oj.uz

Submission #533249

# Submission time Handle Problem Language Result Execution time Memory
533249 2022-03-05T07:51:51 Z makanhulia Arranging Shoes (IOI19_shoes) C++17
100 / 100
 137 ms 26728 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define fs first
#define sc second
typedef long long ll;
using namespace std;

vector<long long> kiri[200005], kanan[200005];
vector<pair<long long,long long> > swaps;
long long tree[4 * 200005];

void upd(long long idx, long long l, long long r, long long titik, long long val){
    if(titik > r || titik < l){
        return;
    }

    if(l == r){
        tree[idx] += val;
        return;
    }

    upd(2 * idx, l, (l + r)/2, titik, val);
    upd(2 * idx + 1, (l + r)/2 + 1, r, titik, val);
    tree[idx] = tree[2 * idx] + tree[2 * idx + 1];
}

long long cari(long long idx, long long l, long long r, long long kiri, long long kanan){
    if(kiri > r || kanan < l){
        return 0;
    }

    if(l >= kiri && r <= kanan){
        return tree[idx];
    }

    long long satu = cari(2 * idx, l, (l + r)/2, kiri, kanan);
    long long dua = cari(2 * idx + 1, (l + r)/2 + 1, r, kiri, kanan);
    return satu + dua;
}

long long count_swaps(vector<int> s) {
    long long n = s.size() / 2;
    for(long long i = 0; i < s.size(); i++){
        if(s[i] < 0){
            kiri[-s[i]].pb(i + 1);
        }else{
            kanan[s[i]].pb(i + 1);
        }    
    }

    long long ans = 0;
    for(long long i = 1; i < s.size() + 5; i++){
        for(long long j = 0; j < kiri[i].size(); j++){
            long long lef = kiri[i][j];
            long long rig = kanan[i][j];
            if(lef > rig){
                ans++;
                swap(lef, rig);
            }
            // cout << lef << " " << rig << " here\n";
            swaps.pb(mp(lef, rig));
        }
    }

    sort(swaps.begin(), swaps.end());
    memset(tree, 0, sizeof(tree));
    for(long long i = 0; i < swaps.size(); i++){
        long long l = swaps[i].first;
        long long r = swaps[i].second;
        long long ans_now = (r - l - 1) - cari(1, 1, 200000, l, r);
        ans += ans_now;
        upd(1, 1, 200000, l, 1);
        upd(1, 1, 200000, r, 1);
    }
    return ans;
}

// int main(){
//     int n; cin >> n;
//     vector<int> bawa;
//     for(int i = 0; i < n; i++){
//         int x; cin >> x;
//         bawa.pb(x);
//     }
//     cout << count_swaps(bawa) << "\n";
// }

