“To become a master, it is not achieved overnight, unless you are a natural talent in martial arts, but such people are… one in ten thousand”
This principle also applies to learning C language. There are indeed few people with exceptional talent in programming; most of us need to accumulate knowledge day by day to progress from a C language novice to a master.
So how do we learn?Of course, by practicing a C language problem every day!
Author
Yan Xiaolin
Working during the day and dreaming at night. I have stories, do you have wine?
Example 22: Implementing an array in C language to assign values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 in order, then output them in reverse order.
Problem-solving approach: Obviously, we need to define an array of length 10. Since the assigned values are integers, the array can be defined as an integer type. The values to be assigned are from 0 to 9, which follow a certain pattern and can be assigned using a loop.
Source code demonstration:
#include <stdio.h> // Header file
int main() // Main function
{
int a[10]; // Define an integer array of size 10
int i; // Define an integer variable
printf("Original order:");
for(i=0;i<10;i++) // Assign values to a[0]~a[9] as 0~9
{
a[i]=i; // Assign the value of i to array a[i]
printf("%d ",a[i]); // Output a[i], separating each number with a space
}
printf("\n"); // New line
printf("Reversed order:");
for(i=9;i>=0;i--) // Output in reverse order
{
printf("%d ",a[i]);
}
printf("\n"); // New line
return 0; // Function return value is 0
}
The compilation results are as follows:
Original order: 0 1 2 3 4 5 6 7 8 9
Reversed order: 9 8 7 6 5 4 3 2 1 0
--------------------------------
Process exited after 2.526 seconds with return value 0
Press any key to continue...
Note: The index of array elements starts from 0. If you define the array as int a[10], the maximum index value is 9; there is no array element a[10].
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