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MinUnsortedArray.java
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66 lines (52 loc) · 1.26 KB
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package Array;
import java.util.ArrayList;
/**
* Author - archit.s
* Date - 29/08/18
* Time - 11:07 PM
*/
public class MinUnsortedArray {
public ArrayList<Integer> subUnsort(ArrayList<Integer> A) {
int left = -1, right = -1;
ArrayList<Integer> r = new ArrayList<>();
for(int i=1;i<A.size();i++){
if(A.get(i) < A.get(i-1)){
left = i-1;
break;
}
}
if(left == -1){
r.add(-1);
return r;
}
for(int j=A.size()-2;j>=0;j--){
if(A.get(j) > A.get(j+1)){
right = j+1;
break;
}
}
int min = Integer.MAX_VALUE, max = Integer.MIN_VALUE;
for(int i=left;i<=right;i++){
if(A.get(i)> max){
max = A.get(i);
}
if(A.get(i) < min){
min = A.get(i);
}
}
for(int i=0;i<left;i++){
if(A.get(i) > min){
left = i;
break;
}
}
for(int j=A.size()-1;j>=right+1; j--){
if(A.get(j) < max){
right = j;
}
}
r.add(left);
r.add(right);
return r;
}
}