oj.uz

Submission #985901

# Submission time Handle Problem Language Result Execution time Memory
985901 2024-05-19T09:30:48 Z LucaIlie Arranging Shoes (IOI19_shoes) C++17
100 / 100
 89 ms 21764 KB 
#include "shoes.h"
#include <iostream>
#include <vector>
using namespace std;

#define nmax 200001
int v[nmax];
vector <int> fst[nmax], fdr[nmax];
int n;
int aint[4 * nmax];


void afiseaza( int node, int l, int r ) {
    ///cout << node << " " << l << " " << r << "   " << aint[node] << "\n";
    if( l == r )
        return;
    afiseaza( 2 * node, l, (l + r) / 2 );
    afiseaza( 2 * node + 1, (l + r) / 2 + 1, r );
}

int query( int node, int l, int r, int ql, int qr ) {
    if( r < ql || qr < l )
        return 0;
    if( ql <= l && r <= qr )
        return aint[node];
    return query( 2 * node, l, (l + r) / 2, ql, qr ) + query( 2 * node + 1, (l + r) / 2 + 1, r, ql, qr );
}

void update( int node, int l, int r, int qpoz, int val ) {
    if( r < qpoz || qpoz < l )
        return;
    if( l == r )
        aint[node] += val;
    else {
        update( 2 * node, l, (l + r) / 2, qpoz, val );
        update( 2 * node + 1, (l + r) / 2 + 1, r, qpoz, val );
        aint[node] = aint[2 * node] + aint[2 * node + 1];
    }
}
//vreau distanta intre doua pozitii
//un interval se muta mai la dreapta
/*int find_pair( int l ) {
    int i, j, rez = 0;
    if( v[l] < 0 ) {
        for( i = l + 1; i < n; i++ ) {
            if( v[i] + v[l] == 0 )
                break;
        }
        //toate pozitiile de la l la i cresc cu 1
        //rez = query( 1, 1, n, 1, n ) - query( 1, 1, n, 1, i );
        //update( 1, 1, n, i, 1 );
        //pozitia l si pozitia i
        v[i] = 0;
        return rez;
    } else if( v[j] > 0 ){
        for( i = l + 1; i < n; i++ ) {
            if( v[i] + v[l] == 0 )
                break;
        }
        for( j = i; j > l + 1; j-- )
            v[j] = v[j - 1];
        v[i] = 0;
        return i - l;
    }
    return 0;
}
*/
long long count_swaps( vector<int> s) {
    int i, l, j;
    long long rez = 0;
    n = s.size();
    for( i = 0; i < n; i++ )
        v[i] = s[i];
    for( i = n - 1; i >= 0; i-- ) {
        if( v[i] < 0 )
            fst[-v[i]].push_back( i );
        else
            fdr[v[i]].push_back( i );
    }
    for( l = 0; l < n; l ++ ) {
        if( v[l] == 0 )
            continue;
        if( v[l] < 0 ) {
            fst[-v[l]].pop_back();
            i = fdr[-v[l]].back();
            fdr[-v[l]].pop_back();
        } else {
            fdr[v[l]].pop_back();
            i = fst[v[l]].back();
            fst[v[l]].pop_back();
        }
        // toate poz de la l la i cresc cu 1
        ///cout << "i " << i << " l " << l << "\n";
        rez += i - l - 1 - ( query( 1, 1, n, 1, i ) - query( 1, 1, n, 1, l ) );
        if( v[l] > 0 )
            rez++;
        update( 1, 1, n, i, 1 );
        v[i] = 0;
        /*cout << "rez " << rez << "\n";
        cout << "aint\n";
        afiseaza( 1, 1, n );
        cout << "vector\n";
        for( j = 0; j < n; j++ )
            cout << v[j] << " ";
        cout << "\n";*/
    }
    return rez;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:69:15: warning: unused variable 'j' [-Wunused-variable]
   69 |     int i, l, j;
      |               ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9820 KB Output is correct
