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advanced_binary_search.cpp
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124 lines (111 loc) · 1.91 KB
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#include <bits/stdc++.h>
using namespace std;
/*
BINARY SEARCH
int main(){
int n, k;
cin>>n>>k;
vector <int> arr(n);
for(int i=0; i<n;i++){
cin>>arr[i];
}
int ele;
while(k--){
cin>>ele;
int start=0, end=n;
int mid;
int flag=0;
while(start<=end){
mid=(start+end)/2;
if(arr[mid]==ele){
cout<<"YES"<<endl;
flag=1;
break;
}
else if(arr[mid]<ele){
start=mid+1;
}
else{
end=mid-1;
}
}
if(flag==0) cout<<"NO"<<endl;
}
return 0;
}
*/
/*
CLOSEST TO LEFT ELEMENT
int left_bin_search(int q, int arr[], int n)
{
int left = -1, right = n, mid;
while ((left+1) < right)
{
mid = (left + right) / 2;
if (arr[mid] <= q)
{
left = mid;
}
else
{
right = mid;
}
}
return left+1;
}
int main(){
int n,k;
cin>>n>>k;
int arr[n];
for(int i=0; i<n;i++){
cin>>arr[i];
}
long long int q;
while(k--){
cin>>q;
cout << left_bin_search(q, arr, n)<<endl;
}
return 0;
}
*/
/*
//CLOSEST TO RIGHT ELEMENT
int right_bin_search(int q, int arr[], int n)
{
int left = -1, right = n, mid;
while ((left + 1) < right)
{
mid = (left + right) / 2;
if (arr[mid] < q)
{
left = mid;
}
else
{
right = mid;
}
}
return right + 1;
}
int main()
{
int n, k;
cin >> n >> k;
int arr[n];
for (int i = 0; i < n; i++)
{
cin >> arr[i];
}
long long int q;
while (k--)
{
cin >> q;
cout << right_bin_search(q, arr, n) << endl;
}
return 0;
}
*/
//FAST QUERIES
int main(){
return 0;
}