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Plus_One.java
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45 lines (43 loc) · 1.11 KB
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package com.LeetCode;
import java.util.ArrayList;
public class Plus_One {
public static void main(String[] args) {
int[] arr={1,2,3};
int[] ans=plusOne(arr);
for(int ele: ans) {
System.out.print(ele+" ");
}
}
public static int[] plusOne(int[] digits) {
ArrayList<Integer> res=new ArrayList<>();
int carry=0;
int n=digits.length;
digits[n-1]++;
if(digits[n-1]==10) {
carry=1;
digits[n-1]=0;
}
res.add(digits[n-1]);
for(int i=n-2;i>=0;i--) {
if(carry==1) {
digits[i] += carry;
if(digits[i]==10) {
// carry=1;
digits[i]=0;
}
else
carry = 0;
}
res.add(digits[i]);
}
if(carry!=0)
res.add(carry); //res.add(1);
int[] ans=new int[res.size()];
int ind=ans.length-1;
for(int i=0;i<ans.length;i++) {
ans[i]=res.get(ind);
ind--;
}
return ans;
}
}