Create binary_to_decimal.cpp

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;
+}