oj.uz

Submission #294614

# Submission time Handle Problem Language Result Execution time Memory
294614 2020-09-09T07:14:16 Z _7_7_ Arranging Shoes (IOI19_shoes) C++14
100 / 100
 114 ms 19832 KB 
#include "shoes.h"
#include <bits/stdc++.h>                                           
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
//#define int long long
//#pragma GCC optimize("Ofast")
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")
 
 
#define file(s) freopen(s".in","r",stdin); freopen(s".out","w",stdout);
#define fastio ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define all(x) x.begin(), x.end()
#define sz(s) (int)s.size()
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define s second
#define f first
 
 
 
 
typedef pair < long long, long long > pll;    
typedef pair < int, int > pii;  
typedef unsigned long long ull;         
typedef vector < pii > vpii;                                   	
typedef vector < int > vi;
typedef long double ldb;  
typedef long long ll;  
typedef double db;
 
typedef tree < int, null_type, less < int >, rb_tree_tag, tree_order_statistics_node_update > ordered_set;
 
const int inf = 1e9, maxn = 2e5 + 48, mod = 998244353, N = 4e5 + 12;
const int dx[] = {1, -1, 0, 0}, dy[] = {0, 0, 1, -1}, block = 300;
const pii base = mp(1171, 3307), Mod = mp(1e9 + 7, 1e9 + 9);
const db eps = 1e-12, pi = acos(-1);
const ll INF = 1e18;

int t[N], n, pos[N];
bool was[N];
vi g[N];



void inc (int pos, int x) {
	while (pos < n) {
		t[pos] += x;
		pos |= pos + 1;		
	}
}

int get (int r) {
	int res = 0;
	while (r >= 0) {
		res += t[r];
		r = (r & (r + 1)) - 1;
	}

	return res;
}

ll count_swaps(vi s) {
	n = sz(s);
	for (int i = 0; i < n; ++i)  {
		g[s[i] + n].pb(i);
		inc(i, 1);
	}

	for (int i = 0; i <= n + n; ++i)
		reverse(all(g[i]));
	
	ll res = 0;
	for (int i = 0; i < n; ++i) {
		if (was[i])
			continue;
		
		int l, r;
		if (s[i] < 0) {
			l = i;      
			r = g[-s[i] + n].back();
		} else {
			l = g[-s[i] + n].back();
			r = i;	
		}

		was[l] = was[r] = 1;
		g[s[l] + n].ppb();
		g[s[r] + n].ppb();
		
		int cur = get(max(l, r)) - get(min(l, r) - 1);
		if (l > r)
			res += cur - 1;
		else
			res += cur - 2;