4 Correct 6 ms 9820 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 5 ms 9820 KB Output is correct
7 Correct 4 ms 9648 KB Output is correct
8 Correct 4 ms 9820 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 4 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 4 ms 9820 KB Output is correct
13 Correct 5 ms 9820 KB Output is correct
14 Correct 4 ms 9820 KB Output is correct
15 Correct 4 ms 9820 KB Output is correct
16 Correct 4 ms 9820 KB Output is correct
17 Correct 4 ms 9820 KB Output is correct
18 Correct 4 ms 9820 KB Output is correct
19 Correct 4 ms 9820 KB Output is correct
20 Correct 4 ms 9824 KB Output is correct
21 Correct 4 ms 9800 KB Output is correct
22 Correct 4 ms 9820 KB Output is correct
23 Correct 4 ms 9820 KB Output is correct
24 Correct 4 ms 9820 KB Output is correct
25 Correct 4 ms 9820 KB Output is correct
26 Correct 4 ms 9820 KB Output is correct
27 Correct 4 ms 9820 KB Output is correct
28 Correct 5 ms 9820 KB Output is correct
29 Correct 4 ms 9820 KB Output is correct
30 Correct 4 ms 9820 KB Output is correct
31 Correct 4 ms 9668 KB Output is correct
32 Correct 4 ms 9816 KB Output is correct
33 Correct 6 ms 9820 KB Output is correct
34 Correct 4 ms 9820 KB Output is correct
35 Correct 4 ms 9820 KB Output is correct
36 Correct 4 ms 9820 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9992 KB Output is correct
4 Correct 4 ms 9820 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 4 ms 9820 KB Output is correct
7 Correct 6 ms 9820 KB Output is correct
8 Correct 4 ms 9820 KB Output is correct
9 Correct 4 ms 9648 KB Output is correct
10 Correct 4 ms 9820 KB Output is correct
11 Correct 4 ms 9648 KB Output is correct
12 Correct 4 ms 9648 KB Output is correct
13 Correct 4 ms 9972 KB Output is correct
14 Correct 4 ms 9820 KB Output is correct
15 Correct 5 ms 9820 KB Output is correct
16 Correct 4 ms 9820 KB Output is correct
17 Correct 4 ms 9816 KB Output is correct
18 Correct 5 ms 9820 KB Output is correct
19 Correct 5 ms 9976 KB Output is correct
20 Correct 9 ms 10332 KB Output is correct
21 Correct 9 ms 10364 KB Output is correct
22 Correct 61 ms 15120 KB Output is correct
23 Correct 61 ms 15044 KB Output is correct
24 Correct 62 ms 15028 KB Output is correct
25 Correct 52 ms 14148 KB Output is correct
26 Correct 58 ms 16328 KB Output is correct
27 Correct 53 ms 16072 KB Output is correct
28 Correct 52 ms 15292 KB Output is correct
29 Correct 53 ms 15420 KB Output is correct
30 Correct 59 ms 15336 KB Output is correct
31 Correct 57 ms 16220 KB Output is correct
32 Correct 52 ms 15352 KB Output is correct
33 Correct 51 ms 15192 KB Output is correct
34 Correct 53 ms 15180 KB Output is correct
35 Correct 4 ms 9816 KB Output is correct
36 Correct 4 ms 9848 KB Output is correct
37 Correct 53 ms 15668 KB Output is correct
38 Correct 66 ms 15344 KB Output is correct
39 Correct 52 ms 15424 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9820 KB Output is correct
4 Correct 4 ms 9816 KB Output is correct
5 Correct 68 ms 20552 KB Output is correct
6 Correct 60 ms 15712 KB Output is correct
7 Correct 66 ms 20560 KB Output is correct
8 Correct 53 ms 15396 KB Output is correct
9 Correct 68 ms 20552 KB Output is correct
10 Correct 72 ms 17492 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9820 KB Output is correct
4 Correct 6 ms 9820 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 5 ms 9820 KB Output is correct
