Jun 6, 2023
diff --git a/challenge-1.md b/challenge-1.md
 # Data Packet Corruption Detection
 * In a Wireless communciation device, multiple data packets are transferred over the air.
 * It is possible that data might get corrupted or lost before it reaches the destination.
 * Create a method to identify if a data packet is corrupted
 * Assume below format for the data packet
 #include <stdint.h>

 ```
 #define MAX_PACKET_DATA_LENGTH (50)

 typedef struct data_packet_t{
 typedef struct data_packet_t{
    uint8_t id;
    uint8_t data_length;
    uint8_t data[MAX_PACKET_DATA_LENGTH];
    uint16_t crc;
 }data_packet_t;
 }data_packet_t;

 ```
 # FAQ's
 * Links to Discussions
 // Function to calculate the CRC
 uint16_t calculateCRC(const uint8_t* data, size_t length) {
    uint16_t crc = 0xFFFF; // Initial CRC value

    for (size_t i = 0; i < length; i++) {
        crc ^= data[i];

        for (int j = 0; j < 8; j++) {
            if (crc & 0x0001) {
                crc >>= 1;
                crc ^= 0xA001; // CRC-16 polynomial
            } else {
                crc >>= 1;
            }
        }
    }

    return crc;
 }

 // Function to check if a data packet is corrupted
 int isPacketCorrupted(const data_packet_t* packet) {
    uint16_t calculatedCRC = calculateCRC(packet->data, packet->data_length);

    return (calculatedCRC != packet->crc);
 }
Original file line number	Diff line number	Diff line change
		@@ -1,19 +1,37 @@
		# Data Packet Corruption Detection
		* In a Wireless communciation device, multiple data packets are transferred over the air.
		* It is possible that data might get corrupted or lost before it reaches the destination.
		* Create a method to identify if a data packet is corrupted
		* Assume below format for the data packet
		#include <stdint.h>

		```
		#define MAX_PACKET_DATA_LENGTH (50)

		typedef struct data_packet_t{
		typedef struct data_packet_t{
		uint8_t id;
		uint8_t data_length;
		uint8_t data[MAX_PACKET_DATA_LENGTH];
		uint16_t crc;
		}data_packet_t;
		}data_packet_t;

		```
		# FAQ's
		* Links to Discussions
		// Function to calculate the CRC
		uint16_t calculateCRC(const uint8_t* data, size_t length) {
		uint16_t crc = 0xFFFF; // Initial CRC value

		for (size_t i = 0; i < length; i++) {
		crc ^= data[i];

		for (int j = 0; j < 8; j++) {
		if (crc & 0x0001) {
		crc >>= 1;
		crc ^= 0xA001; // CRC-16 polynomial
		} else {
		crc >>= 1;
		}
		}
		}

		return crc;
		}

		// Function to check if a data packet is corrupted
		int isPacketCorrupted(const data_packet_t* packet) {
		uint16_t calculatedCRC = calculateCRC(packet->data, packet->data_length);

		return (calculatedCRC != packet->crc);
		}