*Function to permute the string :* void permute(char *a, int i, int n) //n = Length of the string, i=starting element of the array. { int j; if (i == n) printf("%s\n", a); else { for (j = i; j <= n; j++) { swap((a+i), (a+j)); permute(a, i+1, n); swap((a+i), (a+j)); //backtrack } } }
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