7 Correct 4 ms 9648 KB Output is correct
8 Correct 4 ms 9820 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 4 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 4 ms 9820 KB Output is correct
13 Correct 5 ms 9820 KB Output is correct
14 Correct 4 ms 9820 KB Output is correct
15 Correct 4 ms 9820 KB Output is correct
16 Correct 4 ms 9820 KB Output is correct
17 Correct 4 ms 9820 KB Output is correct
18 Correct 4 ms 9820 KB Output is correct
19 Correct 4 ms 9820 KB Output is correct
20 Correct 4 ms 9824 KB Output is correct
21 Correct 4 ms 9800 KB Output is correct
22 Correct 4 ms 9820 KB Output is correct
23 Correct 4 ms 9820 KB Output is correct
24 Correct 4 ms 9820 KB Output is correct
25 Correct 4 ms 9820 KB Output is correct
26 Correct 4 ms 9820 KB Output is correct
27 Correct 4 ms 9820 KB Output is correct
28 Correct 5 ms 9820 KB Output is correct
29 Correct 4 ms 9820 KB Output is correct
30 Correct 4 ms 9820 KB Output is correct
31 Correct 4 ms 9668 KB Output is correct
32 Correct 4 ms 9816 KB Output is correct
33 Correct 6 ms 9820 KB Output is correct
34 Correct 4 ms 9820 KB Output is correct
35 Correct 4 ms 9820 KB Output is correct
36 Correct 4 ms 9820 KB Output is correct
37 Correct 4 ms 9820 KB Output is correct
38 Correct 4 ms 9820 KB Output is correct
39 Correct 4 ms 9820 KB Output is correct
40 Correct 4 ms 9820 KB Output is correct
41 Correct 5 ms 9820 KB Output is correct
42 Correct 4 ms 9868 KB Output is correct
43 Correct 4 ms 9820 KB Output is correct
44 Correct 4 ms 9848 KB Output is correct
45 Correct 4 ms 9820 KB Output is correct
46 Correct 4 ms 9820 KB Output is correct
47 Correct 4 ms 9820 KB Output is correct
48 Correct 4 ms 9820 KB Output is correct
49 Correct 5 ms 9820 KB Output is correct
50 Correct 4 ms 9820 KB Output is correct
51 Correct 4 ms 9788 KB Output is correct
52 Correct 5 ms 9948 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9820 KB Output is correct
4 Correct 6 ms 9820 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 5 ms 9820 KB Output is correct
7 Correct 4 ms 9648 KB Output is correct
8 Correct 4 ms 9820 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 4 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 4 ms 9820 KB Output is correct
13 Correct 5 ms 9820 KB Output is correct
14 Correct 4 ms 9820 KB Output is correct
15 Correct 4 ms 9820 KB Output is correct
16 Correct 4 ms 9820 KB Output is correct
17 Correct 4 ms 9820 KB Output is correct
18 Correct 4 ms 9820 KB Output is correct
19 Correct 4 ms 9820 KB Output is correct
20 Correct 4 ms 9824 KB Output is correct
21 Correct 4 ms 9800 KB Output is correct
22 Correct 4 ms 9820 KB Output is correct
23 Correct 4 ms 9820 KB Output is correct
24 Correct 4 ms 9820 KB Output is correct
25 Correct 4 ms 9820 KB Output is correct
26 Correct 4 ms 9820 KB Output is correct
27 Correct 4 ms 9820 KB Output is correct
28 Correct 5 ms 9820 KB Output is correct
29 Correct 4 ms 9820 KB Output is correct
30 Correct 4 ms 9820 KB Output is correct
31 Correct 4 ms 9668 KB Output is correct
32 Correct 4 ms 9816 KB Output is correct
33 Correct 6 ms 9820 KB Output is correct
34 Correct 4 ms 9820 KB Output is correct
35 Correct 4 ms 9820 KB Output is correct
36 Correct 4 ms 9820 KB Output is correct
37 Correct 4 ms 9992 KB Output is correct
