oj.uz

Submission #257697

# Submission time Handle Problem Language Result Execution time Memory
257697 2020-08-04T14:52:47 Z Hehehe Arranging Shoes (IOI19_shoes) C++14
100 / 100
 623 ms 34284 KB 
#include<bits/stdc++.h> //:3
using namespace std;
typedef long long ll;
#define all(a) (a).begin(), (a).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define pi pair<int, int>
#define sz(x) (int)((x).size())

const int dx[] = {0, 1, 0, -1};
const int dy[] = {1, 0, -1, 0};

const int N = 1e6 + 11;

map<int, set<int>>M;

int t[N];

void update(int v, int l, int r, int pos, int val){
    if(l == r){
        t[v] = val;
        return;
    }

    int mid = (l + r) >> 1;
    if(pos <= mid)update(2*v, l, mid, pos, val);else update(2*v + 1, mid + 1, r, pos, val);

    t[v] = t[2*v] + t[2*v + 1];
}

ll q(int v, int tl, int tr, int l, int r){

    if(tl > r || tr < l)return 0;

    if(l <= tl && tr <= r){
        return t[v];
    }

    int mid = (tl + tr) >> 1;
    return q(2*v, tl, mid, l, r) + q(2*v + 1, mid + 1, tr, l, r);
}

ll count_swaps(vector<int> A){

    int n = sz(A);

    vector<int>a;
    a.push_back(0);

    for(auto it : A)a.push_back(it);

    for(int i = 1; i <= n; i++){
        update(1, 1, n, i, 1);
        M[a[i]].insert(i);
    }

    ll ans = 0;

    for(int i = 1; i <= n; i++){

        if(q(1, 1, n, i, i) == 0)continue;

        if(a[i] > 0)ans++;

        int x = *M[-a[i]].begin();

        ans += (i + 1 <= x - 1 ? q(1, 1, n, i + 1, x - 1) : 0);

        M[a[i]].erase(*M[a[i]].begin());
        M[-a[i]].erase(*M[-a[i]].begin());

