oj.uz

Submission #391236

# Submission time Handle Problem Language Result Execution time Memory
391236 2021-04-18T09:45:33 Z Return_0 Bubble Sort 2 (JOI18_bubblesort2) C++17
100 / 100
 3403 ms 128884 KB 
#pragma GCC optimize("Ofast,unroll-loops")
// #pragma comment(linker, "/stack:200000000")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma,tune=native")

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

#ifndef SINA
#include "bubblesort2.h"
#endif

using namespace std;
using namespace __gnu_pbds;

typedef int ll;
typedef long double ld;
typedef pair <ll, ll> pll;

#ifdef SINA
#define dbg(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1> void __f(const char* name, Arg1&& arg1) { cout << name << " : " << arg1 << std::endl; }
template <typename Arg1, typename... Args> void __f (const char* names, Arg1&& arg1, Args&&... args) {
	const char* comma = strchr(names + 1, ',');cout.write(names, comma - names) << " : " << arg1<<" | ";__f(comma+1, args...); }
#define dbg2(x, j, n) cout<< #x << " : "; output((j), (n), x, 1); cout.flush();
#else
#define dbg(...) 0
#define dbg2(x, j, n) 0
#endif
#define SZ(x) ((ll)((x).size()))
#define File(s, t) freopen(s ".txt", "r", stdin); freopen(t ".txt", "w", stdout);
#define input(j, n, a) for (int _i = (j); _i < (n)+(j); _i++) cin>> a[_i];
#define output(j, n, a, t) for (int _i = (j); _i < (n)+(j); _i++) cout<< a[_i] << (((t) && _i != (n)+(j)-1)? ' ' : '\n');
#define kill(x) return cout<< (x) << endl, 0
#define cl const ll
#define fr first
#define sc second
#define lc (v << 1)
#define rc (lc | 1)
#define mid ((l + r) >> 1)
#define All(x) (x).begin(), (x).end()

cl inf = sizeof(ll) == 4 ? (1e9 + 10) : (3e18), mod = 1e9 + 7, MOD = 998244353;

template <class A,class B> ostream& operator << (ostream& out,const pair<A,B>&a){return out<<'('<<a.first<<", "<<a.second<<')';}
template <class A> ostream& operator << (ostream& out, const vector<A> &a) {
	out<< '['; for (int i = -1; ++i < int(a.size());) out<< a[i] << (i + 1 < int(a.size()) ? ", " : ""); return out<<']'; }
template <class T, typename _t = less <T> > using Tree = tree <T, null_type, _t, rb_tree_tag, tree_order_statistics_node_update>;

cl N = 5e5 + 7;

struct segtree {
	ll l, r, mx, lz;
	segtree *lt, *rt;
	inline segtree (cl &L = 1, cl &R = N - 2) : l(L), r(R), mx(0), lz(0) {}

	void build () {
		mx = -inf;
		if (l == r) return;
		lt = new segtree (l, mid);
		rt = new segtree (mid + 1, r);
		lt->build();
		rt->build();
	}

	inline void push (cl &x) { mx += x; lz += x; }
	inline void shift () { lt->push(lz); rt->push(lz); lz = 0; }

	void upd (cl &ql, cl &qr, cl &x) {
		if (r < ql || qr < l)   return;
		if (ql <= l && r <= qr) {
			push(x);
			return;
		}
		shift();
		lt->upd(ql, qr, x);
		rt->upd(ql, qr, x);
		mx = max(lt->mx, rt->mx);
	}

	ll ask (cl &ql, cl &qr) {
		if (r < ql || qr < l)   return -inf;
		if (ql <= l && r <= qr) return mx;
		shift();
		return max(lt->ask(ql, qr), rt->ask(ql, qr));
	}
} seg;