38 Correct 4 ms 9820 KB Output is correct
39 Correct 4 ms 9820 KB Output is correct
40 Correct 4 ms 9820 KB Output is correct
41 Correct 6 ms 9820 KB Output is correct
42 Correct 4 ms 9820 KB Output is correct
43 Correct 4 ms 9648 KB Output is correct
44 Correct 4 ms 9820 KB Output is correct
45 Correct 4 ms 9648 KB Output is correct
46 Correct 4 ms 9648 KB Output is correct
47 Correct 4 ms 9972 KB Output is correct
48 Correct 4 ms 9820 KB Output is correct
49 Correct 5 ms 9820 KB Output is correct
50 Correct 4 ms 9820 KB Output is correct
51 Correct 4 ms 9816 KB Output is correct
52 Correct 5 ms 9820 KB Output is correct
53 Correct 5 ms 9976 KB Output is correct
54 Correct 9 ms 10332 KB Output is correct
55 Correct 9 ms 10364 KB Output is correct
56 Correct 61 ms 15120 KB Output is correct
57 Correct 61 ms 15044 KB Output is correct
58 Correct 62 ms 15028 KB Output is correct
59 Correct 52 ms 14148 KB Output is correct
60 Correct 58 ms 16328 KB Output is correct
61 Correct 53 ms 16072 KB Output is correct
62 Correct 52 ms 15292 KB Output is correct
63 Correct 53 ms 15420 KB Output is correct
64 Correct 59 ms 15336 KB Output is correct
65 Correct 57 ms 16220 KB Output is correct
66 Correct 52 ms 15352 KB Output is correct
67 Correct 51 ms 15192 KB Output is correct
68 Correct 53 ms 15180 KB Output is correct
69 Correct 4 ms 9816 KB Output is correct
70 Correct 4 ms 9848 KB Output is correct
71 Correct 53 ms 15668 KB Output is correct
72 Correct 66 ms 15344 KB Output is correct
73 Correct 52 ms 15424 KB Output is correct
74 Correct 4 ms 9820 KB Output is correct
75 Correct 4 ms 9820 KB Output is correct
76 Correct 4 ms 9820 KB Output is correct
77 Correct 4 ms 9816 KB Output is correct
78 Correct 68 ms 20552 KB Output is correct
79 Correct 60 ms 15712 KB Output is correct
80 Correct 66 ms 20560 KB Output is correct
81 Correct 53 ms 15396 KB Output is correct
82 Correct 68 ms 20552 KB Output is correct
83 Correct 72 ms 17492 KB Output is correct
84 Correct 4 ms 9820 KB Output is correct
85 Correct 4 ms 9820 KB Output is correct
86 Correct 4 ms 9820 KB Output is correct
87 Correct 4 ms 9820 KB Output is correct
88 Correct 5 ms 9820 KB Output is correct
89 Correct 4 ms 9868 KB Output is correct
90 Correct 4 ms 9820 KB Output is correct
91 Correct 4 ms 9848 KB Output is correct
92 Correct 4 ms 9820 KB Output is correct
93 Correct 4 ms 9820 KB Output is correct
94 Correct 4 ms 9820 KB Output is correct
95 Correct 4 ms 9820 KB Output is correct
96 Correct 5 ms 9820 KB Output is correct
97 Correct 4 ms 9820 KB Output is correct
98 Correct 4 ms 9788 KB Output is correct
99 Correct 5 ms 9948 KB Output is correct
100 Correct 5 ms 9820 KB Output is correct
101 Correct 12 ms 10840 KB Output is correct
102 Correct 10 ms 10588 KB Output is correct
103 Correct 89 ms 21764 KB Output is correct
104 Correct 71 ms 21624 KB Output is correct
105 Correct 87 ms 19028 KB Output is correct
106 Correct 67 ms 20692 KB Output is correct
107 Correct 69 ms 16976 KB Output is correct
108 Correct 69 ms 17196 KB Output is correct
109 Correct 56 ms 15652 KB Output is correct
110 Correct 52 ms 15176 KB Output is correct
111 Correct 68 ms 19952 KB Output is correct
112 Correct 81 ms 20340 KB Output is correct
113 Correct 71 ms 16076 KB Output is correct
114 Correct 68 ms 20552 KB Output is correct
115 Correct 70 ms 20644 KB Output is correct