		inc(l, -1);
		inc(r, -1);
	}

	return res;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 6 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 6 ms 9728 KB Output is correct
14 Correct 6 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 6 ms 9728 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 6 ms 9728 KB Output is correct
23 Correct 6 ms 9728 KB Output is correct
24 Correct 6 ms 9748 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 6 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 6 ms 9728 KB Output is correct
29 Correct 6 ms 9728 KB Output is correct
30 Correct 6 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 6 ms 9728 KB Output is correct
33 Correct 6 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 6 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 6 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 6 ms 9728 KB Output is correct
13 Correct 7 ms 9728 KB Output is correct
14 Correct 6 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 7 ms 9728 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 7 ms 9728 KB Output is correct
20 Correct 10 ms 10112 KB Output is correct
21 Correct 10 ms 10112 KB Output is correct
22 Correct 50 ms 13208 KB Output is correct
23 Correct 49 ms 14572 KB Output is correct
24 Correct 51 ms 14572 KB Output is correct
25 Correct 43 ms 14192 KB Output is correct
26 Correct 51 ms 14572 KB Output is correct
27 Correct 46 ms 14316 KB Output is correct
28 Correct 49 ms 14492 KB Output is correct
29 Correct 48 ms 14448 KB Output is correct
30 Correct 48 ms 14448 KB Output is correct
31 Correct 49 ms 14468 KB Output is correct
32 Correct 47 ms 14448 KB Output is correct
33 Correct 44 ms 14192 KB Output is correct
34 Correct 48 ms 14448 KB Output is correct
35 Correct 7 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct
37 Correct 47 ms 14448 KB Output is correct
38 Correct 48 ms 14448 KB Output is correct
39 Correct 47 ms 14448 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 83 ms 18552 KB Output is correct
6 Correct 67 ms 15100 KB Output is correct
7 Correct 84 ms 19832 KB Output is correct
8 Correct 49 ms 14520 KB Output is correct
9 Correct 82 ms 19832 KB Output is correct
10 Correct 88 ms 16632 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 6 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 6 ms 9728 KB Output is correct
14 Correct 6 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 6 ms 9728 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 6 ms 9728 KB Output is correct
23 Correct 6 ms 9728 KB Output is correct
24 Correct 6 ms 9748 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 6 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 6 ms 9728 KB Output is correct
29 Correct 6 ms 9728 KB Output is correct
30 Correct 6 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 6 ms 9728 KB Output is correct
33 Correct 6 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct
37 Correct 7 ms 9728 KB Output is correct
38 Correct 6 ms 9728 KB Output is correct
39 Correct 6 ms 9728 KB Output is correct
40 Correct 6 ms 9728 KB Output is correct
41 Correct 7 ms 9856 KB Output is correct
42 Correct 7 ms 9856 KB Output is correct
43 Correct 7 ms 9856 KB Output is correct
44 Correct 7 ms 9728 KB Output is correct
45 Correct 7 ms 9728 KB Output is correct
46 Correct 7 ms 9728 KB Output is correct
47 Correct 7 ms 9728 KB Output is correct
48 Correct 7 ms 9728 KB Output is correct
49 Correct 7 ms 9728 KB Output is correct
50 Correct 7 ms 9728 KB Output is correct
51 Correct 7 ms 9728 KB Output is correct
52 Correct 7 ms 9856 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9728 KB Output is correct
2 Correct 6 ms 9728 KB Output is correct
3 Correct 6 ms 9728 KB Output is correct
4 Correct 6 ms 9728 KB Output is correct
5 Correct 6 ms 9728 KB Output is correct
6 Correct 6 ms 9728 KB Output is correct
7 Correct 6 ms 9728 KB Output is correct
8 Correct 6 ms 9728 KB Output is correct
9 Correct 7 ms 9728 KB Output is correct
10 Correct 6 ms 9728 KB Output is correct
11 Correct 7 ms 9728 KB Output is correct
12 Correct 7 ms 9728 KB Output is correct
13 Correct 6 ms 9728 KB Output is correct
14 Correct 6 ms 9728 KB Output is correct
15 Correct 6 ms 9728 KB Output is correct
16 Correct 6 ms 9728 KB Output is correct
