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  1. #include<iostream>
  2. #include <bits/stdc++.h>
  3.  
  4. using namespace std;
  5.  
  6. int main(){
  7.  
  8.   string s;
  9.   cin>>s;
  10.  
  11.   int k;
  12.   cin>>k;
  13.   int mlen=1, len=1;
  14.   string ans = "";
  15.   ans.push_back(s[0]);
  16.   string temp = "";
  17.   temp.push_back(s[0]);
  18.   for(int i=1; i<s.size(); i++){
  19.   	if(abs(s[i]-s[i-1])<=k){
  20.   		len++;
  21.   		temp.push_back(s[i]);
  22.   		if(len>mlen){
  23.   			mlen=len;
  24.   			ans=temp;
  25.   		}
  26.   	}
  27.   	else{
  28.   		len=1;
  29.   		temp="";
  30.   	}
  31.   }
  32.  
  33.   cout<< ans;
  34.   return 0;
  35. }
Success #stdin #stdout 0s 5316KB
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https://ideone.com/iUHAnX
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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