This code may also work .....give any counter examples...
#include<iostream>
using namespace std;
void find_sum(int num,int k,int j,int b);
void display(int i,int j);
#define MAX 8
int res[4]; //array to store
4 numbers..
int arr[MAX] ={2,3,4,1,6,9,8,10};
int main()
{
int b,k,j,num;
cout<<"enter desired number"<<"\n";
cin>>num;
k=0;
j=b=0;
find_sum(num,k,j,b);
return 0;
}
void find_sum(int num,int k,int j,int b)
{
int p,i;
if(k< MAX)
{
if(j==3 && arr[k]== num )
{
res[b]=arr[k];
display(0,b); //FOUND 4 NUMBER ,PRINT THEM
}
else if(j == 3 && arr[k]!=num)
{
for(p=k+1;p<MAX;p++)
{
if(arr[p] == num)
{
res[b] =arr[p];
display(0,b); //FOUND 4 NUMBER ,PRINT THEM
break;
}
}
}
else
{
for(i=k;i<MAX;i++)
{
res[b] =arr[i];
find_sum(num-arr[i],i+1,j+1,b+1);
}
}
}
}
void display(int i,int j)
{
cout<<"\n";
int k;
for(k=0;k<=j;k++)
cout<<" "<<res[k];
}
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