Added Binary to Gray code

conversions/binary_to_gray.c

@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <math.h>
+
+// Function to convert binary to decimal
+int binaryToDecimal(long long binary) {
+    int decimal = 0, i = 0, remainder;
+    while (binary != 0) {
+        remainder = binary % 10;
+        binary /= 10;
+        decimal += remainder * pow(2, i);
+        ++i;
+    }
+    return decimal;
+}
+
+// Function to convert decimal to binary
+long long decimalToBinary(int decimal) {
+    long long binary = 0;
+    int remainder, i = 1;
+
+    while (decimal != 0) {
+        remainder = decimal % 2;
+        decimal /= 2;
+        binary += remainder * i;
+        i *= 10;
+    }
+    return binary;
+}
+
+// Function to convert binary to Gray code
+long long binaryToGray(long long binary) {
+    // Convert binary to decimal first
+    int decimal = binaryToDecimal(binary);
+
+    // Perform XOR between decimal and decimal right-shifted by 1
+    int grayDecimal = decimal ^ (decimal >> 1);
+
+    // Convert Gray code back to binary representation for display
+    return decimalToBinary(grayDecimal);
+}
+
+int main() {
+    long long binary;
+
+    printf("Enter a binary number: ");
+    scanf("%lld", &binary);
+
+    // Validate input
+    long long temp = binary;
+    while (temp > 0) {
+        if (temp % 10 > 1) {
+            printf("❌ Invalid input! Please enter only 0s and 1s.\n");
+            return 0;
+        }
+        temp /= 10;