oj.uz

Submission #295047

# Submission time Handle Problem Language Result Execution time Memory
295047 2020-09-09T12:49:51 Z SamAnd Arranging Shoes (IOI19_shoes) C++17
100 / 100
 457 ms 275064 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
typedef long long ll;
const int N = 200005;

int n;
int a[N];

int t[N * 4];
void ubd(int tl, int tr, int x, int y, int pos)
{
    if (tl == tr)
    {
        t[pos] = y;
        return;
    }
    int m = (tl + tr) / 2;
    if (x <= m)
        ubd(tl, m, x, y, pos * 2);
    else
        ubd(m + 1, tr, x, y, pos * 2 + 1);
    t[pos] = t[pos * 2] + t[pos * 2 + 1];
}

int qry(int tl, int tr, int l, int r, int pos)
{
    if (l > r)
        return 0;
    if (tl == l && tr == r)
    {
        return t[pos];
    }
    int m = (tl + tr) / 2;
    return (qry(tl, m, l, min(m, r), pos * 2) +
            qry(m + 1, tr, max(m + 1, l), r, pos * 2 + 1));
}

deque<int> l[N], r[N];

long long count_swaps(std::vector<int> s)
{
    n = sz(s) / 2;
    for (int i = 1; i <= n * 2; ++i)
        a[i] = s[i - 1];

    for (int i = 1; i <= n * 2; ++i)
    {
        ubd(1, n * 2, i, 1, 1);
        if (a[i] < 0)
            l[-a[i]].push_back(i);
        else
            r[a[i]].push_back(i);
    }

