Question

How to print the characters need to be removed so that two strings become anagram in C++

Answer 1

#include <iostream>
 
const int TotalABCLetters = 26;
 
void PrintCharactersNeedToBeRemovedForAnagram(std::string str1, std::string str2) {
    int count1[TotalABCLetters] = { 0 }, count2[TotalABCLetters] = { 0 };
  
    // count char frequency str1
    for (int i = 0; str1[i] != '\0'; i++)
        count1[str1[i] - 'a']++;
  
    // count char frequency str2
    for (int i = 0; str2[i] != '\0'; i++)
        count2[str2[i] - 'a']++;
  
    for (int i = 0; i < TotalABCLetters; i++) {
        if (abs(count1[i] - count2[i]))
            std::cout << (char)(i + 'a') << " ";
       
    }
}
  
int main()
{
    std::string str1 = "masterfx", str2 = "ksampret";
     
    PrintCharactersNeedToBeRemovedForAnagram(str1, str2);
}
 



/*
run:
 
f k p x 
 
*/

 

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