17 Correct 6 ms 9728 KB Output is correct
18 Correct 6 ms 9728 KB Output is correct
19 Correct 6 ms 9728 KB Output is correct
20 Correct 6 ms 9728 KB Output is correct
21 Correct 6 ms 9728 KB Output is correct
22 Correct 6 ms 9728 KB Output is correct
23 Correct 6 ms 9728 KB Output is correct
24 Correct 6 ms 9748 KB Output is correct
25 Correct 7 ms 9728 KB Output is correct
26 Correct 6 ms 9728 KB Output is correct
27 Correct 7 ms 9728 KB Output is correct
28 Correct 6 ms 9728 KB Output is correct
29 Correct 6 ms 9728 KB Output is correct
30 Correct 6 ms 9728 KB Output is correct
31 Correct 7 ms 9728 KB Output is correct
32 Correct 6 ms 9728 KB Output is correct
33 Correct 6 ms 9728 KB Output is correct
34 Correct 7 ms 9728 KB Output is correct
35 Correct 6 ms 9728 KB Output is correct
36 Correct 6 ms 9728 KB Output is correct
37 Correct 6 ms 9728 KB Output is correct
38 Correct 6 ms 9728 KB Output is correct
39 Correct 6 ms 9728 KB Output is correct
40 Correct 6 ms 9728 KB Output is correct
41 Correct 6 ms 9728 KB Output is correct
42 Correct 6 ms 9728 KB Output is correct
43 Correct 6 ms 9728 KB Output is correct
44 Correct 6 ms 9728 KB Output is correct
45 Correct 7 ms 9728 KB Output is correct
46 Correct 6 ms 9728 KB Output is correct
47 Correct 7 ms 9728 KB Output is correct
48 Correct 6 ms 9728 KB Output is correct
49 Correct 6 ms 9728 KB Output is correct
50 Correct 6 ms 9728 KB Output is correct
51 Correct 7 ms 9728 KB Output is correct
52 Correct 6 ms 9728 KB Output is correct
53 Correct 7 ms 9728 KB Output is correct
54 Correct 10 ms 10112 KB Output is correct
55 Correct 10 ms 10112 KB Output is correct
56 Correct 50 ms 13208 KB Output is correct
57 Correct 49 ms 14572 KB Output is correct
58 Correct 51 ms 14572 KB Output is correct
59 Correct 43 ms 14192 KB Output is correct
60 Correct 51 ms 14572 KB Output is correct
61 Correct 46 ms 14316 KB Output is correct
62 Correct 49 ms 14492 KB Output is correct
63 Correct 48 ms 14448 KB Output is correct
64 Correct 48 ms 14448 KB Output is correct
65 Correct 49 ms 14468 KB Output is correct
66 Correct 47 ms 14448 KB Output is correct
67 Correct 44 ms 14192 KB Output is correct
68 Correct 48 ms 14448 KB Output is correct
69 Correct 7 ms 9728 KB Output is correct
70 Correct 6 ms 9728 KB Output is correct
71 Correct 47 ms 14448 KB Output is correct
72 Correct 48 ms 14448 KB Output is correct
73 Correct 47 ms 14448 KB Output is correct
74 Correct 6 ms 9728 KB Output is correct
75 Correct 6 ms 9728 KB Output is correct
76 Correct 6 ms 9728 KB Output is correct
77 Correct 6 ms 9728 KB Output is correct
78 Correct 83 ms 18552 KB Output is correct
79 Correct 67 ms 15100 KB Output is correct
80 Correct 84 ms 19832 KB Output is correct
81 Correct 49 ms 14520 KB Output is correct
82 Correct 82 ms 19832 KB Output is correct
83 Correct 88 ms 16632 KB Output is correct
84 Correct 7 ms 9728 KB Output is correct
85 Correct 6 ms 9728 KB Output is correct
86 Correct 6 ms 9728 KB Output is correct
87 Correct 6 ms 9728 KB Output is correct
88 Correct 7 ms 9856 KB Output is correct
89 Correct 7 ms 9856 KB Output is correct
90 Correct 7 ms 9856 KB Output is correct
91 Correct 7 ms 9728 KB Output is correct
92 Correct 7 ms 9728 KB Output is correct
93 Correct 7 ms 9728 KB Output is correct
94 Correct 7 ms 9728 KB Output is correct
95 Correct 7 ms 9728 KB Output is correct
96 Correct 7 ms 9728 KB Output is correct
97 Correct 7 ms 9728 KB Output is correct
98 Correct 7 ms 9728 KB Output is correct
99 Correct 7 ms 9856 KB Output is correct
100 Correct 7 ms 9856 KB Output is correct
101 Correct 13 ms 10624 KB Output is correct
102 Correct 13 ms 10240 KB Output is correct
103 Correct 113 ms 19832 KB Output is correct
104 Correct 97 ms 19832 KB Output is correct
105 Correct 114 ms 17144 KB Output is correct
106 Correct 82 ms 19832 KB Output is correct
107 Correct 79 ms 15136 KB Output is correct
108 Correct 86 ms 15480 KB Output is correct
109 Correct 48 ms 14704 KB Output is correct
110 Correct 49 ms 14448 KB Output is correct
111 Correct 89 ms 19192 KB Output is correct
112 Correct 107 ms 18424 KB Output is correct
113 Correct 77 ms 15096 KB Output is correct
114 Correct 87 ms 19832 KB Output is correct
115 Correct 83 ms 19832 KB Output is correct