Why am i getting wrong answer

#1

#include
#include <bits/stdc++.h>
using namespace std;
void sum(int n)
{
int a[100],t;
for( int i=0;i<n;i++)
{
cin>>a[i];

}
int s=sizeof(a)/sizeof(a[0]);
sort(a,a+s);
cout<<"Target vaue:";
cin>>t;

int i=0;
int j=n;
while(i<j)	
	{	
		if(a[i]+a[j]>t)
		{
			j--;
		}
		if(a[i]+a[j]<t)
		{
			i++;
			
		}
		if(a[i]+a[j]==t)
		{
			cout<<i<<"and"<<j;
		}
		else
		{
			cout<<"Target sum not acheived";
		}

	}

}
int main() {

int n;
cout<<"No. of element\n";
cin>>n;
sum(n);
return 0;

}

#2

Please save your code on ide.codingblocks.com and then share its link.

#3
#4

You output must match exactly with the sample output given in the question.
Check now:

#5

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