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Improve Article Save Article Like Article Improve Article Save Article Like Article Given a string str of length n. The task is to find a lexicographic largest string where you are allowed to shift one character from str to any other index only one time.Examples:Input: n = 3, str = “bac”Output: “cba”Explanation: We can perform the given operation exactly one time on the string str and make many strings. Among them “cba” is lexicographically greater.Input: n = 6, str = “bacatf”Output: tbacaf Approach: This can be…

Predicted over a century ago as monstrous concentrations of mass that torture the fabric of the Universe into traps of light and information, black holes are now established as objects of fact.But might every distortion of light we now come across be a certified concentration of infinite density, or should we leave room for the possibility that other exotic breeds of cosmic oddity might look uncannily like a hole in space as well?Using mathematical modeling preserved for string theory, a trio of physicists from Johns…

Now that spring has sprung and you’re likely outside working on the yard, you might already be tired of mixing gas and oil for the string trimmer. Well, Greenworks is rescuing you from that noisy and smelly gas engine with its 80V 16-inch cordless electric string trimmer. On sale for $180 today only, you’d normally spend $195 or more for this model and this discount delivers the best price that we’ve seen since back in June of last year when it hit $160. We also have a wide selection of Tesla and e-bike…

Hollywood etiquette dictates that when a Hollywood star passes on a role, they don’t talk about it. To do so wouldn’t be fair on the actor who eventually took the role, since this would doom them to an indefinite future of potentially invidious comparisons.There are exceptions, of course. Matt Damon tells a nice story about how he didn’t want to star in Avatar, largely out of faux bitterness at the payday he missed out on. Brad Pitt, too, will admit that he turned down the role of Neo in The Matrix, but this is famously…

Matching text where there’s no perfect matchPhoto by Lucas Santos on UnsplashThe real world is not perfect.People use different forms of the same piece of information. Even well-established systems use different standards. You’d have seen city names misspelled, like “Santana” instead of “Santa Ana” or “St. Louie” instead of “St. Louis.”When working with real-world data, this is inevitable. Thus we must ensure that the data we take to the next steps in our pipeline are standardized.We can tackle this problem with Fuzzy…

import java.lang.Math;  public class Main {    public static int minimumSum(String s)    {        int i, j, n, len_s, diff, ans = 0;        char last = '\0';          len_s = s.length();                          for (i = 0, j = len_s - 1; i < j; i++, j--) {                                    if (s.charAt(i) == s.charAt(j)) {                continue;            }                                    else if (s.charAt(i) == '?'                     && s.charAt(j) != '?') {                s = s.substring(0, i) +…

Given a binary string consisting of 0s and 1s and ‘?’ characters and an integer K, it is allowed to replace ‘?’ with 0 or 1, the task is to check if there is a unique way of replacing ‘?’ with 0s and 1s such that there is only 1 substring of K length containing all 1s. If there is only one way to do so print “Yes” otherwise “No” in all other cases.Note: There should be only 1 possible position of K length substring of all 1s for the answer to be Yes.Examples:Input: S = ?1?0, K = 2Output: NoExplanation: There are two…

#include <bits/stdc++.h>using namespace std;  int solve(string s, string t){    int n = s.size();    string ss = s, tt = t;    sort(ss.begin(), ss.end()), sort(tt.begin(), tt.end());          if (ss != tt) {        return -1;    }    int ans = n;    int left = 0, right = n - 1;    reverse(t.begin(), t.end());    while (left < right) {                  int mid = (left + right) / 2;        int cur = n - 1;        for (auto ch : t) {            if (cur == mid - 1)                break;…

  import java.util.*;public class GFG {          public static void main(String args)    {                  String str = "akmzaxazmk";        int K = 6;                  AlterString(str, K);    }                  static void AlterString(String str, int K)    {                          boolean flag = true;                          HashMap<Character, Integer> map = new HashMap<>();                  for (int i = 0; i < str.length(); i++) {…

If switching from gas to electric is a bit daunting as you think of having to buy yet another battery platform, chargers, and the like, then RYOBI has you covered. As one of America’s largest DIY tool brands, there’s a real possibility you have some RYOBI 18V tools already at home. Whether that’s the case or not, picking up a RYOBI 18V ONE+ 15-inch cordless string trimmer is a good choice either way. The kit includes a 4Ah battery and charger to jump-start your collection and also adds another battery…