oj.uz

Submission #296607

# Submission time Handle Problem Language Result Execution time Memory
296607 2020-09-10T17:08:51 Z zoooma13 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 450 ms 25976 KB 
#include "bits/stdc++.h"
#include "shoes.h"
using namespace std;

vector <int> bit;
void upd(int idx){
    for(int i=idx+5; i<bit.size(); i+=(i&-i))
        bit[i] += 1;
}
int ask(int idx){
    int ret = 0;
    for(int i=idx+5; i; i-=(i&-i))
        ret += bit[i];
    return ret;
}
int qry(int l ,int r){
    return r < l? 0 : r-l+1 - ask(r)+ask(l-1);
}

long long count_swaps(vector<int> s) {
    bit.resize((int)s.size() + 13);

    map <int ,vector<int>> mp;
    for(int i=(int)s.size()-1; ~i; i--)
        mp[s[i]].push_back(i);

    long long ans = 0;
    for(int i=0; i<s.size(); i++) if(qry(i ,i)){
        int x = s[i]; mp[x].pop_back();
        int y_idx = mp[-x].back(); mp[-x].pop_back();
        upd(i) ,upd(y_idx);
        ans += qry(i+1 ,y_idx-1)+(x > 0);
    }
    return ans;
}

Compilation message

shoes.cpp: In function 'void upd(int)':
shoes.cpp:7:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i=idx+5; i<bit.size(); i+=(i&-i))
      |                      ~^~~~~~~~~~~
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i=0; i<s.size(); i++) if(qry(i ,i)){
      |                  ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 0 ms 256 KB Output is correct
24 Correct 0 ms 256 KB Output is correct
25 Correct 0 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 0 ms 256 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 5 ms 800 KB Output is correct
21 Correct 5 ms 640 KB Output is correct
22 Correct 48 ms 3592 KB Output is correct
23 Correct 42 ms 3708 KB Output is correct
24 Correct 46 ms 3608 KB Output is correct
25 Correct 41 ms 3832 KB Output is correct
26 Correct 47 ms 4856 KB Output is correct
27 Correct 40 ms 4724 KB Output is correct
28 Correct 51 ms 5104 KB Output is correct
29 Correct 45 ms 5104 KB Output is correct
30 Correct 45 ms 5232 KB Output is correct
31 Correct 49 ms 5000 KB Output is correct
32 Correct 43 ms 5104 KB Output is correct
33 Correct 43 ms 4848 KB Output is correct
34 Correct 44 ms 5104 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 45 ms 5104 KB Output is correct
38 Correct 44 ms 5104 KB Output is correct
39 Correct 44 ms 5112 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 372 ms 24696 KB Output is correct
6 Correct 135 ms 6904 KB Output is correct
7 Correct 376 ms 25848 KB Output is correct
8 Correct 48 ms 4920 KB Output is correct
9 Correct 380 ms 25932 KB Output is correct
10 Correct 275 ms 14968 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 0 ms 256 KB Output is correct
24 Correct 0 ms 256 KB Output is correct
25 Correct 0 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 0 ms 256 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 1 ms 288 KB Output is correct
38 Correct 0 ms 256 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 2 ms 512 KB Output is correct
42 Correct 2 ms 512 KB Output is correct
43 Correct 2 ms 512 KB Output is correct
44 Correct 2 ms 512 KB Output is correct
45 Correct 2 ms 512 KB Output is correct
46 Correct 2 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 2 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 2 ms 512 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 0 ms 256 KB Output is correct
24 Correct 0 ms 256 KB Output is correct
25 Correct 0 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 0 ms 256 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 0 ms 256 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 0 ms 256 KB Output is correct
40 Correct 0 ms 256 KB Output is correct
41 Correct 0 ms 256 KB Output is correct
42 Correct 0 ms 256 KB Output is correct
43 Correct 0 ms 256 KB Output is correct
44 Correct 0 ms 256 KB Output is correct
45 Correct 0 ms 256 KB Output is correct
46 Correct 0 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 0 ms 256 KB Output is correct
49 Correct 1 ms 256 KB Output is correct
50 Correct 1 ms 256 KB Output is correct
51 Correct 1 ms 256 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 5 ms 800 KB Output is correct
55 Correct 5 ms 640 KB Output is correct
56 Correct 48 ms 3592 KB Output is correct
57 Correct 42 ms 3708 KB Output is correct
58 Correct 46 ms 3608 KB Output is correct
59 Correct 41 ms 3832 KB Output is correct
60 Correct 47 ms 4856 KB Output is correct
61 Correct 40 ms 4724 KB Output is correct
62 Correct 51 ms 5104 KB Output is correct
63 Correct 45 ms 5104 KB Output is correct
64 Correct 45 ms 5232 KB Output is correct
65 Correct 49 ms 5000 KB Output is correct
66 Correct 43 ms 5104 KB Output is correct
67 Correct 43 ms 4848 KB Output is correct
68 Correct 44 ms 5104 KB Output is correct
69 Correct 1 ms 256 KB Output is correct
70 Correct 0 ms 256 KB Output is correct
71 Correct 45 ms 5104 KB Output is correct
72 Correct 44 ms 5104 KB Output is correct
73 Correct 44 ms 5112 KB Output is correct
74 Correct 0 ms 256 KB Output is correct
75 Correct 0 ms 288 KB Output is correct
76 Correct 0 ms 256 KB Output is correct
77 Correct 0 ms 256 KB Output is correct
78 Correct 372 ms 24696 KB Output is correct
79 Correct 135 ms 6904 KB Output is correct
80 Correct 376 ms 25848 KB Output is correct
81 Correct 48 ms 4920 KB Output is correct
82 Correct 380 ms 25932 KB Output is correct
83 Correct 275 ms 14968 KB Output is correct
84 Correct 1 ms 288 KB Output is correct
85 Correct 0 ms 256 KB Output is correct
86 Correct 1 ms 384 KB Output is correct
87 Correct 1 ms 384 KB Output is correct
88 Correct 2 ms 512 KB Output is correct
89 Correct 2 ms 512 KB Output is correct
90 Correct 2 ms 512 KB Output is correct
91 Correct 2 ms 512 KB Output is correct
92 Correct 2 ms 512 KB Output is correct
93 Correct 2 ms 384 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 2 ms 384 KB Output is correct
96 Correct 1 ms 384 KB Output is correct
97 Correct 1 ms 384 KB Output is correct
98 Correct 1 ms 384 KB Output is correct
99 Correct 2 ms 512 KB Output is correct
100 Correct 2 ms 512 KB Output is correct
101 Correct 18 ms 2560 KB Output is correct
102 Correct 12 ms 1152 KB Output is correct
103 Correct 450 ms 25848 KB Output is correct
104 Correct 347 ms 25848 KB Output is correct
105 Correct 329 ms 16376 KB Output is correct
106 Correct 378 ms 25848 KB Output is correct
107 Correct 145 ms 7288 KB Output is correct
108 Correct 158 ms 9336 KB Output is correct
109 Correct 45 ms 5104 KB Output is correct
110 Correct 45 ms 5104 KB Output is correct
111 Correct 354 ms 23420 KB Output is correct
112 Correct 394 ms 21112 KB Output is correct
113 Correct 144 ms 7416 KB Output is correct
114 Correct 373 ms 25976 KB Output is correct
115 Correct 378 ms 25848 KB Output is correct