vector <ll> countScans (vector <ll> a, vector <ll> x, vector <ll> v) {
	ll n = SZ(a), q = SZ(x);
	vector <pll> cmprs;
	for (ll i = 0; i < n; i++) cmprs.push_back({a[i], i});
	for (ll i = 0; i < q; i++) cmprs.push_back({v[i], x[i]});
	sort(All(cmprs)); cmprs.resize(unique(All(cmprs)) - cmprs.begin());
	seg.r = SZ(cmprs); seg.build();
	const auto fun = [&](cl &val, cl &pos, cl &z) {
		ll P = lower_bound(All(cmprs), pll(val, pos)) - cmprs.begin() + 1;
		seg.upd(P, P, z * (inf + pos));
		seg.upd(P + 1, seg.r, z * -1);
	};
	for (ll i = 0; i < n; i++) fun(a[i], i, 1);
	vector <ll> ans (q);
	for (ll i = 0, p1, p2; i < q; i++) {
		fun(a[x[i]], x[i], -1);
		a[x[i]] = v[i];
		fun(v[i], x[i], 1);
		ans[i] = seg.mx;
	}
	return ans;
}

#ifdef SINA
int main ()
{
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);

	cout<< countScans({1, 2, 3, 4}, {0, 2}, {3, 1}) << endl;

	cerr<< "\nTime elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n";

