remove duplicate from string
// Java program to create a unique string import java.util.*; class IndexOf { // Function to make the string unique public static String unique(String s) { String str = new String(); int len = s.length(); // loop to traverse the string and // check for repeating chars using // IndexOf() method in Java for (int i = 0; i < len; i++) { // character at i'th index of s char c = s.charAt(i); // if c is present in str, it returns // the index of c, else it returns -1 if (str.indexOf(c) < 0) { // adding c to str if -1 is returned str += c; } } return str; } // Driver code public static void main(String[] args) { // Input string with repeating chars String s = "geeksforgeeks"; System.out.println(unique(s)); } }
Source: www.geeksforgeeks.org
delete repeated words in string
#include <stdio.h> #include <stdlib.h> #include <string.h> int main () { char str[100], word[100], twoD[10][30]; int i = 0, j = 0, k = 0, len1 = 0, len2 = 0, l = 0; printf ("Enter the string\n"); gets (str); // let us convert the string into 2D array for (i = 0; str[i] != '\0'; i++) { if (str[i] == ' ') { twoD[k][j] = '\0'; k ++; j = 0; } else { twoD[k][j] = str[i]; j ++; } } twoD[k][j] = '\0'; j = 0; for (i = 0; i < k; i++) { int present = 0; for (l = 1; l < k + 1; l++) { if (twoD[l][j] == '\0' || l == i) { continue; } if (strcmp (twoD[i], twoD[l]) == 0) { twoD[l][j] = '\0'; present = present + 1; } } // if (present > 0) | uncomment this `if` block if you // { | want to remove all the occurrences // twoD[i][j] = '\0'; | of the words including the word // } | itself. } j = 0; for (i = 0; i < k + 1; i++) { if (twoD[i][j] == '\0') continue; else printf ("%s ", twoD[i]); } printf ("\n"); return 0; }
Source: www.sanfoundry.com
Remove all duplicates words from a given sentence
from collections import Counter def remov_duplicates(input): # split input string separated by space input = input.split(" ") # now create dictionary using counter method # which will have strings as key and their # frequencies as value UniqW = Counter(input) # joins two adjacent elements in iterable way s = " ".join(UniqW.keys()) print (s) # Driver program if __name__ == "__main__": input = 'Python is great and Java is also great' remov_duplicates(input)
Source: www.geeksforgeeks.org