How to Divide a string into N equal parts in C++

In this tutorial, we will learn how to divide a string into N equal parts in C++. Also, we have given a string and value of N and our task is to divide this string.

For example:

  • Given string: “Better to reduce time complexity”
  • Given the value of N= 4
  • So, we have to divide this string into 4 equal parts.
  • Output:
    Better t
    o reduce
     time co


To illustrate:

  • Firstly, we will get the size of the string over here.
  • Now, to get the size, we will include string.h header file.
  • Further, we will get the size of the part.
  • The size of the part is:
  • Finally, iterate through input string.
  • If the Index number becomes multiple of size_of_part, then put a separator over there that is (\n).

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Divide a string into N equal parts


using namespace std; 

class separator 

// Function for N equal parts 
void separatestring(char str[], int n) 
  int size_of_str = strlen(str); 
  int i; 
  int size_of_part; 

  // Check for the string if it can be divided or not 
  if (size_of_str % n != 0) 

  // Get the size of parts to get the division 
  size_of_part = size_of_str / n; 
  for (i = 0; i< size_of_str; i++) 
    if (i % size_of_part == 0) 
    cout<< str[i]; 

int main() 
  separator s; 
  char str[] = "Better to reduce time complexity"; 

  // Print 4 equal equal parts 
  s.separatestring(str, 4); 
  return 0; 

Output Explanation:

INPUT:  "Better to reduce time complexity"

             Better t
             o reduce
              time co

This is how we can divide a string into n equal parts in C++.

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