From a9ff184931164670f05fc302c3b646195d866f16 Mon Sep 17 00:00:00 2001
From: chayan das <110921638+Chayandas07@users.noreply.github.com>
Date: Sat, 19 Oct 2024 21:35:56 +0530
Subject: [PATCH] Create 1545. Find Kth Bit in Nth Binary String

---
 1545. Find Kth Bit in Nth Binary String | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 1545. Find Kth Bit in Nth Binary String

diff --git a/1545. Find Kth Bit in Nth Binary String b/1545. Find Kth Bit in Nth Binary String
new file mode 100644
index 0000000..eb6d331
--- /dev/null
+++ b/1545. Find Kth Bit in Nth Binary String	
@@ -0,0 +1,25 @@
+class Solution {
+public:
+    char solve(int k,int n, vector<int> & arr){
+        if(k==0)return '0';
+        if(k==1)return '1';
+        int i=0;
+        for(i=0;i<n-1;i++){
+            if( arr[i]>k)break;
+        }
+        i--;
+        if(k==arr[i])return '1';
+        char rec=solve(arr[i]-(k-arr[i]),n,arr);
+        if(rec=='0')return '1';
+        return '0';
+    }
+    char findKthBit(int n, int k) {
+        int temp=0;
+        vector<int> arr;
+        for(int i=0;i< n;i++){
+            arr.push_back(2*temp+1);
+            temp=arr.back();
+        }
+        return solve(k-1,n,arr);
+    }
+};