1. Define a structure in C. Write the syntax for structure declaration with an example. In C, a structure is a user-defined data type that can hold different types of data. A structure is defined using the struct keyword. Syntax for structure declaration: struct structure_name { data_type member1; data_type member2; // More members }; Example: #include <stdio.h> // Defining a structure to store student details struct Student { int roll_no; char name[50]; float marks; }; int main() { // Declaring and initializing a structure variable struct Student student1 = {101, "John Doe", 85.5}; // Displaying the student's details printf("Roll Number: %d\n", student1.roll_no); printf("Name: %s\n", student1.name); printf("Marks: %.2f\n", student1.marks); return 0; } 2. Declare the C structures for the following scenario: (i) College contains the following fields: College code (...
Blockchain: Introduction to Blockchain: Blockchain is a decentralized, distributed digital ledger technology that records transactions across many computers so that the recorded data cannot be altered retroactively. It was first conceptualized as the underlying technology behind Bitcoin, but it has since evolved to support various use cases beyond cryptocurrencies. Overview of Blockchain: A blockchain consists of blocks (groups of transactions) linked in a chain in a chronological order. Each block contains a timestamp, transaction data, and a reference to the previous block (the hash). Blockchain operates in a peer-to-peer network, where each participant holds a copy of the entire blockchain. Transactions are verified using consensus mechanisms like Proof of Work (PoW) or Proof of Stake (PoS). The decentralized nature of blockchain ensures transparency, security, and immutability. Features of Blockchain: Decentralization: No single entity has control over the block...