oj.uz

Submission #227190

# Submission time Handle Problem Language Result Execution time Memory
227190 2020-04-26T12:32:26 Z urd05 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 219 ms 23772 KB 
#include <bits/stdc++.h>
using namespace std;

vector<int> pl[100001];
vector<int> mi[100001];
int ind[100001];

struct FenwickTree {
    int tree[200405];
    int sum(int i) {
        int ret=0;
        while (i>0) {
            ret+=tree[i];
            i-=(i&-i);
        }
        return ret;
    }
    void update(int i,int x) {
        while (i<=200005) {
            tree[i]+=x;
            i+=(i&-i);
        }
    }
};

FenwickTree ft;

long long count_swaps(vector<int> v) {
    int n=v.size()/2;
    set<int> s;
    for(int i=0;i<2*n;i++) {
        if (v[i]>0) {
            pl[v[i]].push_back(i+1);
        }
        else {
            mi[-v[i]].push_back(i+1);
        }
    }
    for(int i=1;i<=2*n;i++) {
        ft.update(i,1);
        s.insert(i);
    }
    long long ret=0;
    int used=0;
    for(int i=0;i<n;i++) {
        int mini=1e9;
        int pos=*s.begin();
        int now=v[pos-1];
        if (now<0) {
            now=-now;
        }
        if (pl[now][ind[now]]>mi[now][ind[now]]) {
            ret+=ft.sum(pl[now][ind[now]]-1)-ft.sum(mi[now][ind[now]]);
        }
        else {
            ret+=ft.sum(mi[now][ind[now]]-1)-ft.sum(pl[now][ind[now]])+1;
        }
        ft.update(pl[now][ind[now]],-1);
        ft.update(mi[now][ind[now]],-1);
        s.erase(pl[now][ind[now]]);
        s.erase(mi[now][ind[now]]);
        ind[now]++;
    }
    return ret;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:46:13: warning: unused variable 'mini' [-Wunused-variable]
         int mini=1e9;
             ^~~~
shoes.cpp:44:9: warning: unused variable 'used' [-Wunused-variable]
     int used=0;
         ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 8 ms 4992 KB Output is correct
8 Correct 7 ms 4992 KB Output is correct
9 Correct 7 ms 4992 KB Output is correct
10 Correct 7 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 7 ms 4992 KB Output is correct
13 Correct 7 ms 5120 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 5120 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 7 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 7 ms 4992 KB Output is correct
22 Correct 7 ms 4992 KB Output is correct
23 Correct 7 ms 4992 KB Output is correct
24 Correct 8 ms 4992 KB Output is correct
25 Correct 7 ms 5120 KB Output is correct
26 Correct 7 ms 4992 KB Output is correct
27 Correct 7 ms 5120 KB Output is correct
28 Correct 7 ms 4992 KB Output is correct
29 Correct 7 ms 4992 KB Output is correct
30 Correct 7 ms 4992 KB Output is correct
31 Correct 8 ms 4992 KB Output is correct
32 Correct 7 ms 4992 KB Output is correct
33 Correct 7 ms 4992 KB Output is correct
34 Correct 7 ms 5120 KB Output is correct
35 Correct 7 ms 5120 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 5152 KB Output is correct
4 Correct 7 ms 5120 KB Output is correct
5 Correct 7 ms 4992 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 7 ms 4992 KB Output is correct
8 Correct 7 ms 4992 KB Output is correct
9 Correct 7 ms 4992 KB Output is correct
10 Correct 7 ms 4992 KB Output is correct
11 Correct 7 ms 5120 KB Output is correct
12 Correct 7 ms 5120 KB Output is correct
13 Correct 7 ms 4992 KB Output is correct
14 Correct 7 ms 4992 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 4992 KB Output is correct
17 Correct 7 ms 5120 KB Output is correct
18 Correct 8 ms 5120 KB Output is correct
19 Correct 8 ms 5120 KB Output is correct
20 Correct 16 ms 6272 KB Output is correct
21 Correct 20 ms 6272 KB Output is correct
