Submission #448444

#	Time	Username	Problem	Language	Result	Execution time	Memory
448444		fuad27	Palindrome-Free Numbers (BOI13_numbers)	C++14	36.67 / 100	1097 ms	292 KiB

numbers

#include<bits/stdc++.h>
using namespace std;
bool check(string s) {
	if(s.length() >= 2 and s[0] == s[1])return false;
	for(int i = 2;i<s.length();i++) {
		if(s[i] == s[i-2] or s[i] == s[i-1])return false;
	}
	return true;
}
int main () {
	long long a, b, c = 0;
	cin >> a >> b;
	for(long long i = a;i<=b;i++) {
		string s = to_string(i);
		if(check(s))c++;
	}
	cout<<c;
}

Compilation message (stderr)

numbers.cpp: In function 'bool check(std::string)':
numbers.cpp:5:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 |  for(int i = 2;i<s.length();i++) {
      |                ~^~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 11.666666666666666 / 75