From 776832b84b4e584633f6ad55753c39ca99cf59d8 Mon Sep 17 00:00:00 2001
From: Prakhar Dubey <prakhar.dub@gmail.com>
Date: Wed, 28 Oct 2020 13:31:19 +0530
Subject: [PATCH] Create binary_to_decimal.cpp

hello, I am new to open source, trying to contribute, and i am participating in hactoberfest 2020, i'd love if you merge my pull request and label it as hacktoberfest-accepted,
---
 Conversions/C:C++/binary_to_decimal.cpp | 32 +++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Conversions/C:C++/binary_to_decimal.cpp

diff --git a/Conversions/C:C++/binary_to_decimal.cpp b/Conversions/C:C++/binary_to_decimal.cpp
new file mode 100644
index 00000000..587e66c6
--- /dev/null
+++ b/Conversions/C:C++/binary_to_decimal.cpp
@@ -0,0 +1,32 @@
+#include <iostream>
+using namespace std;
+ 
+// Function to convert binary to decimal
+int binaryToDecimal(int n)
+{
+    int num = n;
+    int dec_value = 0;
+ 
+    // Initializing base value to 1, i.e 2^0
+    int base = 1;
+ 
+    int temp = num;
+    while (temp) {
+        int last_digit = temp % 10;
+        temp = temp / 10;
+ 
+        dec_value += last_digit * base;
+ 
+        base = base * 2;
+    }
+ 
+    return dec_value;
+}
+ 
+// Driver program to test above function
+int main()
+{
+    int num = 10101001;
+ 
+    cout << binaryToDecimal(num) << endl;
+}