oj.uz

Submission #129454

# Submission time Handle Problem Language Result Execution time Memory
129454 2019-07-12T09:00:47 Z E869120 Permutation Recovery (info1cup17_permutation) C++14
100 / 100
 3203 ms 3900 KB 
#include <iostream>
#include <map>
#include <set>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;
#pragma warning (disable: 4996)

int cnta = 0, cntb = 0;

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

const long long mod = 4999999999999LL;
const long long mod2 = 3777777777777LL;

const int BACKET = 250;
long long t[1 << 17], u[1 << 17], size_;
long long X[1 << 13][BACKET + 9], sz[1 << 13];
bool used[1 << 17];

void init(vector<long long>E) {
	size_ = E.size() + 1;
	for (int i = 1; i <= E.size(); i++) {
		t[i] = E[i - 1];
		X[i / BACKET][sz[i / BACKET]] = 131072LL * t[i] + 1LL * i;
		sz[i / BACKET] += 1;
	}
	for (int i = 0; i <= size_ / BACKET; i++) sort(X[i], X[i] + sz[i]);
}

void add_range(int l, int r, long long x) {
	int c = l / BACKET;
	for (int i = l; i < r; i++) { t[i] += x; if (t[i] >= mod) t[i] -= mod; }
	sz[c] = 0;
	for (int i = c * BACKET; i < (c + 1) * BACKET; i++) {
		if (used[i] == true || i <= 0 || i >= size_) continue;
		X[c][sz[c]] = 131072LL * t[i] + 1LL * i;
		sz[c]++;
	}
	sort(X[c], X[c] + sz[c]);
}

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);
		for (int i = c1 + 1; i <= c2; i++) {
			u[i] += x; if (u[i] >= mod) 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]); if (T >= mod) T -= mod;
		int pos1 = lower_bound(X[i], X[i] + sz[i], 131072LL * (T + 1LL)) - X[i]; pos1--;
		if (pos1 >= 0 && (X[i][pos1] >> 17) == T) {
			id = (X[i][pos1] & 131071LL); 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');
		while (r >= mod) r -= mod;
	}
	return r;
}

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

int main() {
	cin >> N;
	for (int i = 1; i <= N; i++) {
		scanf("%s", &cc); string V = "";
		for (int j = 0; j < 100000; j++) {
			if (cc[j] == 0) break;
			V += cc[j]; cc[j] = 0;
		}
		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; used[pos1] = true;
		add(pos1 + 1, N + 1, -A[pos1]);
		if (pos1 % BACKET == BACKET - 1) add_range(pos1, pos1, 0);
	}
	for (int i = 1; i <= N; i++) { if (i >= 2) printf(" "); printf("%d", S[i]); } printf("\n");
	return 0;
}

Compilation message

permutation.cpp:8:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable: 4996)
 
permutation.cpp: In function 'void init(std::vector<long long int>)':
permutation.cpp:24:20: 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:71:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < S.size(); i++) {
                  ~~^~~~~~~~~~
permutation.cpp: In function 'int main()':
permutation.cpp:84:18: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[262144]' [-Wformat=]
   scanf("%s", &cc); string V = "";
               ~~~^
permutation.cpp:102:75: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
  for (int i = 1; i <= N; i++) { if (i >= 2) printf(" "); printf("%d", S[i]); } printf("\n");
                                                                       ~~~~^
permutation.cpp:84:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", &cc); string V = "";
   ~~~~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 7 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 7 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 544 ms 2312 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 7 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 544 ms 2312 KB Output is correct
6 Correct 1210 ms 3776 KB Output is correct

Subtask #6
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 7 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 544 ms 2312 KB Output is correct
6 Correct 1210 ms 3776 KB Output is correct
7 Correct 1370 ms 3900 KB Output is correct

Subtask #7
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 7 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 544 ms 2312 KB Output is correct
6 Correct 1210 ms 3776 KB Output is correct
7 Correct 1370 ms 3900 KB Output is correct
8 Correct 2237 ms 1932 KB Output is correct
9 Correct 2404 ms 3728 KB Output is correct

Subtask #8
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 7 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 544 ms 2312 KB Output is correct
6 Correct 1210 ms 3776 KB Output is correct
7 Correct 1370 ms 3900 KB Output is correct
8 Correct 2237 ms 1932 KB Output is correct
9 Correct 2404 ms 3728 KB Output is correct
10 Correct 3203 ms 3900 KB Output is correct