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:45:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |     for(long long i = 0; i < s.size(); i++){
      |                          ~~^~~~~~~~~~
shoes.cpp:54:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(long long i = 1; i < s.size() + 5; i++){
      |                          ~~^~~~~~~~~~~~~~
shoes.cpp:55:32: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for(long long j = 0; j < kiri[i].size(); j++){
      |                              ~~^~~~~~~~~~~~~~~~
shoes.cpp:69:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |     for(long long i = 0; i < swaps.size(); i++){
      |                          ~~^~~~~~~~~~~~~~
shoes.cpp:44:15: warning: unused variable 'n' [-Wunused-variable]
   44 |     long long n = s.size() / 2;
      |               ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 9 ms 15948 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 9 ms 15948 KB Output is correct
3 Correct 9 ms 15948 KB Output is correct
4 Correct 8 ms 15948 KB Output is correct
5 Correct 9 ms 15848 KB Output is correct
6 Correct 9 ms 15948 KB Output is correct
7 Correct 10 ms 15844 KB Output is correct
8 Correct 9 ms 15896 KB Output is correct
9 Correct 11 ms 15844 KB Output is correct
10 Correct 10 ms 15840 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 10 ms 15920 KB Output is correct
13 Correct 8 ms 15844 KB Output is correct
14 Correct 8 ms 15948 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15848 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 8 ms 15944 KB Output is correct
19 Correct 8 ms 15948 KB Output is correct
20 Correct 8 ms 15948 KB Output is correct
21 Correct 9 ms 15868 KB Output is correct
22 Correct 11 ms 15948 KB Output is correct
23 Correct 9 ms 15840 KB Output is correct
24 Correct 8 ms 15844 KB Output is correct
25 Correct 8 ms 15948 KB Output is correct
26 Correct 9 ms 15856 KB Output is correct
27 Correct 9 ms 15848 KB Output is correct
28 Correct 8 ms 15948 KB Output is correct
29 Correct 8 ms 15872 KB Output is correct
30 Correct 8 ms 15948 KB Output is correct
31 Correct 9 ms 15948 KB Output is correct
32 Correct 9 ms 15840 KB Output is correct
33 Correct 8 ms 15948 KB Output is correct
34 Correct 10 ms 15948 KB Output is correct
35 Correct 9 ms 15844 KB Output is correct
36 Correct 8 ms 15840 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 9 ms 15948 KB Output is correct
3 Correct 11 ms 15884 KB Output is correct
4 Correct 11 ms 15948 KB Output is correct
5 Correct 8 ms 15948 KB Output is correct
6 Correct 11 ms 15840 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 10 ms 15924 KB Output is correct
10 Correct 9 ms 15948 KB Output is correct
11 Correct 8 ms 15948 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 9 ms 15948 KB Output is correct
14 Correct 9 ms 15948 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 10 ms 15988 KB Output is correct
19 Correct 9 ms 15948 KB Output is correct
20 Correct 17 ms 16720 KB Output is correct
21 Correct 17 ms 16660 KB Output is correct
22 Correct 92 ms 21932 KB Output is correct
23 Correct 85 ms 22056 KB Output is correct
24 Correct 79 ms 22008 KB Output is correct
25 Correct 85 ms 21812 KB Output is correct
26 Correct 108 ms 21960 KB Output is correct
27 Correct 79 ms 21824 KB Output is correct
28 Correct 92 ms 21972 KB Output is correct
29 Correct 100 ms 22056 KB Output is correct
30 Correct 89 ms 21960 KB Output is correct
31 Correct 98 ms 22120 KB Output is correct
32 Correct 82 ms 21964 KB Output is correct
33 Correct 102 ms 21864 KB Output is correct
34 Correct 120 ms 22044 KB Output is correct
35 Correct 9 ms 15832 KB Output is correct
36 Correct 11 ms 15844 KB Output is correct
37 Correct 80 ms 21972 KB Output is correct
38 Correct 90 ms 21964 KB Output is correct
