Submission #1143046

#	Time	Username	Problem	Language	Result	Execution time	Memory
1143046		stdfloat	Hidden Sequence (info1cup18_hidden)	C++20	100 / 100	3 ms	416 KiB

hidden

#include<bits/stdc++.h>
#include "grader.h"
// #include "grader.cpp"
using namespace std;

#define sz(v)	(int)(v).size()

vector<int> findSequence(int n) {
	int X = ((n + 1) >> 1);

	vector<int> ans = {0};
	while (sz(ans) <= X && isSubsequence(ans)) ans.push_back(0);
	ans.pop_back();

	int x, y;
	if (sz(ans) < X) {
		x = sz(ans);
		y = n - x;
	}
	else {
		ans = {1};
		while (isSubsequence(ans)) ans.push_back(1);
		ans.pop_back();

		y = sz(ans);
		x = n - y;
	}

	ans.assign(n, 0);
	int x1 = 0, y1 = 0;
	for (int i = 0; i < n; i++) {
		if (x1 + 1 + y - y1 <= X) {
			vector<int> v(x1 + 1 + y - y1);
			fill(v.begin() + x1 + 1, v.end(), 1);

			if (isSubsequence(v)) x1++;
			else {
				y1++;
				ans[i] = 1;
			}
		}
		else {
			vector<int> v(y1 + 1 + x - x1);
			fill(v.begin(), v.begin() + y1 + 1, 1);

			if (isSubsequence(v)) {
				y1++;
				ans[i] = 1;
			}
			else x1++;
		}
	}

	return ans;
}

Compilation message (stderr)

grader.cpp: In function 'int main()':
grader.cpp:28:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   28 |     fprintf (fifo_out, "%d\n", ans.size ());
      |                         ~^     ~~~~~~~~~~~
      |                          |              |
      |                          int            std::vector<int>::size_type {aka long unsigned int}
      |                         %ld

• Subtask 1: 20 / 20
• Subtask 2: 80 / 80