oj.uz

Submission #831391

# Submission time Handle Problem Language Result Execution time Memory
831391 2023-08-20T08:05:36 Z Chal1shkan Arranging Shoes (IOI19_shoes) C++14
100 / 100
 159 ms 24440 KB 
//Bismillahir-Rahmanir-Rahim
 
# include <bits/stdc++.h>
 
# define pb push_back
# define ff first
# define ss second
# define nl "\n"
# define sz(x) ((int)(x).size())
# define all(x) (x).begin(), (x).end()
# define deb(x) cerr << #x  << " = " << x << endl; 
# define pll pair <ll, ll>
# define pii pair <int, int>
 
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
 
const ll maxn = 1e5 + 7;
const ll inf = 2e18 + 0;
const ll mod = 1e9 + 7;
const ll dx[] = {-1, 1, 0, 0};
const ll dy[] = {0, 0, -1, 1};
 
using namespace std;
 
pll p[maxn];
ll ans, N;
vector <ll> qwe[2][maxn];

struct segtree {
	ll t[maxn * 8];
	void update (ll pos, ll x, ll v = 1, ll tl = 0, ll tr = N + N - 1) {
		if (tl == tr) {
			t[v] += x;
			return;
		} 
		ll tm = (tl + tr) >> 1;
		if (pos <= tm) {
			update(pos, x, v * 2, tl, tm);
		}
		else {
			update(pos, x, v * 2 + 1, tm + 1, tr);
		}
		t[v] = t[v * 2] + t[v * 2 + 1];
	}
	ll get (ll l, ll r, ll v = 1, ll tl = 0, ll tr = N + N - 1) {
		if (tr < l || r < tl) return 0;
		if (l <= tl && tr <= r) return t[v];
		ll tm = (tl + tr) >> 1;
		return get(l, r, v * 2, tl, tm) + get(l, r, v * 2 + 1, tm + 1, tr);
	}
} st;

void upd (ll x, ll id) {
	if (x < 0) {
		p[-x].ff = id;
	}
	else {
		p[x].ss = id;
	}
}
 
