Submission #1120635

#	Time	Username	Problem	Language	Result	Execution time	Memory
1120635		vjudge1	Palindrome-Free Numbers (BOI13_numbers)	C++17	35.83 / 100	1092 ms	508 KiB

numbers

// Telebe of adicto yani AzeTurk810
/*
    Author:             AzeTurk810
    Licance:            open source(only authors name must be in code)
    Begin               Time:11/20/2024 20:48
    Problem link:       https://codeforces.com/problemset/problem/1543/D1

*/
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <cmath>
const int MAXN  = 50005;
bool check(std::string s)
{
    std::string sc = s;
    reverse(sc.begin(),sc.end());
    return sc == s;
}

signed main()
{
    std::ios_base::sync_with_stdio(false);std::cin.tie(0);std::cout.tie(0);
    int l,r,ans = 0;
    scanf("%d%d", &l, &r);
   std:: string s,sc,scc;
    for(int i=l;i<=r;i++)
    {
        bool ok = true;
        
        s = std::to_string(i);
        sc="";
        for(int i = 0;i<s.size()-1;i++)
        {
            sc = "";
            scc = "";
            if(s.size() > i )
            {scc =  scc + s[i] ;scc = scc + s[i  +1] ;scc = scc + s[ i + 2];}
            sc = sc + s[i] ;
            sc = sc + s[ i+ 1];
            if(check(sc) || check(scc)){
                ok = false;
                //cout<<sc<< ' '<<scc<< ' '<<s<<endl;
                break;
            }
        }
        if(ok) ans++;
    }printf("%d\n", ans);
}

Compilation message (stderr)

numbers.cpp: In function 'int main()':
numbers.cpp:34:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for(int i = 0;i<s.size()-1;i++)
      |                       ~^~~~~~~~~~~
numbers.cpp:38:25: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   38 |             if(s.size() > i )
      |                ~~~~~~~~~^~~
numbers.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |     scanf("%d%d", &l, &r);
      |     ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 22.5 / 25
• Subtask 2: 13.333333333333334 / 75