Submission #121618

#	Time	Username	Problem	Language	Result	Execution time	Memory
121618		sofhiasouza	Palindrome-Free Numbers (BOI13_numbers)	C++14	25 / 100	1089 ms	460 KiB

numbers

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;

int main()
{
	ll a, b;
	cin >> a >> b;

	int cont = 0, cont2 = 0;
	for(ll i = a ; i <= b ; i++)
	{
		string s;
		stringstream ans;
		ans << i;
		ans >> s;

		int flag = 0;
		for(int j = 0 ; j < s.size() ; j++)
		{
			for(int k = j+1 ; k < s.size() ; k++)
			{
				string aux = "";
				for(int p = j ; p <= k ; p++) aux.push_back(s[p]);
				string aux2 = aux;
				reverse(aux2.begin(), aux2.end());
				if(aux == aux2) flag = 1;
			}
		}
		if(flag)
		{
			//cout << i << endl;
			cont2++;
		}
		cont++;
	}
	cout << cont - cont2 << endl;
}

Compilation message (stderr)

numbers.cpp: In function 'int main()':
numbers.cpp:19:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j = 0 ; j < s.size() ; j++)
                   ~~^~~~~~~~~~
numbers.cpp:21:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int k = j+1 ; k < s.size() ; k++)
                      ~~^~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 0 / 75