long long count_swaps(vector<int> S){
	ll n = sz(S) / 2; N = n;
	set <ll> zxc;
	for (ll i = 0; i < n + n; ++i) {
		zxc.insert(abs(S[i]));
		if (S[i] < 0) {
			qwe[0][-S[i]].pb(i);
		}
		else {
			qwe[1][S[i]].pb(i);
		}
	}
	ll sz = 0;
	for (ll x : zxc) {
		for (ll i = 0; i < sz(qwe[0][x]); ++i) {
			++sz;
			ll pos1 = qwe[0][x][i], pos2 = qwe[1][x][i];
			S[pos1] = -sz, S[pos2] = sz;
			p[sz] = {-1, -1};
			upd(S[pos1], pos1);
			upd(S[pos2], pos2);
		}
	}
	for (ll i = 0; i < n + n; ++i) {
		if (st.get(i, i)) continue;
		ll x = abs(S[i]);
		if (S[i] > 0) ans++;
		if (p[x].ff > p[x].ss) swap(p[x].ff, p[x].ss);
		ans += p[x].ss - p[x].ff - 1 - st.get(p[x].ff + 1, p[x].ss - 1);
		st.update(p[x].ff, 1); st.update(p[x].ss, 1);
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4984 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4920 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 2 ms 4948 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 2 ms 4948 KB Output is correct
26 Correct 2 ms 4948 KB Output is correct
27 Correct 2 ms 4948 KB Output is correct
28 Correct 2 ms 4948 KB Output is correct
29 Correct 2 ms 4948 KB Output is correct
30 Correct 2 ms 4948 KB Output is correct
31 Correct 2 ms 4948 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4944 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4892 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4948 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 3 ms 5076 KB Output is correct
19 Correct 3 ms 5076 KB Output is correct
20 Correct 8 ms 6100 KB Output is correct
21 Correct 8 ms 6100 KB Output is correct
22 Correct 63 ms 13996 KB Output is correct
23 Correct 67 ms 13920 KB Output is correct
24 Correct 74 ms 13908 KB Output is correct
25 Correct 61 ms 13856 KB Output is correct
26 Correct 63 ms 15248 KB Output is correct
27 Correct 53 ms 15156 KB Output is correct
28 Correct 62 ms 15188 KB Output is correct
29 Correct 62 ms 15164 KB Output is correct
30 Correct 71 ms 15208 KB Output is correct
31 Correct 63 ms 15200 KB Output is correct
32 Correct 62 ms 15216 KB Output is correct
33 Correct 63 ms 15168 KB Output is correct
34 Correct 63 ms 15116 KB Output is correct
35 Correct 2 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 63 ms 15104 KB Output is correct
38 Correct 63 ms 15112 KB Output is correct
39 Correct 62 ms 15160 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 134 ms 23076 KB Output is correct
6 Correct 89 ms 16344 KB Output is correct
7 Correct 132 ms 24440 KB Output is correct
8 Correct 62 ms 15624 KB Output is correct
9 Correct 159 ms 24348 KB Output is correct
10 Correct 108 ms 19348 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4984 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4920 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 2 ms 4948 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 2 ms 4948 KB Output is correct
26 Correct 2 ms 4948 KB Output is correct
27 Correct 2 ms 4948 KB Output is correct
28 Correct 2 ms 4948 KB Output is correct
29 Correct 2 ms 4948 KB Output is correct
30 Correct 2 ms 4948 KB Output is correct
31 Correct 2 ms 4948 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 2 ms 4948 KB Output is correct
39 Correct 2 ms 4948 KB Output is correct
40 Correct 2 ms 4948 KB Output is correct
41 Correct 4 ms 5076 KB Output is correct
42 Correct 3 ms 5076 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5076 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5076 KB Output is correct
47 Correct 3 ms 5076 KB Output is correct
48 Correct 4 ms 5076 KB Output is correct
49 Correct 3 ms 5076 KB Output is correct
50 Correct 3 ms 5076 KB Output is correct
51 Correct 3 ms 5076 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4984 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 2 ms 4948 KB Output is correct
12 Correct 2 ms 4920 KB Output is correct
13 Correct 2 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Correct 2 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 2 ms 4948 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 2 ms 4948 KB Output is correct
23 Correct 2 ms 4948 KB Output is correct
24 Correct 2 ms 4948 KB Output is correct
25 Correct 2 ms 4948 KB Output is correct
26 Correct 2 ms 4948 KB Output is correct
27 Correct 2 ms 4948 KB Output is correct
28 Correct 2 ms 4948 KB Output is correct
29 Correct 2 ms 4948 KB Output is correct
30 Correct 2 ms 4948 KB Output is correct
31 Correct 2 ms 4948 KB Output is correct
32 Correct 2 ms 4948 KB Output is correct
33 Correct 2 ms 4948 KB Output is correct
34 Correct 2 ms 4948 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 2 ms 4948 KB Output is correct
38 Correct 2 ms 4948 KB Output is correct
39 Correct 2 ms 4948 KB Output is correct
40 Correct 2 ms 4948 KB Output is correct
41 Correct 2 ms 4944 KB Output is correct
42 Correct 2 ms 4948 KB Output is correct
43 Correct 2 ms 4892 KB Output is correct
44 Correct 2 ms 4948 KB Output is correct
45 Correct 2 ms 4948 KB Output is correct
46 Correct 2 ms 4948 KB Output is correct
47 Correct 2 ms 4948 KB Output is correct
48 Correct 2 ms 4948 KB Output is correct
49 Correct 2 ms 4948 KB Output is correct
50 Correct 2 ms 4948 KB Output is correct
51 Correct 2 ms 4948 KB Output is correct
52 Correct 3 ms 5076 KB Output is correct
53 Correct 3 ms 5076 KB Output is correct
54 Correct 8 ms 6100 KB Output is correct
55 Correct 8 ms 6100 KB Output is correct
56 Correct 63 ms 13996 KB Output is correct
57 Correct 67 ms 13920 KB Output is correct
58 Correct 74 ms 13908 KB Output is correct
59 Correct 61 ms 13856 KB Output is correct
60 Correct 63 ms 15248 KB Output is correct
61 Correct 53 ms 15156 KB Output is correct
62 Correct 62 ms 15188 KB Output is correct
63 Correct 62 ms 15164 KB Output is correct
64 Correct 71 ms 15208 KB Output is correct
65 Correct 63 ms 15200 KB Output is correct
66 Correct 62 ms 15216 KB Output is correct
67 Correct 63 ms 15168 KB Output is correct
68 Correct 63 ms 15116 KB Output is correct
69 Correct 2 ms 4948 KB Output is correct
70 Correct 3 ms 4948 KB Output is correct
71 Correct 63 ms 15104 KB Output is correct
72 Correct 63 ms 15112 KB Output is correct
73 Correct 62 ms 15160 KB Output is correct
74 Correct 2 ms 4948 KB Output is correct
75 Correct 2 ms 4948 KB Output is correct
76 Correct 2 ms 4948 KB Output is correct
77 Correct 3 ms 4948 KB Output is correct
78 Correct 134 ms 23076 KB Output is correct
79 Correct 89 ms 16344 KB Output is correct
80 Correct 132 ms 24440 KB Output is correct
81 Correct 62 ms 15624 KB Output is correct
82 Correct 159 ms 24348 KB Output is correct
83 Correct 108 ms 19348 KB Output is correct
84 Correct 2 ms 4948 KB Output is correct
85 Correct 2 ms 4948 KB Output is correct
86 Correct 2 ms 4948 KB Output is correct
87 Correct 2 ms 4948 KB Output is correct
88 Correct 4 ms 5076 KB Output is correct
89 Correct 3 ms 5076 KB Output is correct
90 Correct 3 ms 5076 KB Output is correct
91 Correct 3 ms 5076 KB Output is correct
92 Correct 3 ms 5076 KB Output is correct
93 Correct 3 ms 5076 KB Output is correct
94 Correct 3 ms 5076 KB Output is correct
95 Correct 4 ms 5076 KB Output is correct
96 Correct 3 ms 5076 KB Output is correct
97 Correct 3 ms 5076 KB Output is correct
98 Correct 3 ms 5076 KB Output is correct
99 Correct 3 ms 5076 KB Output is correct
100 Correct 4 ms 5076 KB Output is correct
101 Correct 13 ms 6868 KB Output is correct
102 Correct 11 ms 6340 KB Output is correct
103 Correct 149 ms 24440 KB Output is correct
104 Correct 123 ms 24424 KB Output is correct
105 Correct 143 ms 20024 KB Output is correct
106 Correct 159 ms 24400 KB Output is correct
107 Correct 85 ms 16636 KB Output is correct
108 Correct 83 ms 17484 KB Output is correct
109 Correct 64 ms 15840 KB Output is correct
110 Correct 65 ms 15244 KB Output is correct
111 Correct 136 ms 23112 KB Output is correct
112 Correct 151 ms 21936 KB Output is correct
113 Correct 102 ms 16696 KB Output is correct
114 Correct 141 ms 24320 KB Output is correct
115 Correct 126 ms 24348 KB Output is correct