Merge pull request #128 from kumarvivek8/patch-9

Create findingupperboundandlowerbound.cpp

Author: sunnyshahabuddin

findingupperboundandlowerbound.cpp

@@ -0,0 +1,28 @@
+#include<iostream>
+#include<algorithm>
+using namespace std;
+int main()
+{
+	long long int n;
+	cin>>n;
+	long long int a[n];
+	for(int i=0;i<n;i++)
+	{
+		cin>>a[i];
+	}
+	int q;
+	cin>>q;
+	while(q--)
+	{
+		long long int key;
+		cin>>key;
+		if(binary_search(a,a+n,key))
+		{
+			int lb=lower_bound(a,a+n,key)-a;
+			int ub=upper_bound(a,a+n,key)-a-1;
+			cout<<lb<<" "<<ub<<" "<<endl;
+		}
+		else
+		cout<<"-1"<<" "<<"-1"<<endl;
+	}
+}