oj.uz

Submission #989801

# Submission time Handle Problem Language Result Execution time Memory
989801 2024-05-28T19:58:38 Z mateuszwes Arranging Shoes (IOI19_shoes) C++17
100 / 100
 50 ms 21840 KB 
#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
typedef long long ll;
typedef unsigned long long ull;
using namespace std;

#include "shoes.h"

constexpr int base = 1<<19;
constexpr int debug = 0;
constexpr ll mini = -1e18-7;
constexpr int N = 3e5+7;
constexpr int M = 1e5+7;

vector<int> shoe_index[N];
int ind[N];
bool istaken[N];
ll tree[2*base+7];              //delta do indeksu

void add(int a, int b, ll val){
    a += base-1;
    b += base+1;
    
    while(a/2 != b/2){
        if(!(a&1)){
            tree[a+1] += val;
        }
        a /= 2;
        if(b&1){
            tree[b-1] += val;
        }
        b /= 2;
    }
}

ll query(int v){
    ll ans = 0;
    v += base;
    while(v > 0){
        ans += tree[v];
        v /= 2;
    }
    
    return ans;
}

ll count_swaps(vector<int> s){
    ll ans = 0;
    
    for(int i = 0; i < s.size(); i++){
        shoe_index[s[i]+M].pb(i);
    }
    
    for(int i = 0; i < s.size(); i++){
        if(istaken[i]) continue;
        istaken[i] = 1;
        int index = shoe_index[-s[i]+M][ind[-s[i]+M]];
        istaken[index] = 1;
        
        if(s[i] < 0) ans--;
        
        ans += (index+query(index)-(i+query(i)));
        if(debug) cout << i << ' ' << index << ' ' << ans << ' ' << query(i) << ' ' << query(index) << endl;
        
        add(index, s.size(), -1);
        
        ind[s[i]+M]++;
        ind[-s[i]+M]++;
        