	return 0;
}
#endif
/*

*/

Compilation message

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:103:17: warning: unused variable 'p1' [-Wunused-variable]
  103 |  for (ll i = 0, p1, p2; i < q; i++) {
      |                 ^~
bubblesort2.cpp:103:21: warning: unused variable 'p2' [-Wunused-variable]
  103 |  for (ll i = 0, p1, p2; i < q; i++) {
      |                     ^~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 6 ms 716 KB Output is correct
4 Correct 6 ms 688 KB Output is correct
5 Correct 6 ms 732 KB Output is correct
6 Correct 5 ms 696 KB Output is correct
7 Correct 5 ms 716 KB Output is correct
8 Correct 7 ms 972 KB Output is correct
9 Correct 6 ms 804 KB Output is correct
10 Correct 5 ms 700 KB Output is correct
11 Correct 5 ms 716 KB Output is correct
12 Correct 5 ms 716 KB Output is correct
13 Correct 5 ms 716 KB Output is correct
14 Correct 5 ms 716 KB Output is correct
15 Correct 5 ms 720 KB Output is correct
16 Correct 5 ms 588 KB Output is correct
17 Correct 5 ms 588 KB Output is correct
18 Correct 6 ms 704 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 6 ms 716 KB Output is correct
4 Correct 6 ms 688 KB Output is correct
5 Correct 6 ms 732 KB Output is correct
6 Correct 5 ms 696 KB Output is correct
7 Correct 5 ms 716 KB Output is correct
8 Correct 7 ms 972 KB Output is correct
9 Correct 6 ms 804 KB Output is correct
10 Correct 5 ms 700 KB Output is correct
11 Correct 5 ms 716 KB Output is correct
12 Correct 5 ms 716 KB Output is correct
13 Correct 5 ms 716 KB Output is correct
14 Correct 5 ms 716 KB Output is correct
15 Correct 5 ms 720 KB Output is correct
16 Correct 5 ms 588 KB Output is correct
17 Correct 5 ms 588 KB Output is correct
18 Correct 6 ms 704 KB Output is correct
19 Correct 21 ms 1996 KB Output is correct
20 Correct 28 ms 2316 KB Output is correct
21 Correct 23 ms 2244 KB Output is correct
22 Correct 23 ms 2264 KB Output is correct
23 Correct 22 ms 2124 KB Output is correct
24 Correct 22 ms 2112 KB Output is correct
25 Correct 21 ms 1996 KB Output is correct
26 Correct 21 ms 2004 KB Output is correct
27 Correct 21 ms 1824 KB Output is correct
28 Correct 21 ms 1856 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 3656 KB Output is correct
2 Correct 101 ms 7868 KB Output is correct
3 Correct 188 ms 12328 KB Output is correct
4 Correct 188 ms 12244 KB Output is correct
5 Correct 183 ms 12184 KB Output is correct
6 Correct 186 ms 12088 KB Output is correct
7 Correct 187 ms 11996 KB Output is correct
8 Correct 181 ms 12088 KB Output is correct
9 Correct 186 ms 12056 KB Output is correct
10 Correct 139 ms 8120 KB Output is correct
11 Correct 140 ms 8120 KB Output is correct
12 Correct 141 ms 8120 KB Output is correct
13 Correct 138 ms 8156 KB Output is correct
14 Correct 136 ms 8120 KB Output is correct
15 Correct 135 ms 8164 KB Output is correct
16 Correct 129 ms 8248 KB Output is correct
17 Correct 132 ms 8144 KB Output is correct
18 Correct 127 ms 8156 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 3 ms 460 KB Output is correct
3 Correct 6 ms 716 KB Output is correct
4 Correct 6 ms 688 KB Output is correct
5 Correct 6 ms 732 KB Output is correct
6 Correct 5 ms 696 KB Output is correct
7 Correct 5 ms 716 KB Output is correct
8 Correct 7 ms 972 KB Output is correct
9 Correct 6 ms 804 KB Output is correct
10 Correct 5 ms 700 KB Output is correct
11 Correct 5 ms 716 KB Output is correct
12 Correct 5 ms 716 KB Output is correct
13 Correct 5 ms 716 KB Output is correct
14 Correct 5 ms 716 KB Output is correct
15 Correct 5 ms 720 KB Output is correct
16 Correct 5 ms 588 KB Output is correct
17 Correct 5 ms 588 KB Output is correct
18 Correct 6 ms 704 KB Output is correct
19 Correct 21 ms 1996 KB Output is correct
20 Correct 28 ms 2316 KB Output is correct
21 Correct 23 ms 2244 KB Output is correct
22 Correct 23 ms 2264 KB Output is correct
23 Correct 22 ms 2124 KB Output is correct
24 Correct 22 ms 2112 KB Output is correct
25 Correct 21 ms 1996 KB Output is correct
26 Correct 21 ms 2004 KB Output is correct
27 Correct 21 ms 1824 KB Output is correct
28 Correct 21 ms 1856 KB Output is correct
29 Correct 32 ms 3656 KB Output is correct
30 Correct 101 ms 7868 KB Output is correct
31 Correct 188 ms 12328 KB Output is correct
32 Correct 188 ms 12244 KB Output is correct
33 Correct 183 ms 12184 KB Output is correct
34 Correct 186 ms 12088 KB Output is correct
35 Correct 187 ms 11996 KB Output is correct
36 Correct 181 ms 12088 KB Output is correct
37 Correct 186 ms 12056 KB Output is correct
38 Correct 139 ms 8120 KB Output is correct
39 Correct 140 ms 8120 KB Output is correct
40 Correct 141 ms 8120 KB Output is correct
41 Correct 138 ms 8156 KB Output is correct
42 Correct 136 ms 8120 KB Output is correct
43 Correct 135 ms 8164 KB Output is correct
44 Correct 129 ms 8248 KB Output is correct
45 Correct 132 ms 8144 KB Output is correct
46 Correct 127 ms 8156 KB Output is correct
47 Correct 757 ms 38188 KB Output is correct
48 Correct 3080 ms 117688 KB Output is correct
49 Correct 3403 ms 128632 KB Output is correct
50 Correct 3342 ms 128656 KB Output is correct
51 Correct 3341 ms 128652 KB Output is correct
52 Correct 3356 ms 128624 KB Output is correct
53 Correct 3351 ms 128624 KB Output is correct
54 Correct 3008 ms 128768 KB Output is correct
55 Correct 3210 ms 128884 KB Output is correct
56 Correct 2917 ms 128800 KB Output is correct
57 Correct 3117 ms 128804 KB Output is correct
58 Correct 2916 ms 128800 KB Output is correct
59 Correct 2658 ms 115824 KB Output is correct
60 Correct 2718 ms 115744 KB Output is correct
61 Correct 2728 ms 115672 KB Output is correct
62 Correct 2506 ms 109812 KB Output is correct
63 Correct 2555 ms 109688 KB Output is correct
64 Correct 2567 ms 109728 KB Output is correct
65 Correct 2312 ms 103708 KB Output is correct
66 Correct 2382 ms 103676 KB Output is correct
67 Correct 2385 ms 103620 KB Output is correct