# Two Sorted Array, merge them

## Two Sorted Array, merge them

public int[] Merge(int[] a1, int[] a2){

int len1=a1.length()-1;

int len2=a2.length()-1;

int len=len1+len2+1;

int[] arr=new int[len];

while(len1>=0&&len2>=0){

if(a1[len1]>a2[len2])

arr[len--]=a1[len1--];

else

arr[len--]=a1[len2--];

}

if(a1.length()>a2.length()){

while(len1>0){

arr[len--]=a1[len1--];

}

}

else{

while(len2>0){

arr[len--]=a2[len2--];

}

}

return arr;

}

int len1=a1.length()-1;

int len2=a2.length()-1;

int len=len1+len2+1;

int[] arr=new int[len];

while(len1>=0&&len2>=0){

if(a1[len1]>a2[len2])

arr[len--]=a1[len1--];

else

arr[len--]=a1[len2--];

}

if(a1.length()>a2.length()){

while(len1>0){

arr[len--]=a1[len1--];

}

}

else{

while(len2>0){

arr[len--]=a2[len2--];

}

}

return arr;

}

**Admin**- Admin
- Posts : 131

Join date : 2011-08-16

## Re: Two Sorted Array, merge them

Why you put this topic here?

Admin wrote:public int[] Merge(int[] a1, int[] a2){

int len1=a1.length()-1;

int len2=a2.length()-1;

int len=len1+len2+1;

int[] arr=new int[len];

while(len1>=0&&len2>=0){

if(a1[len1]>a2[len2])

arr[len--]=a1[len1--];

else

arr[len--]=a1[len2--];

}

if(a1.length()>a2.length()){

while(len1>0){

arr[len--]=a1[len1--];

}

}

else{

while(len2>0){

arr[len--]=a2[len2--];

}

}

return arr;

}

**viterbi**- Posts : 32

Join date : 2011-09-03

## Re: Two Sorted Array, merge them

The code is to merge two sorted array. Anything wrong here?

**Admin**- Admin
- Posts : 131

Join date : 2011-08-16

## Re: Two Sorted Array, merge them

I mean most questions in this folder are knowledge-based questions. Then there's one algorithm question, looks strange.

Anyway, I think there should be some folders for algorithm, I have "Sorting" (which you already have), "recursive", "dynamic programming", "bit operation", "binary search", "random algorithm" and "other algorithm" on my computer. I hope you could also create these forums.

Anyway, I think there should be some folders for algorithm, I have "Sorting" (which you already have), "recursive", "dynamic programming", "bit operation", "binary search", "random algorithm" and "other algorithm" on my computer. I hope you could also create these forums.

**viterbi**- Posts : 32

Join date : 2011-09-03

## Re: Two Sorted Array, merge them

I already created some topics as what you listed. By the way, what is random algorithm?

viterbi wrote:I mean most questions in this folder are knowledge-based questions. Then there's one algorithm question, looks strange.

Anyway, I think there should be some folders for algorithm, I have "Sorting" (which you already have), "recursive", "dynamic programming", "bit operation", "binary search", "random algorithm" and "other algorithm" on my computer. I hope you could also create these forums.

**Admin**- Admin
- Posts : 131

Join date : 2011-08-16

## Re: Two Sorted Array, merge them

Random algorithm is the name I gave It includes the algorithms that deal with randomness, which includes the classic algorithms: Fisher-Yates shuffle, reservoir sampling, and some others.

Admin wrote:I already created some topics as what you listed. By the way, what is random algorithm?viterbi wrote:I mean most questions in this folder are knowledge-based questions. Then there's one algorithm question, looks strange.

Anyway, I think there should be some folders for algorithm, I have "Sorting" (which you already have), "recursive", "dynamic programming", "bit operation", "binary search", "random algorithm" and "other algorithm" on my computer. I hope you could also create these forums.

**viterbi**- Posts : 32

Join date : 2011-09-03

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