Permutation Program
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class Sample {
public static void main(String[] args) {
permutation("12");
}
public static void permutation(String str) {
permutation("", str);
}
private static void permutation(String prefix, String str) {
int n = str.length();
if (n == 0) System.out.println(prefix);
else {
for
(int i = 0; i < n; i++){
System.out.println(prefix + str.charAt(i)+"------"+str.substring(0, i) + str.substring(i+1, n));
permutation(prefix + str.charAt(i), str.substring(0, i) + str.substring(i+1, n));
}}
}
}
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class Sample {
public static void main(String[] args) {
permutation("12");
}
public static void permutation(String str) {
permutation("", str);
}
private static void permutation(String prefix, String str) {
int n = str.length();
if (n == 0) System.out.println(prefix);
else {
for
(int i = 0; i < n; i++){
System.out.println(prefix + str.charAt(i)+"------"+str.substring(0, i) + str.substring(i+1, n));
permutation(prefix + str.charAt(i), str.substring(0, i) + str.substring(i+1, n));
}}
}
}
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