	ll ans = 0;
	for (int i = 1; i <= n * 2; ++i)
    {
        if (qry(1, n * 2, i, i, 1) == 0)
            continue;
        ans += qry(1, n * 2, min(l[abs(a[i])].front(), r[abs(a[i])].front()),
                                max(l[abs(a[i])].front(), r[abs(a[i])].front()), 1) - 2;
        if (a[i] > 0)
            ++ans;
        ubd(1, n * 2, l[abs(a[i])].front(), 0, 1);
        ubd(1, n * 2, r[abs(a[i])].front(), 0, 1);
        l[abs(a[i])].pop_front();
        r[abs(a[i])].pop_front();
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 269688 KB Output is correct
2 Correct 206 ms 269560 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 269688 KB Output is correct
2 Correct 206 ms 269560 KB Output is correct
3 Correct 204 ms 269560 KB Output is correct
4 Correct 204 ms 269560 KB Output is correct
5 Correct 201 ms 269560 KB Output is correct
6 Correct 200 ms 269560 KB Output is correct
7 Correct 196 ms 269560 KB Output is correct
8 Correct 198 ms 269560 KB Output is correct
9 Correct 197 ms 269560 KB Output is correct
10 Correct 202 ms 269640 KB Output is correct
11 Correct 196 ms 269560 KB Output is correct
12 Correct 196 ms 269560 KB Output is correct
13 Correct 202 ms 269944 KB Output is correct
14 Correct 196 ms 269560 KB Output is correct
15 Correct 198 ms 269560 KB Output is correct
16 Correct 205 ms 269560 KB Output is correct
17 Correct 198 ms 269564 KB Output is correct
18 Correct 199 ms 269560 KB Output is correct
19 Correct 203 ms 269560 KB Output is correct
20 Correct 198 ms 269560 KB Output is correct
21 Correct 193 ms 269560 KB Output is correct
22 Correct 200 ms 269688 KB Output is correct
23 Correct 200 ms 269560 KB Output is correct
24 Correct 205 ms 269600 KB Output is correct
25 Correct 198 ms 269560 KB Output is correct
26 Correct 203 ms 269560 KB Output is correct
27 Correct 204 ms 269560 KB Output is correct
28 Correct 201 ms 269640 KB Output is correct
29 Correct 200 ms 269560 KB Output is correct
30 Correct 199 ms 269560 KB Output is correct
31 Correct 202 ms 269560 KB Output is correct
32 Correct 210 ms 269688 KB Output is correct
33 Correct 204 ms 269560 KB Output is correct
34 Correct 204 ms 269688 KB Output is correct
35 Correct 206 ms 269688 KB Output is correct
36 Correct 199 ms 269560 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 269688 KB Output is correct
2 Correct 206 ms 269560 KB Output is correct
3 Correct 203 ms 269644 KB Output is correct
4 Correct 204 ms 269692 KB Output is correct
5 Correct 200 ms 269588 KB Output is correct
6 Correct 200 ms 269572 KB Output is correct
7 Correct 200 ms 269688 KB Output is correct
8 Correct 202 ms 269560 KB Output is correct
9 Correct 205 ms 269672 KB Output is correct
10 Correct 200 ms 269628 KB Output is correct
11 Correct 200 ms 269560 KB Output is correct
12 Correct 201 ms 269560 KB Output is correct
13 Correct 203 ms 269688 KB Output is correct
14 Correct 202 ms 269560 KB Output is correct
15 Correct 200 ms 269560 KB Output is correct
16 Correct 205 ms 269560 KB Output is correct
17 Correct 208 ms 269560 KB Output is correct
18 Correct 219 ms 269688 KB Output is correct
19 Correct 221 ms 269688 KB Output is correct
20 Correct 231 ms 270364 KB Output is correct
21 Correct 231 ms 270204 KB Output is correct
22 Correct 358 ms 274808 KB Output is correct
23 Correct 359 ms 274808 KB Output is correct
24 Correct 354 ms 274808 KB Output is correct
25 Correct 351 ms 274936 KB Output is correct
26 Correct 354 ms 274832 KB Output is correct
27 Correct 345 ms 274936 KB Output is correct
28 Correct 354 ms 274936 KB Output is correct
29 Correct 360 ms 274808 KB Output is correct
30 Correct 356 ms 275064 KB Output is correct
31 Correct 360 ms 275040 KB Output is correct
32 Correct 357 ms 274860 KB Output is correct
33 Correct 356 ms 274936 KB Output is correct
34 Correct 365 ms 274908 KB Output is correct
35 Correct 208 ms 269560 KB Output is correct
36 Correct 199 ms 269708 KB Output is correct
37 Correct 361 ms 274808 KB Output is correct
38 Correct 369 ms 274808 KB Output is correct
