 4 ms 4940 KB Output is correct
17 Correct 5 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 3 ms 4972 KB Output is correct
22 Correct 4 ms 4952 KB Output is correct
23 Correct 3 ms 4936 KB Output is correct
24 Correct 3 ms 4940 KB Output is correct
25 Correct 4 ms 4940 KB Output is correct
26 Correct 4 ms 4940 KB Output is correct
27 Correct 4 ms 4940 KB Output is correct
28 Correct 4 ms 4940 KB Output is correct
29 Correct 3 ms 4940 KB Output is correct
30 Correct 4 ms 4940 KB Output is correct
31 Correct 4 ms 4940 KB Output is correct
32 Correct 4 ms 4940 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 3 ms 4940 KB Output is correct
35 Correct 3 ms 4940 KB Output is correct
36 Correct 3 ms 4940 KB Output is correct
37 Correct 3 ms 4940 KB Output is correct
38 Correct 3 ms 4932 KB Output is correct
39 Correct 3 ms 4940 KB Output is correct
40 Correct 4 ms 4940 KB Output is correct
41 Correct 4 ms 4940 KB Output is correct
42 Correct 4 ms 4940 KB Output is correct
43 Correct 4 ms 4940 KB Output is correct
44 Correct 3 ms 4940 KB Output is correct
45 Correct 3 ms 4940 KB Output is correct
46 Correct 3 ms 4940 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 3 ms 4940 KB Output is correct
50 Correct 3 ms 4940 KB Output is correct
51 Correct 3 ms 4940 KB Output is correct
52 Correct 4 ms 4940 KB Output is correct
53 Correct 4 ms 4940 KB Output is correct
54 Correct 7 ms 5572 KB Output is correct
55 Correct 8 ms 5580 KB Output is correct
56 Correct 41 ms 10504 KB Output is correct
57 Correct 44 ms 10108 KB Output is correct
58 Correct 41 ms 10296 KB Output is correct
59 Correct 34 ms 9744 KB Output is correct
60 Correct 39 ms 10124 KB Output is correct
61 Correct 36 ms 10128 KB Output is correct
62 Correct 36 ms 9732 KB Output is correct
63 Correct 36 ms 9784 KB Output is correct
64 Correct 35 ms 9744 KB Output is correct
65 Correct 39 ms 10128 KB Output is correct
66 Correct 35 ms 9732 KB Output is correct
67 Correct 35 ms 9740 KB Output is correct
68 Correct 42 ms 9732 KB Output is correct
69 Correct 3 ms 4940 KB Output is correct
70 Correct 4 ms 5008 KB Output is correct
71 Correct 44 ms 9784 KB Output is correct
72 Correct 35 ms 9736 KB Output is correct
73 Correct 34 ms 9740 KB Output is correct
74 Correct 4 ms 4940 KB Output is correct
75 Correct 4 ms 4940 KB Output is correct
76 Correct 4 ms 4940 KB Output is correct
77 Correct 4 ms 4940 KB Output is correct
78 Correct 62 ms 11160 KB Output is correct
79 Correct 46 ms 9428 KB Output is correct
80 Correct 70 ms 11164 KB Output is correct
81 Correct 37 ms 9212 KB Output is correct
82 Correct 65 ms 11236 KB Output is correct
83 Correct 67 ms 10132 KB Output is correct
84 Correct 3 ms 4940 KB Output is correct
85 Correct 4 ms 4940 KB Output is correct
86 Correct 4 ms 4940 KB Output is correct
87 Correct 4 ms 4940 KB Output is correct
88 Correct 4 ms 4940 KB Output is correct
89 Correct 4 ms 5068 KB Output is correct
90 Correct 4 ms 4940 KB Output is correct
91 Correct 4 ms 4940 KB Output is correct
92 Correct 4 ms 4940 KB Output is correct
93 Correct 5 ms 4940 KB Output is correct
94 Correct 4 ms 4940 KB Output is correct
95 Correct 4 ms 4940 KB Output is correct
96 Correct 5 ms 4940 KB Output is correct
97 Correct 3 ms 4940 KB Output is correct
98 Correct 3 ms 4940 KB Output is correct
99 Correct 4 ms 4940 KB Output is correct
100 Correct 5 ms 4940 KB Output is correct
101 Correct 9 ms 5580 KB Output is correct
102 Correct 9 ms 5452 KB Output is correct
103 Correct 70 ms 12012 KB Output is correct
104 Correct 66 ms 11952 KB Output is correct
105 Correct 75 ms 10828 KB Output is correct
106 Correct 93 ms 11156 KB Output is correct
107 Correct 53 ms 10132 KB Output is correct
108 Correct 51 ms 10256 KB Output is correct
109 Correct 37 ms 9656 KB Output is correct
110 Correct 36 ms 9784 KB Output is correct
111 Correct 92 ms 10896 KB Output is correct
112 Correct 70 ms 11312 KB Output is correct
113 Correct 62 ms 9620 KB Output is correct
114 Correct 72 ms 11244 KB Output is correct
115 Correct 67 ms 11176 KB Output is correct