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Copy path45insertfloorceil.cpp
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45insertfloorceil.cpp
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// //search insert position
// #include <bits/stdc++.h>
// using namespace std;
// int main()
// {
// int n;
// cout << "Enter the size: ";
// cin >> n;
// // Declare the array
// int arr[n];
// cout << "Enter the elements of the array:\n";
// for (int i = 0; i < n; i++)
// {
// cin >> arr[i]; // Input the array elements
// }
// int target;
// cout<<"enter the target element"<<endl;
// cin>>target;
// int ans=n;
// int low=0;
// int high=n-1;
// while(low<=high){
// int mid=(low+high)/2;
// if(arr[mid]>=target){
// high=mid-1;
// ans=mid;
// }
// else{
// low=mid+1;
// }
// }
// cout<<ans;
// return 0;
// }
//floor ceil
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n;
cout << "Enter the size: ";
cin >> n;
// Declare the array
int arr[n];
cout << "Enter the elements of the array:\n";
for (int i = 0; i < n; i++)
{
cin >> arr[i]; // Input the array elements
}
int target;
cout<<"enter the target element"<<endl;
cin>>target;
int ans=n;
int low=0;
int high=n-1;
while(low<=high){
int mid=(low+high)/2;
if(arr[mid]<=target){
low=mid+1;
ans=arr[mid];//we need the ans not the index
}
else{
high=mid-1;
}
}
return 0;
}