39 Correct 345 ms 274808 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 209 ms 269544 KB Output is correct
2 Correct 204 ms 269688 KB Output is correct
3 Correct 198 ms 269560 KB Output is correct
4 Correct 202 ms 269560 KB Output is correct
5 Correct 411 ms 274040 KB Output is correct
6 Correct 392 ms 274168 KB Output is correct
7 Correct 416 ms 274040 KB Output is correct
8 Correct 354 ms 274936 KB Output is correct
9 Correct 413 ms 274040 KB Output is correct
10 Correct 416 ms 274168 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 269688 KB Output is correct
2 Correct 206 ms 269560 KB Output is correct
3 Correct 204 ms 269560 KB Output is correct
4 Correct 204 ms 269560 KB Output is correct
5 Correct 201 ms 269560 KB Output is correct
6 Correct 200 ms 269560 KB Output is correct
7 Correct 196 ms 269560 KB Output is correct
8 Correct 198 ms 269560 KB Output is correct
9 Correct 197 ms 269560 KB Output is correct
10 Correct 202 ms 269640 KB Output is correct
11 Correct 196 ms 269560 KB Output is correct
12 Correct 196 ms 269560 KB Output is correct
13 Correct 202 ms 269944 KB Output is correct
14 Correct 196 ms 269560 KB Output is correct
15 Correct 198 ms 269560 KB Output is correct
16 Correct 205 ms 269560 KB Output is correct
17 Correct 198 ms 269564 KB Output is correct
18 Correct 199 ms 269560 KB Output is correct
19 Correct 203 ms 269560 KB Output is correct
20 Correct 198 ms 269560 KB Output is correct
21 Correct 193 ms 269560 KB Output is correct
22 Correct 200 ms 269688 KB Output is correct
23 Correct 200 ms 269560 KB Output is correct
24 Correct 205 ms 269600 KB Output is correct
25 Correct 198 ms 269560 KB Output is correct
26 Correct 203 ms 269560 KB Output is correct
27 Correct 204 ms 269560 KB Output is correct
28 Correct 201 ms 269640 KB Output is correct
29 Correct 200 ms 269560 KB Output is correct
30 Correct 199 ms 269560 KB Output is correct
31 Correct 202 ms 269560 KB Output is correct
32 Correct 210 ms 269688 KB Output is correct
33 Correct 204 ms 269560 KB Output is correct
34 Correct 204 ms 269688 KB Output is correct
35 Correct 206 ms 269688 KB Output is correct
36 Correct 199 ms 269560 KB Output is correct
37 Correct 198 ms 269564 KB Output is correct
38 Correct 206 ms 269688 KB Output is correct
39 Correct 206 ms 269760 KB Output is correct
40 Correct 199 ms 269560 KB Output is correct
41 Correct 213 ms 269688 KB Output is correct
42 Correct 201 ms 269688 KB Output is correct
43 Correct 200 ms 269688 KB Output is correct
44 Correct 202 ms 269692 KB Output is correct
45 Correct 204 ms 269816 KB Output is correct
46 Correct 202 ms 269688 KB Output is correct
47 Correct 205 ms 269688 KB Output is correct
48 Correct 208 ms 269688 KB Output is correct
49 Correct 200 ms 269688 KB Output is correct
50 Correct 222 ms 269608 KB Output is correct
51 Correct 215 ms 269688 KB Output is correct
52 Correct 203 ms 269688 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 269688 KB Output is correct
2 Correct 206 ms 269560 KB Output is correct
3 Correct 204 ms 269560 KB Output is correct
4 Correct 204 ms 269560 KB Output is correct
5 Correct 201 ms 269560 KB Output is correct
6 Correct 200 ms 269560 KB Output is correct
7 Correct 196 ms 269560 KB Output is correct
8 Correct 198 ms 269560 KB Output is correct
9 Correct 197 ms 269560 KB Output is correct
10 Correct 202 ms 269640 KB Output is correct
11 Correct 196 ms 269560 KB Output is correct
12 Correct 196 ms 269560 KB Output is correct
13 Correct 202 ms 269944 KB Output is correct
14 Correct 196 ms 269560 KB Output is correct
15 Correct 198 ms 269560 KB Output is correct
16 Correct 205 ms 269560 KB Output is correct
17 Correct 198 ms 269564 KB Output is correct
18 Correct 199 ms 269560 KB Output is correct
19 Correct 203 ms 269560 KB Output is correct
20 Correct 198 ms 269560 KB Output is correct
21 Correct 193 ms 269560 KB Output is correct
22 Correct 200 ms 269688 KB Output is correct
23 Correct 200 ms 269560 KB Output is correct
24 Correct 205 ms 269600 KB Output is correct
25 Correct 198 ms 269560 KB Output is correct
26 Correct 203 ms 269560 KB Output is correct
