FilesExpand file tree

 master

/

NextSmallerElementonRight.java

Copy path

BlameMore file actions

BlameMore file actions

Latest commit

 

History

History

History

46 lines (42 loc) · 1.02 KB

 master

/

NextSmallerElementonRight.java

Top

File metadata and controls

• Code
• Blame

46 lines (42 loc) · 1.02 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

#https://www.facebook.com/permalink.php?story_fbid=623985158490864&id=100026381556272

# suscribed by chandresh joshi

package com.cjwarrior7.stackandqueue;

import java.util.Stack;

public class DemoNextSmallerElementonRightAlter {

public static void main(String[] args) {

int[] arr= new int[9];

arr[0]=2;

arr[1]=5;

arr[2]=9;

arr[3]=3;

arr[4]=1;

arr[5]=12;

arr[6]=6;

arr[7]=8;

arr[8]=7;

//2 5 9 3 1 12 6 8 7

int[] res=solve(arr);

for (int i = 0; i < res.length ; i++) {

System.out.println(res[i]);

}

}

public static int[] solve(int[] arr){

int[] nge = new int[arr.length];

Stack<Integer> st=new Stack<Integer>();

st.push(0);

for (int i = 1; i <arr.length ; i++) {

while (st.size() > 0 && arr[i] < arr[st.peek()]){

int pos=st.peek();

nge[pos]=arr[i];

st.pop();

}

st.push(i);

}

while (st.size()>0) {

int pos=st.peek();

nge[pos] = -1;

st.pop();

}

return nge;

}

}