39 Correct 85 ms 21964 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 8 ms 15948 KB Output is correct
3 Correct 8 ms 15948 KB Output is correct
4 Correct 9 ms 15948 KB Output is correct
5 Correct 114 ms 26712 KB Output is correct
6 Correct 119 ms 23048 KB Output is correct
7 Correct 116 ms 26676 KB Output is correct
8 Correct 86 ms 22548 KB Output is correct
9 Correct 116 ms 26696 KB Output is correct
10 Correct 119 ms 24020 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 9 ms 15948 KB Output is correct
3 Correct 9 ms 15948 KB Output is correct
4 Correct 8 ms 15948 KB Output is correct
5 Correct 9 ms 15848 KB Output is correct
6 Correct 9 ms 15948 KB Output is correct
7 Correct 10 ms 15844 KB Output is correct
8 Correct 9 ms 15896 KB Output is correct
9 Correct 11 ms 15844 KB Output is correct
10 Correct 10 ms 15840 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 10 ms 15920 KB Output is correct
13 Correct 8 ms 15844 KB Output is correct
14 Correct 8 ms 15948 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15848 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 8 ms 15944 KB Output is correct
19 Correct 8 ms 15948 KB Output is correct
20 Correct 8 ms 15948 KB Output is correct
21 Correct 9 ms 15868 KB Output is correct
22 Correct 11 ms 15948 KB Output is correct
23 Correct 9 ms 15840 KB Output is correct
24 Correct 8 ms 15844 KB Output is correct
25 Correct 8 ms 15948 KB Output is correct
26 Correct 9 ms 15856 KB Output is correct
27 Correct 9 ms 15848 KB Output is correct
28 Correct 8 ms 15948 KB Output is correct
29 Correct 8 ms 15872 KB Output is correct
30 Correct 8 ms 15948 KB Output is correct
31 Correct 9 ms 15948 KB Output is correct
32 Correct 9 ms 15840 KB Output is correct
33 Correct 8 ms 15948 KB Output is correct
34 Correct 10 ms 15948 KB Output is correct
35 Correct 9 ms 15844 KB Output is correct
36 Correct 8 ms 15840 KB Output is correct
37 Correct 8 ms 15948 KB Output is correct
38 Correct 8 ms 15948 KB Output is correct
39 Correct 8 ms 15896 KB Output is correct
40 Correct 7 ms 15948 KB Output is correct
41 Correct 9 ms 15948 KB Output is correct
42 Correct 9 ms 15948 KB Output is correct
43 Correct 10 ms 16040 KB Output is correct
44 Correct 13 ms 16040 KB Output is correct
45 Correct 9 ms 15948 KB Output is correct
46 Correct 9 ms 15948 KB Output is correct
47 Correct 9 ms 15944 KB Output is correct
48 Correct 12 ms 15984 KB Output is correct
49 Correct 11 ms 15948 KB Output is correct
50 Correct 10 ms 15948 KB Output is correct
51 Correct 9 ms 15948 KB Output is correct
52 Correct 9 ms 15948 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 9 ms 15948 KB Output is correct
3 Correct 9 ms 15948 KB Output is correct
4 Correct 8 ms 15948 KB Output is correct
5 Correct 9 ms 15848 KB Output is correct
6 Correct 9 ms 15948 KB Output is correct
7 Correct 10 ms 15844 KB Output is correct
8 Correct 9 ms 15896 KB Output is correct
9 Correct 11 ms 15844 KB Output is correct
10 Correct 10 ms 15840 KB Output is correct
11 Correct 9 ms 15948 KB Output is correct
12 Correct 10 ms 15920 KB Output is correct
13 Correct 8 ms 15844 KB Output is correct
14 Correct 8 ms 15948 KB Output is correct
15 Correct 8 ms 15948 KB Output is correct
16 Correct 8 ms 15848 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 8 ms 15944 KB Output is correct
19 Correct 8 ms 15948 KB Output is correct
20 Correct 8 ms 15948 KB Output is correct
21 Correct 9 ms 15868 KB Output is correct
22 Correct 11 ms 15948 KB Output is correct
23 Correct 9 ms 15840 KB Output is correct
24 Correct 8 ms 15844 KB Output is correct
25 Correct 8 ms 15948 KB Output is correct
26 Correct 9 ms 15856 KB Output is correct
27 Correct 9 ms 15848 KB Output is correct
28 Correct 8 ms 15948 KB Output is correct
29 Correct 8 ms 15872 KB Output is correct
