oj.uz

Submission #153122

# Submission time Handle Problem Language Result Execution time Memory
153122 2019-09-12T13:51:45 Z errorgorn Arranging Shoes (IOI19_shoes) C++14
100 / 100
 78 ms 7176 KB 
#include "shoes.h"
#include <cmath>
#include <cstdio>
#include <vector>
#include <utility>
#include <algorithm>
using namespace std;
typedef pair<int,int> ii;
long long s;
vector<ii> pos;
vector<ii> neg;
vector<ii> pairs;
int fen[200005]; ///pos of everything
void upd(int i,int j){
    while (i<=200005){
        fen[i]+=j;
        i+=i&-i;
    }
}
int query(int i){
    int ans=0;
    while (i){
        ans+=fen[i];
        i^=i&-i;
    }
    return ans;
}
long long count_swaps(std::vector<int> shoes) {
    s=shoes.size();
    for (int x=1;x<=s;x++){
        fen[x]=1<<(__builtin_ctz(x));
        if (shoes[x-1]<0) neg.push_back(ii(-shoes[x-1],x));
        else pos.push_back(ii(shoes[x-1],x));
    }
    sort(pos.begin(),pos.end());
    sort(neg.begin(),neg.end());
    int a,b;
    long long ans=0;
    s>>=1;
    for (int x=0;x<s;x++){
        a=neg[x].second;
        b=pos[x].second;
        if (a>b) swap(a,b),ans++;
        pairs.push_back(ii(a,b));
    }
    sort(pairs.begin(),pairs.end());
    for (int x=0;x<s;x++){
        a=pairs[x].first,b=pairs[x].second;
        ans+=query(b)-query(a)-1;
        upd(a,1);
        upd(b,-1);
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 380 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 7 ms 1016 KB Output is correct
21 Correct 7 ms 1088 KB Output is correct
22 Correct 54 ms 7140 KB Output is correct
23 Correct 46 ms 6988 KB Output is correct
24 Correct 50 ms 7048 KB Output is correct
25 Correct 47 ms 6856 KB Output is correct
26 Correct 49 ms 7012 KB Output is correct
27 Correct 44 ms 6884 KB Output is correct
28 Correct 48 ms 7020 KB Output is correct
29 Correct 48 ms 7016 KB Output is correct
30 Correct 52 ms 6992 KB Output is correct
31 Correct 53 ms 7032 KB Output is correct
32 Correct 49 ms 7008 KB Output is correct
33 Correct 47 ms 6860 KB Output is correct
34 Correct 48 ms 7016 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 48 ms 7012 KB Output is correct
38 Correct 48 ms 7020 KB Output is correct
39 Correct 49 ms 7056 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 73 ms 6376 KB Output is correct
6 Correct 77 ms 6388 KB Output is correct
7 Correct 73 ms 6380 KB Output is correct
8 Correct 67 ms 6380 KB Output is correct
9 Correct 73 ms 6380 KB Output is correct
10 Correct 75 ms 5892 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 380 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 380 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 3 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 3 ms 376 KB Output is correct
47 Correct 3 ms 360 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 380 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 380 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 2 ms 376 KB Output is correct
53 Correct 3 ms 376 KB Output is correct
54 Correct 7 ms 1016 KB Output is correct
55 Correct 7 ms 1088 KB Output is correct
56 Correct 54 ms 7140 KB Output is correct
57 Correct 46 ms 6988 KB Output is correct
58 Correct 50 ms 7048 KB Output is correct
59 Correct 47 ms 6856 KB Output is correct
60 Correct 49 ms 7012 KB Output is correct
61 Correct 44 ms 6884 KB Output is correct
62 Correct 48 ms 7020 KB Output is correct
63 Correct 48 ms 7016 KB Output is correct
64 Correct 52 ms 6992 KB Output is correct
65 Correct 53 ms 7032 KB Output is correct
66 Correct 49 ms 7008 KB Output is correct
67 Correct 47 ms 6860 KB Output is correct
68 Correct 48 ms 7016 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 376 KB Output is correct
71 Correct 48 ms 7012 KB Output is correct
72 Correct 48 ms 7020 KB Output is correct
73 Correct 49 ms 7056 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 73 ms 6376 KB Output is correct
79 Correct 77 ms 6388 KB Output is correct
80 Correct 73 ms 6380 KB Output is correct
81 Correct 67 ms 6380 KB Output is correct
82 Correct 73 ms 6380 KB Output is correct
83 Correct 75 ms 5892 KB Output is correct
84 Correct 2 ms 376 KB Output is correct
85 Correct 2 ms 376 KB Output is correct
86 Correct 2 ms 376 KB Output is correct
87 Correct 2 ms 376 KB Output is correct
88 Correct 3 ms 380 KB Output is correct
89 Correct 2 ms 376 KB Output is correct
90 Correct 3 ms 376 KB Output is correct
91 Correct 2 ms 376 KB Output is correct
92 Correct 2 ms 376 KB Output is correct
93 Correct 3 ms 376 KB Output is correct
94 Correct 3 ms 360 KB Output is correct
95 Correct 3 ms 376 KB Output is correct
96 Correct 3 ms 376 KB Output is correct
97 Correct 3 ms 376 KB Output is correct
98 Correct 2 ms 376 KB Output is correct
99 Correct 3 ms 376 KB Output is correct
100 Correct 3 ms 376 KB Output is correct
101 Correct 9 ms 1088 KB Output is correct
102 Correct 9 ms 972 KB Output is correct
103 Correct 77 ms 7176 KB Output is correct
104 Correct 71 ms 7012 KB Output is correct
105 Correct 76 ms 6960 KB Output is correct
106 Correct 74 ms 7020 KB Output is correct
107 Correct 77 ms 7012 KB Output is correct
108 Correct 73 ms 7140 KB Output is correct
109 Correct 67 ms 7092 KB Output is correct
110 Correct 48 ms 7016 KB Output is correct
111 Correct 73 ms 7020 KB Output is correct
112 Correct 76 ms 7012 KB Output is correct
113 Correct 78 ms 7016 KB Output is correct
114 Correct 73 ms 7020 KB Output is correct
115 Correct 73 ms 7148 KB Output is correct