22 Correct 116 ms 17692 KB Output is correct
23 Correct 106 ms 17516 KB Output is correct
24 Correct 119 ms 17772 KB Output is correct
25 Correct 114 ms 17516 KB Output is correct
26 Correct 115 ms 17516 KB Output is correct
27 Correct 105 ms 17516 KB Output is correct
28 Correct 114 ms 17520 KB Output is correct
29 Correct 116 ms 17644 KB Output is correct
30 Correct 116 ms 17516 KB Output is correct
31 Correct 118 ms 17668 KB Output is correct
32 Correct 114 ms 17520 KB Output is correct
33 Correct 116 ms 17648 KB Output is correct
34 Correct 114 ms 17520 KB Output is correct
35 Correct 8 ms 4992 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct
37 Correct 116 ms 17568 KB Output is correct
38 Correct 115 ms 17516 KB Output is correct
39 Correct 119 ms 17520 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 5120 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 147 ms 23416 KB Output is correct
6 Correct 138 ms 18620 KB Output is correct
7 Correct 150 ms 23416 KB Output is correct
8 Correct 114 ms 17544 KB Output is correct
9 Correct 151 ms 23416 KB Output is correct
10 Correct 156 ms 20472 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 8 ms 4992 KB Output is correct
8 Correct 7 ms 4992 KB Output is correct
9 Correct 7 ms 4992 KB Output is correct
10 Correct 7 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 7 ms 4992 KB Output is correct
13 Correct 7 ms 5120 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 5120 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 7 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 7 ms 4992 KB Output is correct
22 Correct 7 ms 4992 KB Output is correct
23 Correct 7 ms 4992 KB Output is correct
24 Correct 8 ms 4992 KB Output is correct
25 Correct 7 ms 5120 KB Output is correct
26 Correct 7 ms 4992 KB Output is correct
27 Correct 7 ms 5120 KB Output is correct
28 Correct 7 ms 4992 KB Output is correct
29 Correct 7 ms 4992 KB Output is correct
30 Correct 7 ms 4992 KB Output is correct
31 Correct 8 ms 4992 KB Output is correct
32 Correct 7 ms 4992 KB Output is correct
33 Correct 7 ms 4992 KB Output is correct
34 Correct 7 ms 5120 KB Output is correct
35 Correct 7 ms 5120 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct
37 Correct 7 ms 5120 KB Output is correct
38 Correct 7 ms 5120 KB Output is correct
39 Correct 7 ms 5120 KB Output is correct
40 Correct 8 ms 5120 KB Output is correct
41 Correct 8 ms 5248 KB Output is correct
42 Correct 8 ms 5248 KB Output is correct
43 Correct 9 ms 5248 KB Output is correct
44 Correct 8 ms 5248 KB Output is correct
45 Correct 8 ms 5248 KB Output is correct
46 Correct 8 ms 5248 KB Output is correct
47 Correct 8 ms 5248 KB Output is correct
48 Correct 8 ms 5120 KB Output is correct
49 Correct 8 ms 5120 KB Output is correct
50 Correct 8 ms 5120 KB Output is correct
51 Correct 8 ms 5120 KB Output is correct
52 Correct 8 ms 5248 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 8 ms 4992 KB Output is correct
8 Correct 7 ms 4992 KB Output is correct
9 Correct 7 ms 4992 KB Output is correct
10 Correct 7 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 7 ms 4992 KB Output is correct
13 Correct 7 ms 5120 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 5120 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 7 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 7 ms 4992 KB Output is correct
22 Correct 7 ms 4992 KB Output is correct
23 Correct 7 ms 4992 KB Output is correct
24 Correct 8 ms 4992 KB Output is correct
25 Correct 7 ms 5120 KB Output is correct
26 Correct 7 ms 4992 KB Output is correct
27 Correct 7 ms 5120 KB Output is correct
28 Correct 7 ms 4992 KB Output is correct
29 Correct 7 ms 4992 KB Output is correct
30 Correct 7 ms 4992 KB Output is correct