30 Correct 8 ms 15948 KB Output is correct
31 Correct 9 ms 15948 KB Output is correct
32 Correct 9 ms 15840 KB Output is correct
33 Correct 8 ms 15948 KB Output is correct
34 Correct 10 ms 15948 KB Output is correct
35 Correct 9 ms 15844 KB Output is correct
36 Correct 8 ms 15840 KB Output is correct
37 Correct 11 ms 15884 KB Output is correct
38 Correct 11 ms 15948 KB Output is correct
39 Correct 8 ms 15948 KB Output is correct
40 Correct 11 ms 15840 KB Output is correct
41 Correct 8 ms 15948 KB Output is correct
42 Correct 8 ms 15948 KB Output is correct
43 Correct 10 ms 15924 KB Output is correct
44 Correct 9 ms 15948 KB Output is correct
45 Correct 8 ms 15948 KB Output is correct
46 Correct 8 ms 15948 KB Output is correct
47 Correct 9 ms 15948 KB Output is correct
48 Correct 9 ms 15948 KB Output is correct
49 Correct 8 ms 15948 KB Output is correct
50 Correct 8 ms 15948 KB Output is correct
51 Correct 8 ms 15948 KB Output is correct
52 Correct 10 ms 15988 KB Output is correct
53 Correct 9 ms 15948 KB Output is correct
54 Correct 17 ms 16720 KB Output is correct
55 Correct 17 ms 16660 KB Output is correct
56 Correct 92 ms 21932 KB Output is correct
57 Correct 85 ms 22056 KB Output is correct
58 Correct 79 ms 22008 KB Output is correct
59 Correct 85 ms 21812 KB Output is correct
60 Correct 108 ms 21960 KB Output is correct
61 Correct 79 ms 21824 KB Output is correct
62 Correct 92 ms 21972 KB Output is correct
63 Correct 100 ms 22056 KB Output is correct
64 Correct 89 ms 21960 KB Output is correct
65 Correct 98 ms 22120 KB Output is correct
66 Correct 82 ms 21964 KB Output is correct
67 Correct 102 ms 21864 KB Output is correct
68 Correct 120 ms 22044 KB Output is correct
69 Correct 9 ms 15832 KB Output is correct
70 Correct 11 ms 15844 KB Output is correct
71 Correct 80 ms 21972 KB Output is correct
72 Correct 90 ms 21964 KB Output is correct
73 Correct 85 ms 21964 KB Output is correct
74 Correct 8 ms 15948 KB Output is correct
75 Correct 8 ms 15948 KB Output is correct
76 Correct 8 ms 15948 KB Output is correct
77 Correct 9 ms 15948 KB Output is correct
78 Correct 114 ms 26712 KB Output is correct
79 Correct 119 ms 23048 KB Output is correct
80 Correct 116 ms 26676 KB Output is correct
81 Correct 86 ms 22548 KB Output is correct
82 Correct 116 ms 26696 KB Output is correct
83 Correct 119 ms 24020 KB Output is correct
84 Correct 8 ms 15948 KB Output is correct
85 Correct 8 ms 15948 KB Output is correct
86 Correct 8 ms 15896 KB Output is correct
87 Correct 7 ms 15948 KB Output is correct
88 Correct 9 ms 15948 KB Output is correct
89 Correct 9 ms 15948 KB Output is correct
90 Correct 10 ms 16040 KB Output is correct
91 Correct 13 ms 16040 KB Output is correct
92 Correct 9 ms 15948 KB Output is correct
93 Correct 9 ms 15948 KB Output is correct
94 Correct 9 ms 15944 KB Output is correct
95 Correct 12 ms 15984 KB Output is correct
96 Correct 11 ms 15948 KB Output is correct
97 Correct 10 ms 15948 KB Output is correct
98 Correct 9 ms 15948 KB Output is correct
99 Correct 9 ms 15948 KB Output is correct
100 Correct 9 ms 15980 KB Output is correct
101 Correct 21 ms 17056 KB Output is correct
102 Correct 19 ms 16748 KB Output is correct
103 Correct 137 ms 26704 KB Output is correct
104 Correct 125 ms 26712 KB Output is correct
105 Correct 129 ms 24324 KB Output is correct
106 Correct 106 ms 26708 KB Output is correct
107 Correct 106 ms 23144 KB Output is correct
108 Correct 99 ms 23348 KB Output is correct
109 Correct 112 ms 23088 KB Output is correct
110 Correct 82 ms 21960 KB Output is correct
111 Correct 122 ms 25908 KB Output is correct
112 Correct 128 ms 25268 KB Output is correct
113 Correct 115 ms 23096 KB Output is correct
114 Correct 103 ms 26720 KB Output is correct
115 Correct 114 ms 26728 KB Output is correct