Given a string str of size N. The task is to find out whether it is possible to rearrange characters in string str so that for any prime number p <= N and for any integer i ranging from 1 to N/p the condition strp = strp*i must be satisfied. If it is not possible to for any such rearrangement then print -1.
Input : str = “aabaaaa”
Output : baaaaaa
Size of the string is 7.
Indexes 2, 4, 6 contains same character.
Indexes 3, 6 contains the same character.
Input : str = “abcd”
Output : -1
- All positions except the first and those whose number is a prime greater N/2 must have the same symbol.
- Remaining positions can have any symbol. This positions kept using the sieve.
- If the most occurred element in the string is less than these positions then print -1.
Below is the implementation of the above approach:
- Program to print characters present at prime indexes in a given string
- Rearrange a string in the form of integer sum followed by the minimized character
- Check if frequency of character in one string is a factor or multiple of frequency of same character in other string
- Find a string such that every character is lexicographically greater than its immediate next character
- Replace every character of string by character whose ASCII value is K times more than it
- Modify the string such that every character gets replaced with the next character in the keyboard
- Find First element in AP which is multiple of given prime
- Rearrange given string to maximize the occurrence of string t
- Prime Factorization using Sieve O(log n) for multiple queries
- Map every character of one string to another such that all occurrences are mapped to the same character
- Replace every character of a string by a different character
- Rearrange characters in a string such that no two adjacent are same
- Rearrange a string so that all same characters become d distance away
- Rearrange a binary string as alternate x and y occurrences
- Rearrange a string so that all same characters become atleast d distance away
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Improved By : AnkitRai01