Submission #410864

#	Time	Username	Problem	Language	Result	Execution time	Memory
410864		nichke	Hidden Sequence (info1cup18_hidden)	C++14	10 / 100	5 ms	296 KiB

hidden

#include <bits/stdc++.h>
#include <grader.h>
using namespace std;
 
bool isSubsequence(vector<int> vi);
 
vector<int> findSequence(int N) {
	int c1 = 0;
	for (int i = 1; i <= N / 2; i++) {
		vector<int> vi;
		for (int j = 0; j < i; j++) {
			vi.push_back(1);
		}
		if (isSubsequence(vi)) {
			c1++;
		} else {
			break;
		}
	}
	int c0 = 0;
	for (int i = 1; i <= N / 2; i++) {
		vector<int> vi;
		for (int j = 0; j < i; j++) {
			vi.push_back(0);
		}
		if (isSubsequence(vi)) {
			c0++;
		} else {
			break;
		}
	}
	if (c0 * 2 != N) {
		c1 = N - c0;
	} else if (c1 * 2 != N) {
		c0 = N - c1;
	}
	if (c1 >= c0) {
	vector<int> ans;
	while (c1) {
		int c0 = 0;
		for (int i = 1; i <= N; i++) {
			vector<int> vi = ans;
			for (int j = 0; j < i; j++) vi.push_back(0);
			for (int j = 0; j < c1; j++) {
				vi.push_back(1);
			}
			if (vi.size() > N) break;
			if (isSubsequence(vi)) {
				c0++;
			} else {
				break;
			}
		}
		for (int j = 0; j < c0; j++) {
			ans.push_back(0);
		}
		ans.push_back(1);
		c1--;
	}
	while (ans.size() < N) ans.push_back(0);
	return ans;
	} else {
			vector<int> ans;
	while (c0) {
		int c1 = 0;
		for (int i = 1; i <= N; i++) {
			vector<int> vi = ans;
			for (int j = 0; j < i; j++) vi.push_back(1);
			for (int j = 0; j < c0; j++) {
				vi.push_back(0);
			}
			if (vi.size() > N) break;
			if (isSubsequence(vi)) {
				c1++;
			} else {
				break;
			}
		}
		for (int j = 0; j < c1; j++) {
			ans.push_back(1);
		}
		ans.push_back(0);
		c0--;
	}
	while (ans.size() < N) ans.push_back(1);
	return ans;
	}
}

Compilation message (stderr)

hidden.cpp: In function 'std::vector<int> findSequence(int)':
hidden.cpp:47:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |    if (vi.size() > N) break;
      |        ~~~~~~~~~~^~~
hidden.cpp:60:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   60 |  while (ans.size() < N) ans.push_back(0);
      |         ~~~~~~~~~~~^~~
hidden.cpp:72:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   72 |    if (vi.size() > N) break;
      |        ~~~~~~~~~~^~~
hidden.cpp:85:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   85 |  while (ans.size() < N) ans.push_back(1);
      |         ~~~~~~~~~~~^~~
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
grader.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for (int i=0; i<ans.size () && i < N; i++)
      |                   ~^~~~~~~~~~~~

• Subtask 1: 10 / 20
• Subtask 2: 0 / 80