oj.uz

Submission #314517

# Submission time Handle Problem Language Result Execution time Memory
314517 2020-10-20T07:30:36 Z jaaguptamme Arranging Shoes (IOI19_shoes) C++14
100 / 100
 105 ms 17780 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=400005;
int ar[N];
ll get(int p){
    ll ans=0;
    while(p){
        ans+=ar[p];
        p-=p&(-p);
    }
    return ans;
}
void add(int p,ll val){
    while(p<N){
        ar[p]+=val;
        p+=p&(-p);
    }
}
long long count_swaps(std::vector<int> s) {
    int n=s.size()/2;
    vector<pair<int,int>>g[N];
    for(int i=0;i<s.size();i++){
        g[abs(s[i])].push_back({s[i],i});
        add(i+1,1);
    }
    ll ans=0;
    vector<pair<int,int>>ns;
    for(int i=1;i<=n;i++){
        sort(g[i].begin(),g[i].end());
        int cnt=g[i].size()/2;
        for(int j=0;j<cnt;j++){
            int l=g[i][j].second;
            int r=g[i][j+cnt].second;
            if(l>r){
                ans++;
                swap(l,r);
            }
            ns.push_back({l+1,r+1});
        }
    }
    sort(ns.begin(),ns.end());
    for(auto el:ns){
        int l=el.first,r=el.second;
        ans+=get(r-1)-get(l);
        add(l,-1);add(r,-1);
    }
	return ans;
}
/*int main(){
    vector<int>ar={2,1,-1,-2};
    for(auto el:ar)cout<<el<<endl;
    count_swaps(ar);
    return 0;
}*/

