oj.uz

Submission #129397

# Submission time Handle Problem Language Result Execution time Memory
129397 2019-07-12T07:50:36 Z E869120 Permutation Recovery (info1cup17_permutation) C++14
60 / 100
 4000 ms 7320 KB 
#include <iostream>
#include <map>
#include <set>
#include <vector>
#include <string>
using namespace std;

// ------------------ LIBRARY --------------------

const long long mod = 869120869120869120LL;
const long long mod2 = 777777777777777777LL;

const int BACKET = 150;
long long t[1 << 17], u[1 << 17], size_;
set<pair<long long, int>> Set[1 << 13];

void init(vector<long long>E) {
	size_ = E.size() + 1;
	for (int i = 1; i <= E.size(); i++) {
		t[i] = E[i - 1];
		Set[i / BACKET].insert(make_pair(t[i], i));
	}
}

void add_range(int l, int r, long long x) {
	int c = l / BACKET;
	for (int i = l; i < r; i++) {
		Set[c].erase(make_pair(t[i], i));
		t[i] += x; t[i] %= mod;
		Set[c].insert(make_pair(t[i], i));
	}
}

void add(int l, int r, long long x) {
	x = (x + mod) % mod;

	int c1 = l / BACKET, c2 = r / BACKET;
	if (c1 == c2) add_range(l, r, x);
	else {
		add_range(l, (c1 + 1) * BACKET, x);
		add_range(c2 * BACKET, r, x);
		for (int i = c1 + 1; i < c2; i++) {
			u[i] += x; u[i] %= mod;
		}
	}
}

int get_minimum_id() {
	int id = -1;
	for (int i = size_ / BACKET; i >= 0; i--) {
		long long T = (mod + 1LL - u[i]) % mod;
		auto itr = Set[i].lower_bound(make_pair(T + 1LL, 0));
		if (itr != Set[i].begin()) {
			itr--;
			if ((*itr).first == T) { id = (*itr).second; break; }
		}
	}
	return id;
}

long long StringToMod(string S) {
	long long r = 0;
	for (int i = 0; i < S.size(); i++) {
		r *= 10LL; r += (long long)(S[i] - '0');
		r %= mod;
	}
	return r;
}

long long N, A[1 << 18], S[1 << 18];
vector<long long>F;

int main() {
	cin >> N;
	for (int i = 1; i <= N; i++) {
		string V; cin >> V;
		A[i] = StringToMod(V);
	}
	for (int i = N; i >= 1; i--) A[i] = (A[i] - A[i - 1] + mod) % mod;
	for (int i = 1; i <= N; i++) F.push_back(A[i]);

	init(F);

	for (int i = 1; i <= N; i++) {
		int pos1 = get_minimum_id();
		S[pos1] = i;
		add(pos1 + 1, N + 1, -A[pos1]);
		add(pos1, pos1 + 1, mod2);
	}
	for (int i = 1; i <= N; i++) { if (i >= 2) cout << " "; cout << S[i]; } cout << endl;
	return 0;
}

Compilation message

permutation.cpp: In function 'void init(std::vector<long long int>)':
permutation.cpp:19:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 1; i <= E.size(); i++) {
                  ~~^~~~~~~~~~~
permutation.cpp: In function 'long long int StringToMod(std::__cxx11::string)':
permutation.cpp:63:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < S.size(); i++) {
                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 15 ms 764 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 15 ms 764 KB Output is correct
3 Correct 31 ms 760 KB Output is correct
4 Correct 31 ms 732 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 15 ms 764 KB Output is correct
3 Correct 31 ms 760 KB Output is correct
4 Correct 31 ms 732 KB Output is correct
5 Correct 2900 ms 4764 KB Output is correct

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 15 ms 764 KB Output is correct
3 Correct 31 ms 760 KB Output is correct
4 Correct 31 ms 732 KB Output is correct
5 Correct 2900 ms 4764 KB Output is correct
6 Execution timed out 4089 ms 7320 KB Time limit exceeded

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 15 ms 764 KB Output is correct
3 Correct 31 ms 760 KB Output is correct
4 Correct 31 ms 732 KB Output is correct
5 Correct 2900 ms 4764 KB Output is correct
6 Execution timed out 4089 ms 7320 KB Time limit exceeded

Subtask #7
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 15 ms 764 KB Output is correct
3 Correct 31 ms 760 KB Output is correct
4 Correct 31 ms 732 KB Output is correct
5 Correct 2900 ms 4764 KB Output is correct
6 Execution timed out 4089 ms 7320 KB Time limit exceeded

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 760 KB Output is correct
2 Correct 15 ms 764 KB Output is correct
3 Correct 31 ms 760 KB Output is correct
4 Correct 31 ms 732 KB Output is correct
5 Correct 2900 ms 4764 KB Output is correct
6 Execution timed out 4089 ms 7320 KB Time limit exceeded