/Java/Permutation and combination program in c

Permutation and combination program in c

// C program to print all permutations with duplicates allowed 
#include <stdio.h> 
#include <string.h> 
  
/* Function to swap values at two pointers */
void swap(char *x, char *y) 
{ 
    char temp; 
    temp = *x; 
    *x = *y; 
    *y = temp; 
} 
  
/* Function to print permutations of string 
This function takes three parameters: 
1. String 
2. Starting index of the string 
3. Ending index of the string. */
void permute(char *a, int l, int r) 
{ 
int i; 
if (l == r) 
    printf("%s\n", a); 
else
{ 
    for (i = l; i <= r; i++) 
    { 
        swap((a+l), (a+i)); 
        permute(a, l+1, r); 
        swap((a+l), (a+i)); //backtrack 
    } 
} 
} 
  
/* Driver program to test above functions */
int main() 
{ 
    char str[] = "ABC"; 
    int n = strlen(str); 
    permute(str, 0, n-1); 
    return 0; 
}

Source: grepper.com

Similar codes

2 votes420 views2 answers
Java remove non numeric characters from string
Java
1 vote350 views1 answer
Get world by name bukkit
Java
1 vote426 views2 answers
Running test from maven vs cucumber test runner
Java
1 vote357 views6 answers
Arraylist java
Java
4 votes387 views1 answer
Source option 5 is no longer supported. Use 7 or later
Java
0 vote471 views1 answer
Spring swagger ui login oauth2
Java Spring
0 vote346 views2 answers
Java empty arraylist
Java
0 vote373 views1 answer
Convert object array to int array java
Java
0 vote362 views1 answer
Flutter doctor –android-licenses gives a java error
Java
1 vote369 views1 answer
How do i print text in java
Java