C Program to find even elements occurrences count in array

C Program to find even elements occurrences count in array

This c program is used to find the number of even elements occurrences in integer array using for loop and if statement.

#include<stdio.h>                                                               
                                                                                
void main()                                                                     
{                                                                               
 int numbers[10], i, n, count=0;                                                
 printf("Enter number of elements:\n");                                         
 scanf("%d", &n);                                                               
                                                                                
 /* Reading array elements */                                                   
 printf("\nInput %d values: ", n);                                              
 for(i=0; i<n; i++)                                                             
 {                                                                              
  scanf("%d", &numbers[i]);                                                     
 }                                                                              
 for(i=0;i<n;i++)                                                               
 {                                                                              
   if(numbers[i]%2==0)                                                          
   {                                                                            
     count = count + 1;                                                         
   }                                                                            
 }                                                                              
 printf("\nEven Elements count in array: %d", count);                           
}    

Output:

$ cc even_elements_occurrence.c 
]$ ./a.out 
Enter number of elements:
5

Input 5 values: 21 34 62 58 11

Even Elements count in array: 3[	

C program to find even elements occurrences count and index's in array

This c program is used to find the number of even elements occurrences and also finds array index location's where even elements are available using for loop and if statements.

#include<stdio.h>                                                               
                                                                                
void main()                                                                     
{                                                                               
 int numbers[10], i, n, count=0, occurrence[10];                                
 printf("Enter number of elements:\n");                                         
 scanf("%d", &n);                                                               
                                                                                
 /* Reading array elements */                                                   
 printf("\nInput %d values: ", n);                                              
 for(i=0; i<n; i++)                                                             
 {                                                                              
  scanf("%d", &numbers[i]);                                                     
  occurrence[i] = 0;                                                            
 }                                                                              
 for(i=0;i<n;i++)                                                               
 {        
   // Checks whether array element is even or not                                                                      
   if(numbers[i]%2==0)                                                          
   {                                                                            
     occurrence[i] = 1;                                                         
     count = count + 1;                                                         
   }                                                                            
 }                                                                              
 printf("\nEven Element count in array: %d", count);                            
 printf("\nOccurrence of even element index's in array: ");                     
 for(i=0;i<n;i++)                                                               
 {                                                                              
   if(occurrence[i]==1)                                                         
   {                                                                            
     printf("%d\t",i);                                                          
   }                                                                            
 }                                                                              
}    

Output:

$ cc even_elements_occurrence.c 
$ ./a.out 
Enter number of elements:
5

Input 5 values: 12 3
45 56 22

Even Element count in array: 3
Occurrence of even element index's in array: 0	3	4