C Programming : সি প্রোগ্রামিং

Write a program to generate a Fibonacci Series. Use function. Hints: First few numbers of series are 0, 1, 1, 2, 3, 5, 8 etc, Except first two numbers in series every other numbers are the sum of two previous numbers. For example 5 = 2 + 3 (addition of 2 & 3). Source Code in C: #include<stdio.h> void fibonacci(int m, int n); int main( ) {      int a=0, b=1;      printf("Fibonacci series is :\n\n");      fibonacci(a, b); } void fibonacci(int m, int n) {       int sum=0, i;       for(i=0; i<=50; i++)        {           sum=m+n;           printf ("  %d",sum);           m=n;           n=sum;        } }

Write a program to check Number which is dividable by 9 or not. Use function to call and return the value.   Source Code in C: #include <stdio.h> void check_divisible(int); int main( ) {      int n, result;      printf ("\n Enter the number to check");      scanf ("%d", &n);      result= check_divisible(n);      return 0; } void check_divisible(int a) {      int i=9;      if (a%9 = =0)            printf ("\n This is divisible by 9");      else           printf ("\n This is not divisible by 9"); }

Write a program to find the area of a Circle. Use function to find area where area = pi * r ^ 2 ( r means radius, ^ means power and the value of pi is 3.144) . Source Code in C: #include<stdio.h> float checkArea(float radius) {       float area;       area=3.14159*(radius*radius) ;       return area; } int main() {       float r, area_of_circle=0;       printf ("\nEnter Radius: ");       scanf ("%f", &r);       area_of_circle= checkArea(r) ;       printf ("\nArea is: %f", area_of_circle); }