Generate parentheses that are valid.Why is this code not getting accepted?

#1

#include<bits/stdc++.h>
using namespace std;
void generateparentheses(int n,int i,int oc,int cc,char output)
{
//base case
if(i==2n)
{
output[i]=’\0’;
cout<<output<<endl;
return;
}

    if(oc<n)
    {
        output[i]='(';
        generateparentheses(n,i+1,oc+1,cc,output);
    }
    if(cc<oc)
    {
        output[i]=')';
        generateparentheses(n,i+1,oc,cc+1,output);
    }
    return;

}
int main()
{

int n;
cin>>n;
char output[1000];
int i=0;
generateparentheses(n,i,0,0,output);

}

#2

@Kshitij-Taneja-2315806971864318 the order of sample output does not match your current output. Modify your code such that you first try to place ) and then try to place ( to match the sample output.

#3

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