27 Correct 204 ms 269560 KB Output is correct
28 Correct 201 ms 269640 KB Output is correct
29 Correct 200 ms 269560 KB Output is correct
30 Correct 199 ms 269560 KB Output is correct
31 Correct 202 ms 269560 KB Output is correct
32 Correct 210 ms 269688 KB Output is correct
33 Correct 204 ms 269560 KB Output is correct
34 Correct 204 ms 269688 KB Output is correct
35 Correct 206 ms 269688 KB Output is correct
36 Correct 199 ms 269560 KB Output is correct
37 Correct 203 ms 269644 KB Output is correct
38 Correct 204 ms 269692 KB Output is correct
39 Correct 200 ms 269588 KB Output is correct
40 Correct 200 ms 269572 KB Output is correct
41 Correct 200 ms 269688 KB Output is correct
42 Correct 202 ms 269560 KB Output is correct
43 Correct 205 ms 269672 KB Output is correct
44 Correct 200 ms 269628 KB Output is correct
45 Correct 200 ms 269560 KB Output is correct
46 Correct 201 ms 269560 KB Output is correct
47 Correct 203 ms 269688 KB Output is correct
48 Correct 202 ms 269560 KB Output is correct
49 Correct 200 ms 269560 KB Output is correct
50 Correct 205 ms 269560 KB Output is correct
51 Correct 208 ms 269560 KB Output is correct
52 Correct 219 ms 269688 KB Output is correct
53 Correct 221 ms 269688 KB Output is correct
54 Correct 231 ms 270364 KB Output is correct
55 Correct 231 ms 270204 KB Output is correct
56 Correct 358 ms 274808 KB Output is correct
57 Correct 359 ms 274808 KB Output is correct
58 Correct 354 ms 274808 KB Output is correct
59 Correct 351 ms 274936 KB Output is correct
60 Correct 354 ms 274832 KB Output is correct
61 Correct 345 ms 274936 KB Output is correct
62 Correct 354 ms 274936 KB Output is correct
63 Correct 360 ms 274808 KB Output is correct
64 Correct 356 ms 275064 KB Output is correct
65 Correct 360 ms 275040 KB Output is correct
66 Correct 357 ms 274860 KB Output is correct
67 Correct 356 ms 274936 KB Output is correct
68 Correct 365 ms 274908 KB Output is correct
69 Correct 208 ms 269560 KB Output is correct
70 Correct 199 ms 269708 KB Output is correct
71 Correct 361 ms 274808 KB Output is correct
72 Correct 369 ms 274808 KB Output is correct
73 Correct 345 ms 274808 KB Output is correct
74 Correct 209 ms 269544 KB Output is correct
75 Correct 204 ms 269688 KB Output is correct
76 Correct 198 ms 269560 KB Output is correct
77 Correct 202 ms 269560 KB Output is correct
78 Correct 411 ms 274040 KB Output is correct
79 Correct 392 ms 274168 KB Output is correct
80 Correct 416 ms 274040 KB Output is correct
81 Correct 354 ms 274936 KB Output is correct
82 Correct 413 ms 274040 KB Output is correct
83 Correct 416 ms 274168 KB Output is correct
84 Correct 198 ms 269564 KB Output is correct
85 Correct 206 ms 269688 KB Output is correct
86 Correct 206 ms 269760 KB Output is correct
87 Correct 199 ms 269560 KB Output is correct
88 Correct 213 ms 269688 KB Output is correct
89 Correct 201 ms 269688 KB Output is correct
90 Correct 200 ms 269688 KB Output is correct
91 Correct 202 ms 269692 KB Output is correct
92 Correct 204 ms 269816 KB Output is correct
93 Correct 202 ms 269688 KB Output is correct
94 Correct 205 ms 269688 KB Output is correct
95 Correct 208 ms 269688 KB Output is correct
96 Correct 200 ms 269688 KB Output is correct
97 Correct 222 ms 269608 KB Output is correct
98 Correct 215 ms 269688 KB Output is correct
99 Correct 203 ms 269688 KB Output is correct
100 Correct 204 ms 269756 KB Output is correct
101 Correct 236 ms 269980 KB Output is correct
102 Correct 216 ms 270072 KB Output is correct
103 Correct 457 ms 274076 KB Output is correct
104 Correct 425 ms 274040 KB Output is correct
105 Correct 426 ms 274040 KB Output is correct
106 Correct 422 ms 274044 KB Output is correct
107 Correct 396 ms 274040 KB Output is correct
108 Correct 413 ms 274040 KB Output is correct
109 Correct 365 ms 274808 KB Output is correct
110 Correct 359 ms 274808 KB Output is correct
111 Correct 417 ms 274040 KB Output is correct
112 Correct 441 ms 274016 KB Output is correct
113 Correct 407 ms 274040 KB Output is correct
114 Correct 420 ms 274168 KB Output is correct
115 Correct 417 ms 274052 KB Output is correct