Submission #448488

#	Time	Username	Problem	Language	Result	Execution time	Memory
448488		osmanallazov	Palindrome-Free Numbers (BOI13_numbers)	C++14	34.17 / 100	1097 ms	324 KiB

numbers

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

Compilation message (stderr)

numbers.cpp: In function 'bool check(std::string)':
numbers.cpp:6:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |     for(int i=0;i<s.size()-2;i++){
      |                 ~^~~~~~~~~~~

• Subtask 1: 22.5 / 25
• Subtask 2: 11.666666666666666 / 75