        update(1, 1, n, i, 0);
        update(1, 1, n, x, 0);
    }

    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 384 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 1 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 384 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 384 KB Output is correct
11 Correct 0 ms 384 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 0 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 384 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 384 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 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 1 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 512 KB Output is correct
20 Correct 16 ms 1920 KB Output is correct
21 Correct 17 ms 1792 KB Output is correct
22 Correct 176 ms 15340 KB Output is correct
23 Correct 183 ms 15444 KB Output is correct
24 Correct 172 ms 15340 KB Output is correct
25 Correct 194 ms 15244 KB Output is correct
26 Correct 186 ms 15340 KB Output is correct
27 Correct 179 ms 15212 KB Output is correct
28 Correct 199 ms 15340 KB Output is correct
29 Correct 194 ms 15436 KB Output is correct
30 Correct 207 ms 15340 KB Output is correct
31 Correct 195 ms 15340 KB Output is correct
32 Correct 196 ms 15444 KB Output is correct
33 Correct 181 ms 15212 KB Output is correct
34 Correct 196 ms 15340 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 1 ms 256 KB Output is correct
37 Correct 181 ms 15340 KB Output is correct
38 Correct 185 ms 15336 KB Output is correct
39 Correct 220 ms 15340 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 527 ms 34156 KB Output is correct
6 Correct 317 ms 17132 KB Output is correct
7 Correct 490 ms 34156 KB Output is correct
8 Correct 172 ms 15340 KB Output is correct
9 Correct 457 ms 34156 KB Output is correct
10 Correct 421 ms 24748 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 1 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 384 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 384 KB Output is correct
11 Correct 0 ms 384 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 0 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 384 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 384 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 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 384 KB Output is correct
38 Correct 0 ms 384 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 640 KB Output is correct
42 Correct 2 ms 640 KB Output is correct
43 Correct 2 ms 640 KB Output is correct
44 Correct 4 ms 640 KB Output is correct
45 Correct 3 ms 640 KB Output is correct
46 Correct 3 ms 512 KB Output is correct
47 Correct 3 ms 512 KB Output is correct
48 Correct 2 ms 512 KB Output is correct
49 Correct 2 ms 512 KB Output is correct
50 Correct 2 ms 512 KB Output is correct
51 Correct 2 ms 512 KB Output is correct
52 Correct 3 ms 640 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 1 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 384 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 384 KB Output is correct
11 Correct 0 ms 384 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 0 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 384 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 384 KB Output is correct
22 Correct 0 ms 256 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 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 0 ms 256 KB Output is correct
39 Correct 1 ms 256 KB Output is correct
40 Correct 1 ms 256 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 256 KB Output is correct
43 Correct 1 ms 256 KB Output is correct
44 Correct 1 ms 256 KB Output is correct
45 Correct 1 ms 256 KB Output is correct
46 Correct 1 ms 256 KB Output is correct
47 Correct 1 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 1 ms 256 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 384 KB Output is correct
53 Correct 2 ms 512 KB Output is correct
54 Correct 16 ms 1920 KB Output is correct
55 Correct 17 ms 1792 KB Output is correct
56 Correct 176 ms 15340 KB Output is correct
57 Correct 183 ms 15444 KB Output is correct
58 Correct 172 ms 15340 KB Output is correct
59 Correct 194 ms 15244 KB Output is correct
60 Correct 186 ms 15340 KB Output is correct
61 Correct 179 ms 15212 KB Output is correct
62 Correct 199 ms 15340 KB Output is correct
63 Correct 194 ms 15436 KB Output is correct
64 Correct 207 ms 15340 KB Output is correct
65 Correct 195 ms 15340 KB Output is correct
66 Correct 196 ms 15444 KB Output is correct
67 Correct 181 ms 15212 KB Output is correct
68 Correct 196 ms 15340 KB Output is correct
69 Correct 1 ms 256 KB Output is correct
70 Correct 1 ms 256 KB Output is correct
71 Correct 181 ms 15340 KB Output is correct
72 Correct 185 ms 15336 KB Output is correct
73 Correct 220 ms 15340 KB Output is correct
74 Correct 1 ms 256 KB Output is correct
75 Correct 1 ms 256 KB Output is correct
76 Correct 1 ms 256 KB Output is correct
77 Correct 1 ms 384 KB Output is correct
78 Correct 527 ms 34156 KB Output is correct
79 Correct 317 ms 17132 KB Output is correct
80 Correct 490 ms 34156 KB Output is correct
81 Correct 172 ms 15340 KB Output is correct
82 Correct 457 ms 34156 KB Output is correct
83 Correct 421 ms 24748 KB Output is correct
84 Correct 0 ms 384 KB Output is correct
85 Correct 0 ms 384 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 640 KB Output is correct
89 Correct 2 ms 640 KB Output is correct
90 Correct 2 ms 640 KB Output is correct
91 Correct 4 ms 640 KB Output is correct
92 Correct 3 ms 640 KB Output is correct
93 Correct 3 ms 512 KB Output is correct
94 Correct 3 ms 512 KB Output is correct
95 Correct 2 ms 512 KB Output is correct
96 Correct 2 ms 512 KB Output is correct
97 Correct 2 ms 512 KB Output is correct
98 Correct 2 ms 512 KB Output is correct
99 Correct 3 ms 640 KB Output is correct
100 Correct 3 ms 640 KB Output is correct
101 Correct 27 ms 3584 KB Output is correct
102 Correct 26 ms 2176 KB Output is correct
103 Correct 561 ms 34156 KB Output is correct
104 Correct 383 ms 34284 KB Output is correct
105 Correct 466 ms 26000 KB Output is correct
106 Correct 461 ms 34284 KB Output is correct
107 Correct 353 ms 17388 KB Output is correct
108 Correct 325 ms 19564 KB Output is correct
109 Correct 176 ms 15340 KB Output is correct
110 Correct 191 ms 15476 KB Output is correct
111 Correct 486 ms 32108 KB Output is correct
112 Correct 623 ms 30060 KB Output is correct
113 Correct 381 ms 17644 KB Output is correct
114 Correct 533 ms 34156 KB Output is correct
115 Correct 541 ms 34156 KB Output is correct