C Exercises: Reverse a given array of integers and length 5
C-programming basic algorithm: Exercise-38 with Solution
Write a C program to reverse a given array of integers and length 5.
C Code:
#include <stdio.h>
#include <stdlib.h>
int main(void){
int arr_size;
int a1[] = {10, 20, 30, 40, 50};
arr_size = sizeof(a1)/sizeof(a1[0]);
printf("Elements in original array are: ");
print_array(a1, arr_size);
int result[] = { a1[4], a1[3], a1[2], a1[1], a1[0] };
arr_size = sizeof(result)/sizeof(result[0]);
printf("\nElements in reverse array are: ");
print_array(result, arr_size);
}
print_array(int parray[], int size)
{
int i;
for( i=0; i<size-1; i++)
{
printf("%d, ", parray[i]);
}
printf("%d ", parray[i]);
printf("\n");
}
Sample Output:
Elements in original array are: 10, 20, 30, 40, 50 Elements in reverse array are: 50, 40, 30, 20, 10
Pictorial Presentation:
Flowchart:
C Programming Code Editor:
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Previous: Write a C program to rotate the elements of a given array of integers (length 4 )in left direction and return the new array.
Next: Write a C program to create a new array containing the middle elements from the two given arrays of integers, each length 5.
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C Programming: Tips of the Day
Static variable inside of a function in C
The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().
The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.
The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().
Ref : https://bit.ly/3fOq7XP
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