    }
    return ans;
}

Compilation message

shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |     for(int i = 0; i < s.size(); i++){
      |                    ~~^~~~~~~~~~
shoes.cpp:56:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for(int i = 0; i < s.size(); i++){
      |                    ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8536 KB Output is correct
2 Correct 2 ms 8792 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8536 KB Output is correct
2 Correct 2 ms 8792 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 1 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 1 ms 8796 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8620 KB Output is correct
12 Correct 1 ms 8796 KB Output is correct
13 Correct 1 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 1 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8796 KB Output is correct
19 Correct 1 ms 8796 KB Output is correct
20 Correct 1 ms 8796 KB Output is correct
21 Correct 1 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 1 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 2 ms 8796 KB Output is correct
26 Correct 1 ms 8796 KB Output is correct
27 Correct 1 ms 8796 KB Output is correct
28 Correct 2 ms 8796 KB Output is correct
29 Correct 1 ms 8796 KB Output is correct
30 Correct 2 ms 8800 KB Output is correct
31 Correct 2 ms 8792 KB Output is correct
32 Correct 1 ms 8796 KB Output is correct
33 Correct 1 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8632 KB Output is correct
36 Correct 2 ms 8796 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8536 KB Output is correct
2 Correct 2 ms 8792 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 1 ms 8796 KB Output is correct
6 Correct 1 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 2 ms 8796 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 1 ms 8796 KB Output is correct
11 Correct 1 ms 8772 KB Output is correct
12 Correct 2 ms 8792 KB Output is correct
13 Correct 2 ms 8796 KB Output is correct
14 Correct 1 ms 8796 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 1 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 2 ms 8796 KB Output is correct
19 Correct 2 ms 8796 KB Output is correct
20 Correct 4 ms 9564 KB Output is correct
21 Correct 4 ms 9564 KB Output is correct
22 Correct 26 ms 16492 KB Output is correct
23 Correct 28 ms 16584 KB Output is correct
24 Correct 26 ms 16592 KB Output is correct
25 Correct 24 ms 13912 KB Output is correct
26 Correct 26 ms 16584 KB Output is correct
27 Correct 27 ms 16356 KB Output is correct
28 Correct 25 ms 14160 KB Output is correct
29 Correct 25 ms 14164 KB Output is correct
30 Correct 25 ms 14156 KB Output is correct
31 Correct 26 ms 16468 KB Output is correct
32 Correct 25 ms 14164 KB Output is correct
33 Correct 24 ms 13908 KB Output is correct
34 Correct 25 ms 14156 KB Output is correct
35 Correct 2 ms 8796 KB Output is correct
36 Correct 2 ms 8796 KB Output is correct
37 Correct 26 ms 14156 KB Output is correct
38 Correct 25 ms 14160 KB Output is correct
39 Correct 25 ms 14164 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 1 ms 8796 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 2 ms 8796 KB Output is correct
5 Correct 36 ms 19416 KB Output is correct
6 Correct 31 ms 14672 KB Output is correct
7 Correct 43 ms 19548 KB Output is correct
8 Correct 25 ms 14332 KB Output is correct
9 Correct 36 ms 19400 KB Output is correct
10 Correct 36 ms 16548 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8536 KB Output is correct
2 Correct 2 ms 8792 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 1 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 1 ms 8796 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8620 KB Output is correct
12 Correct 1 ms 8796 KB Output is correct
13 Correct 1 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 1 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8796 KB Output is correct
19 Correct 1 ms 8796 KB Output is correct
20 Correct 1 ms 8796 KB Output is correct
21 Correct 1 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 1 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 2 ms 8796 KB Output is correct
26 Correct 1 ms 8796 KB Output is correct
27 Correct 1 ms 8796 KB Output is correct
28 Correct 2 ms 8796 KB Output is correct
29 Correct 1 ms 8796 KB Output is correct
30 Correct 2 ms 8800 KB Output is correct
31 Correct 2 ms 8792 KB Output is correct
32 Correct 1 ms 8796 KB Output is correct
33 Correct 1 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8632 KB Output is correct
36 Correct 2 ms 8796 KB Output is correct
37 Correct 2 ms 8796 KB Output is correct
38 Correct 1 ms 8796 KB Output is correct
39 Correct 2 ms 8796 KB Output is correct
40 Correct 2 ms 8796 KB Output is correct
41 Correct 2 ms 8796 KB Output is correct
42 Correct 2 ms 8796 KB Output is correct
43 Correct 2 ms 8792 KB Output is correct
44 Correct 2 ms 8796 KB Output is correct
45 Correct 2 ms 8796 KB Output is correct
46 Correct 2 ms 8796 KB Output is correct
47 Correct 2 ms 8792 KB Output is correct
