isogram c code example

Example: isogram c

// Function to check 
// if a given string is isogram or not 
string is_isogram(string str) 
{ 
    int len = str.length(); 
  
    // Convert the string in lower case letters 
    for (int i = 0; i < len; i++) 
        str[i] = tolower(str[i]); 
  
    sort(str.begin(), str.end()); 
  
    for (int i = 0; i < len; i++) { 
        if (str[i] == str[i + 1]) 
            return "False"; 
    } 
    return "True"; 
}