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:24:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 7 ms 9728 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 7 ms 9728 KB Output is correct
23 Correct 7 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 7 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 7 ms 9728 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 9 ms 9728 KB Output is correct
36 Correct 7 ms 9728 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 8 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9856 KB Output is correct
13 Correct 8 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 8 ms 9728 KB Output is correct
20 Correct 13 ms 10496 KB Output is correct
21 Correct 14 ms 10496 KB Output is correct
22 Correct 69 ms 16744 KB Output is correct
23 Correct 64 ms 16744 KB Output is correct
24 Correct 74 ms 16744 KB Output is correct
25 Correct 56 ms 16488 KB Output is correct
26 Correct 72 ms 16872 KB Output is correct
27 Correct 62 ms 16488 KB Output is correct
28 Correct 59 ms 16744 KB Output is correct
29 Correct 60 ms 16744 KB Output is correct
30 Correct 60 ms 16744 KB Output is correct
31 Correct 70 ms 16744 KB Output is correct
32 Correct 60 ms 16744 KB Output is correct
33 Correct 56 ms 16488 KB Output is correct
34 Correct 59 ms 16724 KB Output is correct
35 Correct 7 ms 9728 KB Output is correct
36 Correct 7 ms 9856 KB Output is correct
37 Correct 60 ms 16744 KB Output is correct
38 Correct 60 ms 16744 KB Output is correct
39 Correct 60 ms 16780 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Correct 88 ms 17584 KB Output is correct
6 Correct 79 ms 17016 KB Output is correct
7 Correct 89 ms 17652 KB Output is correct
8 Correct 63 ms 16808 KB Output is correct
9 Correct 93 ms 17652 KB Output is correct
10 Correct 91 ms 17392 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 7 ms 9728 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 7 ms 9728 KB Output is correct
23 Correct 7 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 7 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 7 ms 9728 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 9 ms 9728 KB Output is correct
36 Correct 7 ms 9728 KB Output is correct
37 Correct 7 ms 9728 KB Output is correct
38 Correct 7 ms 9728 KB Output is correct
39 Correct 7 ms 9728 KB Output is correct
40 Correct 7 ms 9728 KB Output is correct
41 Correct 8 ms 9856 KB Output is correct
42 Correct 8 ms 9856 KB Output is correct
43 Correct 8 ms 9856 KB Output is correct
44 Correct 8 ms 9856 KB Output is correct
45 Correct 8 ms 9856 KB Output is correct
46 Correct 8 ms 9856 KB Output is correct
47 Correct 8 ms 9856 KB Output is correct
48 Correct 7 ms 9856 KB Output is correct
49 Correct 8 ms 9856 KB Output is correct
50 Correct 8 ms 9856 KB Output is correct
51 Correct 8 ms 9728 KB Output is correct
52 Correct 8 ms 9856 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9728 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 7 ms 9728 KB Output is correct
4 Correct 7 ms 9728 KB Output is correct
5 Correct 7 ms 9728 KB Output is correct
6 Correct 7 ms 9728 KB Output is correct
7 Correct 7 ms 9728 KB Output is correct
8 Correct 7 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 7 ms 9728 KB Output is correct
15 Correct 7 ms 9728 KB Output is correct
16 Correct 7 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 7 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 7 ms 9728 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 7 ms 9728 KB Output is correct
23 Correct 7 ms 9728 KB Output is correct
24 Correct 7 ms 9728 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 7 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 7 ms 9728 KB Output is correct
29 Correct 7 ms 9728 KB Output is correct
30 Correct 7 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 7 ms 9728 KB Output is correct
33 Correct 7 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 9 ms 9728 KB Output is correct
36 Correct 7 ms 9728 KB Output is correct
37 Correct 7 ms 9728 KB Output is correct
38 Correct 7 ms 9728 KB Output is correct
39 Correct 7 ms 9728 KB Output is correct
40 Correct 7 ms 9728 KB Output is correct
41 Correct 7 ms 9728 KB Output is correct
42 Correct 8 ms 9728 KB Output is correct
43 Correct 7 ms 9728 KB Output is correct
44 Correct 7 ms 9728 KB Output is correct
45 Correct 7 ms 9728 KB Output is correct
46 Correct 7 ms 9856 KB Output is correct
47 Correct 8 ms 9728 KB Output is correct
48 Correct 7 ms 9728 KB Output is correct
49 Correct 7 ms 9728 KB Output is correct
50 Correct 7 ms 9728 KB Output is correct
51 Correct 7 ms 9728 KB Output is correct
52 Correct 7 ms 9728 KB Output is correct
53 Correct 8 ms 9728 KB Output is correct
54 Correct 13 ms 10496 KB Output is correct
55 Correct 14 ms 10496 KB Output is correct
56 Correct 69 ms 16744 KB Output is correct
57 Correct 64 ms 16744 KB Output is correct
58 Correct 74 ms 16744 KB Output is correct
59 Correct 56 ms 16488 KB Output is correct
60 Correct 72 ms 16872 KB Output is correct
61 Correct 62 ms 16488 KB Output is correct
62 Correct 59 ms 16744 KB Output is correct
63 Correct 60 ms 16744 KB Output is correct
64 Correct 60 ms 16744 KB Output is correct
65 Correct 70 ms 16744 KB Output is correct
66 Correct 60 ms 16744 KB Output is correct
67 Correct 56 ms 16488 KB Output is correct
68 Correct 59 ms 16724 KB Output is correct
69 Correct 7 ms 9728 KB Output is correct
70 Correct 7 ms 9856 KB Output is correct
71 Correct 60 ms 16744 KB Output is correct
72 Correct 60 ms 16744 KB Output is correct
73 Correct 60 ms 16780 KB Output is correct
74 Correct 7 ms 9728 KB Output is correct
75 Correct 7 ms 9728 KB Output is correct
76 Correct 7 ms 9728 KB Output is correct
77 Correct 7 ms 9728 KB Output is correct
78 Correct 88 ms 17584 KB Output is correct
79 Correct 79 ms 17016 KB Output is correct
80 Correct 89 ms 17652 KB Output is correct
81 Correct 63 ms 16808 KB Output is correct
82 Correct 93 ms 17652 KB Output is correct
83 Correct 91 ms 17392 KB Output is correct
84 Correct 7 ms 9728 KB Output is correct
85 Correct 7 ms 9728 KB Output is correct
86 Correct 7 ms 9728 KB Output is correct
87 Correct 7 ms 9728 KB Output is correct
88 Correct 8 ms 9856 KB Output is correct
89 Correct 8 ms 9856 KB Output is correct
90 Correct 8 ms 9856 KB Output is correct
91 Correct 8 ms 9856 KB Output is correct
92 Correct 8 ms 9856 KB Output is correct
93 Correct 8 ms 9856 KB Output is correct
94 Correct 8 ms 9856 KB Output is correct
95 Correct 7 ms 9856 KB Output is correct
96 Correct 8 ms 9856 KB Output is correct
97 Correct 8 ms 9856 KB Output is correct
98 Correct 8 ms 9728 KB Output is correct
99 Correct 8 ms 9856 KB Output is correct
100 Correct 8 ms 9856 KB Output is correct
101 Correct 14 ms 10624 KB Output is correct
102 Correct 14 ms 10488 KB Output is correct
103 Correct 105 ms 17652 KB Output is correct
104 Correct 89 ms 17652 KB Output is correct
105 Correct 90 ms 17136 KB Output is correct
106 Correct 90 ms 17652 KB Output is correct
107 Correct 77 ms 16884 KB Output is correct
108 Correct 78 ms 17008 KB Output is correct
109 Correct 63 ms 16744 KB Output is correct
110 Correct 62 ms 16744 KB Output is correct
111 Correct 92 ms 17780 KB Output is correct
112 Correct 103 ms 17776 KB Output is correct
113 Correct 78 ms 17008 KB Output is correct
114 Correct 88 ms 17652 KB Output is correct
115 Correct 90 ms 17656 KB Output is correct