/* In this program, we need to find the duplicate characters in the string.
 Example 1 :
 Input : Niket Ranjan
 Output :    
     Duplicate characters in a given string: 
      a
      n
  Explainatin :
        To find the duplicate character from the string, we need to count the occurrence of each character in the string.
        If count is greater than 1, it implies that a character has a duplicate entry in the string.
*/

string = "Niket Ranjan";  
   
print("Duplicate characters in a given string: ");  

for i in range(0, len(string)):  
    count = 1;  
    for j in range(i+1, len(string)):  
        if(string[i] == string[j] and string[i] != ' '):  
            count = count + 1;  
            string = string[:j] + '0' + string[j+1:];  

    if(count > 1 and string[i] != '0'):  
        print(string[i]);  