31 Correct 8 ms 4992 KB Output is correct
32 Correct 7 ms 4992 KB Output is correct
33 Correct 7 ms 4992 KB Output is correct
34 Correct 7 ms 5120 KB Output is correct
35 Correct 7 ms 5120 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct
37 Correct 7 ms 5152 KB Output is correct
38 Correct 7 ms 5120 KB Output is correct
39 Correct 7 ms 4992 KB Output is correct
40 Correct 7 ms 4992 KB Output is correct
41 Correct 7 ms 4992 KB Output is correct
42 Correct 7 ms 4992 KB Output is correct
43 Correct 7 ms 4992 KB Output is correct
44 Correct 7 ms 4992 KB Output is correct
45 Correct 7 ms 5120 KB Output is correct
46 Correct 7 ms 5120 KB Output is correct
47 Correct 7 ms 4992 KB Output is correct
48 Correct 7 ms 4992 KB Output is correct
49 Correct 7 ms 4992 KB Output is correct
50 Correct 7 ms 4992 KB Output is correct
51 Correct 7 ms 5120 KB Output is correct
52 Correct 8 ms 5120 KB Output is correct
53 Correct 8 ms 5120 KB Output is correct
54 Correct 16 ms 6272 KB Output is correct
55 Correct 20 ms 6272 KB Output is correct
56 Correct 116 ms 17692 KB Output is correct
57 Correct 106 ms 17516 KB Output is correct
58 Correct 119 ms 17772 KB Output is correct
59 Correct 114 ms 17516 KB Output is correct
60 Correct 115 ms 17516 KB Output is correct
61 Correct 105 ms 17516 KB Output is correct
62 Correct 114 ms 17520 KB Output is correct
63 Correct 116 ms 17644 KB Output is correct
64 Correct 116 ms 17516 KB Output is correct
65 Correct 118 ms 17668 KB Output is correct
66 Correct 114 ms 17520 KB Output is correct
67 Correct 116 ms 17648 KB Output is correct
68 Correct 114 ms 17520 KB Output is correct
69 Correct 8 ms 4992 KB Output is correct
70 Correct 7 ms 4992 KB Output is correct
71 Correct 116 ms 17568 KB Output is correct
72 Correct 115 ms 17516 KB Output is correct
73 Correct 119 ms 17520 KB Output is correct
74 Correct 7 ms 5120 KB Output is correct
75 Correct 7 ms 4992 KB Output is correct
76 Correct 7 ms 4992 KB Output is correct
77 Correct 7 ms 4992 KB Output is correct
78 Correct 147 ms 23416 KB Output is correct
79 Correct 138 ms 18620 KB Output is correct
80 Correct 150 ms 23416 KB Output is correct
81 Correct 114 ms 17544 KB Output is correct
82 Correct 151 ms 23416 KB Output is correct
83 Correct 156 ms 20472 KB Output is correct
84 Correct 7 ms 5120 KB Output is correct
85 Correct 7 ms 5120 KB Output is correct
86 Correct 7 ms 5120 KB Output is correct
87 Correct 8 ms 5120 KB Output is correct
88 Correct 8 ms 5248 KB Output is correct
89 Correct 8 ms 5248 KB Output is correct
90 Correct 9 ms 5248 KB Output is correct
91 Correct 8 ms 5248 KB Output is correct
92 Correct 8 ms 5248 KB Output is correct
93 Correct 8 ms 5248 KB Output is correct
94 Correct 8 ms 5248 KB Output is correct
95 Correct 8 ms 5120 KB Output is correct
96 Correct 8 ms 5120 KB Output is correct
97 Correct 8 ms 5120 KB Output is correct
98 Correct 8 ms 5120 KB Output is correct
99 Correct 8 ms 5248 KB Output is correct
100 Correct 8 ms 5248 KB Output is correct
101 Correct 20 ms 6912 KB Output is correct
102 Correct 21 ms 6528 KB Output is correct
103 Correct 219 ms 23772 KB Output is correct
104 Correct 160 ms 23716 KB Output is correct
105 Correct 171 ms 20984 KB Output is correct
106 Correct 155 ms 23672 KB Output is correct
107 Correct 144 ms 18936 KB Output is correct
108 Correct 144 ms 19324 KB Output is correct
109 Correct 119 ms 17932 KB Output is correct
110 Correct 123 ms 17772 KB Output is correct
111 Correct 155 ms 22904 KB Output is correct
112 Correct 199 ms 22392 KB Output is correct
113 Correct 179 ms 18936 KB Output is correct
114 Correct 152 ms 23672 KB Output is correct
115 Correct 148 ms 23672 KB Output is correct