🚀 Programming Example
decimal integer : %d Example using printf and scanf function
decimal integer : %d Example using printf and scanf function
#include <stdio.h>
int main()
{
int a = 0;
scanf("%d", &a); // input is 45
printf("%d\n", a);
return 0;
}
45
45
Press any key to continue . . .
This function take input using standard input (keyboard) and store it in variable accordingly. It returns the number of items successfully read. Formal parameter arg1, agr2, .. must be a pointer
The given code is a C program that reads an integer from the user using the scanf() function and prints it to the console using the printf() function.
Here's how it works:
#include line includes the standard input/output library in the program.main() function is the entry point of the program.a is declared and initialized with the value 0.scanf() function is used to read an integer input from the user and store it in the variable a. The %d format specifier is used to indicate that an integer input is expected.& symbol before a in the scanf() function is used to pass the address of a as an argument. This is necessary because scanf() needs to modify the value of a.printf() function is used to print the value of a to the console using the %d format specifier.\n character is used to insert a newline after the output is printed.return 0; statement terminates the program and returns 0 to the operating system indicating that the program executed successfully.First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.