C Program to arrange numbers in ascending order

  #include <stdio.h> void sort_numbers_ascending(int number[], int count) { int temp, i, j, k; for (j = 0; j < count; ++j) { for (k = j + 1; k < count; ++k) { if (number[j] > number[k]) { temp = number[j]; number[j] = number[k]; number[k] = temp; } } } printf(“Numbers in ascending order:\n”); … Read more

C program to find the length of a String without using function strlen()

#include <stdio.h> int main() { char str[100],i; printf(“Enter a string: \n”); scanf(“%s”,str); for(i=0; str[i]!=’\0′; ++i); printf(“\nLength of input string: %d”,i); return 0; }  

C Program to calculate Area of Equilatral triangle

#include<stdio.h> #include<math.h> int main() { int triangle_side; float triangle_area, temp_variable; printf(“\nEnter the Side of the triangle:”); scanf(“%d”,&triangle_side); temp_variable = sqrt(3) / 4 ; triangle_area = temp_variable * triangle_side * triangle_side ; printf(“\nArea of Equilateral Triangle is: %f”,triangle_area); return(0); }  

C Program to calculate Area and Circumference of Circle

#include <stdio.h> int main() { int circle_radius; float PI_VALUE=3.14, circle_area, circle_circumf; printf(“\nEnter radius of circle: “); scanf(“%d”,&circle_radius); circle_area = PI_VALUE * circle_radius * circle_radius; printf(“\nArea of circle is: %f”,circle_area); circle_circumf = 2 * PI_VALUE * circle_radius; printf(“\nCircumference of circle is: %f”,circle_circumf); return(0); }  

Quicksort program in C

  #include<stdio.h> void quicksort(int number[25],int first,int last){ int i, j, pivot, temp; if(first<last){ pivot=first; i=first; j=last; while(i<j){ while(number[i]<=number[pivot]&&i<last) i++; while(number[j]>number[pivot]) j–; if(i<j){ temp=number[i]; number[i]=number[j]; number[j]=temp; } } temp=number[pivot]; number[pivot]=number[j]; number[j]=temp; quicksort(number,first,j-1); quicksort(number,j+1,last); } } int main(){ int i, count, number[25]; printf(“How many elements are u going to enter?: “); scanf(“%d”,&count); printf(“Enter %d elements: “, count); … Read more

C Program for bubble sorting

#include<stdio.h> int main(){ int count, temp, i, j, number[30]; printf(“How many numbers are u going to enter?: “); scanf(“%d”,&count); printf(“Enter %d numbers: “,count); for(i=0;i<count;i++) scanf(“%d”,&number[i]); for(i=count-2;i>=0;i–){ for(j=0;j<=i;j++){ if(number[j]>number[j+1]){ temp=number[j]; number[j]=number[j+1]; number[j+1]=temp; } } } printf(“Sorted elements: “); for(i=0;i<count;i++) printf(” %d”,number[i]); return 0; }  

Insertion Sort Program in C

#include<stdio.h> int main(){ int i, j, count, temp, number[25]; printf(“How many numbers u are going to enter?: “); scanf(“%d”,&count); printf(“Enter %d elements: “, count); for(i=0;i<count;i++) scanf(“%d”,&number[i]); for(i=1;i<count;i++){ temp=number[i]; j=i-1; while((temp<number[j])&&(j>=0)){ number[j+1]=number[j]; j=j-1; } number[j+1]=temp; } printf(“Order of Sorted elements: “); for(i=0;i<count;i++) printf(” %d”,number[i]); return 0; }  

Selection Sort Program in C

#include<stdio.h> int main(){ int i, j, count, temp, number[25]; printf(“How many numbers u are going to enter?: “); scanf(“%d”,&count); printf(“Enter %d elements: “, count); for(i=0;i<count;i++) scanf(“%d”,&number[i]); // Logic of selection sort algorithm for(i=0;i<count;i++){ for(j=i+1;j<count;j++){ if(number[i]>number[j]){ temp=number[i]; number[i]=number[j]; number[j]=temp; } } } printf(“Sorted elements: “); for(i=0;i<count;i++) printf(” %d”,number[i]); return 0; }

C Program to check whether the given integer is positive or negative

#include <stdio.h> void main() { int num; printf(“Enter a number: \n”); scanf(“%d”, &num); if (num > 0) printf(“%d is a positive number \n”, num); else if (num < 0) printf(“%d is a negative number \n”, num); else printf(“0 is neither positive nor negative”); }

C Program to Find Quotient and Remainder

  #include <stdio.h> int main(){ int num1, num2, quot, rem; printf(“Enter dividend: “); scanf(“%d”, &num1); printf(“Enter divisor: “); scanf(“%d”, &num2); quot = num1 / num2; rem = num1 % num2; printf(“Quotient is: %d\n”, quot); printf(“Remainder is: %d”, rem); return 0; }