Half test cases failed, please help!
#include<iostream>
using namespace std;
void targetsumpair(int arr[], int n, int target){
for(int i=0;i<n;i++){
for(int j=i+1;j<n;j++){
if(target==arr[i]+arr[j]){
cout<<arr[i]<<" and "<<arr[j]<<endl;
}
}
}
}
int main(){
int n;
cin>>n;
int arr[100];
for(int i=0;i<n;i++){
cin>>arr[i];
}
int target;
cin>>target;
int left, right;
left=0;
right=n;
while(left<right){
if(arr[left]+arr[right]==target){
cout<<arr[left]<<" and "<<arr[right]<<endl;
left++;
}
else{
right--;
}
}
return 0;
}