To be added later

number.cpp

#include "iostream"
using namespace std;
void find_next(int num[], int n);
int main()
{
  int n;
	printf("enter n\n");
	scanf("%d",&n);
    printf("enter %d-digit no.\n",n);
    int num[n];
    for(int i =0;i<n;i++)
    {
    scanf("%d",&num[i]);
    }
    int i=n-1;
    if(n!=1)
    find_next(num,n,i);
    else
    find_next(num,n,i-1);
}

void find_next(int num[], int n,i)
{ 
    for(int j=i-1;j>0;j--)
    {
    	if(num[i]>num[j] && num[j]!=n)
    		swap(num[i],num[j]);
    	    arrange_inc(num,j+1);
    	    break;
    	if(num[j]==n && num[j-1]>num[i])
    		swap(num[j],num[j-1]);
            break;
    }
    return;
}