C Programming Examples.

• Swap function: difference between pass by value and pass by reference.

• Fibonacci series. Two implementation: for loop and recursive.
• loop:
  int fibo_loop (int n) {
      int j = 1;
      int k = 1;
      int sum;
      for (int i = 2; i < n; i++) {
          sum = j + k;
          j = k;
          k = sum;
      }
      return sum;
  }
• recursive:
  int fibo_recur (int n) {
      if (n<=2) {
          return 1;
      } else {
          return fibo_recur (n-1) + fibo_recur (n-2);
      }
  }

• The usage of constant, constant functions

• Detect sequence pattern in FSM

• What is the purpose of "volatile" flag in C programming language?