48 Correct 2 ms 8796 KB Output is correct
49 Correct 2 ms 8796 KB Output is correct
50 Correct 2 ms 8796 KB Output is correct
51 Correct 2 ms 8796 KB Output is correct
52 Correct 2 ms 8796 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8536 KB Output is correct
2 Correct 2 ms 8792 KB Output is correct
3 Correct 1 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 2 ms 8796 KB Output is correct
6 Correct 1 ms 8796 KB Output is correct
7 Correct 2 ms 8796 KB Output is correct
8 Correct 1 ms 8796 KB Output is correct
9 Correct 1 ms 8796 KB Output is correct
10 Correct 2 ms 8796 KB Output is correct
11 Correct 2 ms 8620 KB Output is correct
12 Correct 1 ms 8796 KB Output is correct
13 Correct 1 ms 8796 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Correct 1 ms 8796 KB Output is correct
16 Correct 1 ms 8796 KB Output is correct
17 Correct 1 ms 8796 KB Output is correct
18 Correct 1 ms 8796 KB Output is correct
19 Correct 1 ms 8796 KB Output is correct
20 Correct 1 ms 8796 KB Output is correct
21 Correct 1 ms 8796 KB Output is correct
22 Correct 2 ms 8796 KB Output is correct
23 Correct 1 ms 8796 KB Output is correct
24 Correct 2 ms 8792 KB Output is correct
25 Correct 2 ms 8796 KB Output is correct
26 Correct 1 ms 8796 KB Output is correct
27 Correct 1 ms 8796 KB Output is correct
28 Correct 2 ms 8796 KB Output is correct
29 Correct 1 ms 8796 KB Output is correct
30 Correct 2 ms 8800 KB Output is correct
31 Correct 2 ms 8792 KB Output is correct
32 Correct 1 ms 8796 KB Output is correct
33 Correct 1 ms 8796 KB Output is correct
34 Correct 2 ms 8796 KB Output is correct
35 Correct 2 ms 8632 KB Output is correct
36 Correct 2 ms 8796 KB Output is correct
37 Correct 1 ms 8796 KB Output is correct
38 Correct 1 ms 8796 KB Output is correct
39 Correct 1 ms 8796 KB Output is correct
40 Correct 1 ms 8796 KB Output is correct
41 Correct 2 ms 8796 KB Output is correct
42 Correct 2 ms 8796 KB Output is correct
43 Correct 1 ms 8796 KB Output is correct
44 Correct 1 ms 8796 KB Output is correct
45 Correct 1 ms 8772 KB Output is correct
46 Correct 2 ms 8792 KB Output is correct
47 Correct 2 ms 8796 KB Output is correct
48 Correct 1 ms 8796 KB Output is correct
49 Correct 1 ms 8796 KB Output is correct
50 Correct 1 ms 8796 KB Output is correct
51 Correct 1 ms 8796 KB Output is correct
52 Correct 2 ms 8796 KB Output is correct
53 Correct 2 ms 8796 KB Output is correct
54 Correct 4 ms 9564 KB Output is correct
55 Correct 4 ms 9564 KB Output is correct
56 Correct 26 ms 16492 KB Output is correct
57 Correct 28 ms 16584 KB Output is correct
58 Correct 26 ms 16592 KB Output is correct
59 Correct 24 ms 13912 KB Output is correct
60 Correct 26 ms 16584 KB Output is correct
61 Correct 27 ms 16356 KB Output is correct
62 Correct 25 ms 14160 KB Output is correct
63 Correct 25 ms 14164 KB Output is correct
64 Correct 25 ms 14156 KB Output is correct
65 Correct 26 ms 16468 KB Output is correct
66 Correct 25 ms 14164 KB Output is correct
67 Correct 24 ms 13908 KB Output is correct
68 Correct 25 ms 14156 KB Output is correct
69 Correct 2 ms 8796 KB Output is correct
70 Correct 2 ms 8796 KB Output is correct
71 Correct 26 ms 14156 KB Output is correct
72 Correct 25 ms 14160 KB Output is correct
73 Correct 25 ms 14164 KB Output is correct
74 Correct 2 ms 8792 KB Output is correct
75 Correct 1 ms 8796 KB Output is correct
76 Correct 1 ms 8796 KB Output is correct
77 Correct 2 ms 8796 KB Output is correct
78 Correct 36 ms 19416 KB Output is correct
79 Correct 31 ms 14672 KB Output is correct
80 Correct 43 ms 19548 KB Output is correct
81 Correct 25 ms 14332 KB Output is correct
82 Correct 36 ms 19400 KB Output is correct
83 Correct 36 ms 16548 KB Output is correct
84 Correct 2 ms 8796 KB Output is correct
85 Correct 1 ms 8796 KB Output is correct
86 Correct 2 ms 8796 KB Output is correct
87 Correct 2 ms 8796 KB Output is correct
88 Correct 2 ms 8796 KB Output is correct
89 Correct 2 ms 8796 KB Output is correct
90 Correct 2 ms 8792 KB Output is correct
91 Correct 2 ms 8796 KB Output is correct
92 Correct 2 ms 8796 KB Output is correct
93 Correct 2 ms 8796 KB Output is correct
94 Correct 2 ms 8792 KB Output is correct
95 Correct 2 ms 8796 KB Output is correct
96 Correct 2 ms 8796 KB Output is correct
97 Correct 2 ms 8796 KB Output is correct
98 Correct 2 ms 8796 KB Output is correct
99 Correct 2 ms 8796 KB Output is correct
100 Correct 2 ms 8796 KB Output is correct
101 Correct 5 ms 9820 KB Output is correct
102 Correct 5 ms 9564 KB Output is correct
103 Correct 50 ms 21116 KB Output is correct
104 Correct 37 ms 21840 KB Output is correct
105 Correct 42 ms 18956 KB Output is correct
106 Correct 42 ms 19536 KB Output is correct
107 Correct 34 ms 16972 KB Output is correct
108 Correct 34 ms 17492 KB Output is correct
109 Correct 25 ms 14416 KB Output is correct
110 Correct 24 ms 14156 KB Output is correct
111 Correct 39 ms 18836 KB Output is correct
112 Correct 45 ms 19804 KB Output is correct
113 Correct 44 ms 14904 KB Output is correct
114 Correct 36 ms 19540 KB Output is correct
115 Correct 38 ms 19580 KB Output is correct