Submission #433847

#	Time	Username	Problem	Language	Result	Execution time	Memory
433847		hhhhaura	Permutation Recovery (info1cup17_permutation)	C++14	100 / 100	1900 ms	3532 KiB

Main

#define wiwihorz
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma loop-opt(on)

#define rep(i, a, b) for(int i = a; i <= b; i ++)
#define rrep(i, a, b) for(int i = b; i >= a; i--)
#define all(x) x.begin(), x.end()
#define ceil(a, b) ((a + b - 1) / (b))

#define INF 1000000000000000000
#define eps (1e-9)

using namespace std;

#define int long long int
#define lld long double
#define pii pair<int, int>
#define random mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count())

#ifdef wiwihorz
#define print(a...) kout("[" + string(#a) + "] = ", a) 
void vprint(auto L, auto R) { while(L < R) cout << *L << " \n"[next(L) == R], ++L;}
void kout() { cerr << endl; }
template<class T1, class ... T2> void kout(T1 a, T2 ... e) { cerr << a << " ", kout(e...); }
#else
#define print(...) 0
#define vprint(...) 0
#endif
namespace solver {
	random;
	int n, sz, bk;
	int MOD = 1125899839733759;
	vector<int> a, tag, vis, ans;
	vector<pii> b;
	void init_(int _n) {
		n = _n, sz = sqrt(n) + 1, bk = ceil(n, sz);
		a.assign(n + 1, 0);
		tag.assign(bk + 1, 0);
		vis.assign(n + 1, 0);
		ans.assign(n + 1, 0);
		b.assign(n + 1, {0, 0});	
	}
	void build(int id) {
		int l = (id - 1) * sz + 1, r = min(n, id * sz);
		rep(i, l, r) {
			pii cur = b[i];
			if(vis[cur.second]) b[i] = {-1, cur.second};
			else b[i] = {(cur.first + tag[id] + MOD) % MOD, cur.second};
		}
		tag[id] = 0;
		sort(b.begin() + l, b.begin() + r + 1);
		return;
	} 
	int get_int(string s) {
		int ans = 0;
		for(auto i : s) ans = (ans * 10 + i - '0') % MOD;
		return ans;
	}
	int query() {
		rrep(i, 1, bk) {
			int l = (i - 1) * sz + 1, r = min(n, i * sz);
			int val = (1 - tag[i] + MOD) % MOD;
			int id = upper_bound(b.begin() + l, b.begin() + r + 1, pii(val, INF)) - b.begin() - 1;
			if(id <= r && id >= l && b[id].first == val) return b[id].second;
		}
		return 0;
	}
	void modify(int st, int val) {
		int id = ceil(st, sz);
		rep(i, (id - 1) * sz + 1, min(n, id * sz)) {
			if(b[i].second >= st) b[i].first = (val + b[i].first) % MOD;
		}
		build(id);
		rep(i, ceil(st, sz) + 1, bk) tag[i] = (tag[i] + val) % MOD;
	} 
	void solve() {
		rrep(i, 1, n) {
			a[i] = (a[i] - a[i - 1] + MOD) % MOD;
			b[i] = {a[i], i};
		}
		rep(i, 1, bk) build(i);
		rep(i, 1, n) {
			int cur = query();
			ans[cur] = i, vis[cur] = 1;
			modify(cur, MOD - a[cur]);
		}
		rep(i, 1, n) cout << ans[i] << " \n"[i == n];
	}
};
using namespace solver;
signed main() {
	ios::sync_with_stdio(false), cin.tie(0);
	int n; cin >> n;
	init_(n);
	rep(i, 1, n) {
		string s; cin >> s;
		a[i] = get_int(s);
	}
	solve();
	return 0;
}

Compilation message (stderr)

permutation.cpp:4: warning: ignoring '#pragma loop ' [-Wunknown-pragmas]
    4 | #pragma loop-opt(on)
      | 
permutation.cpp:23:13: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   23 | void vprint(auto L, auto R) { while(L < R) cout << *L << " \n"[next(L) == R], ++L;}
      |             ^~~~
permutation.cpp:23:21: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   23 | void vprint(auto L, auto R) { while(L < R) cout << *L << " \n"[next(L) == R], ++L;}
      |                     ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 18 / 18
• Subtask 4: 17 / 17
• Subtask 5: 11 / 11
• Subtask 6: 7 / 7
• Subtask 7: 16 / 16
• Subtask 8: 6 / 6