C decimal places

To specify the number of decimal places in C, you can use the printf function along with the appropriate format specifier. The format specifier for decimal places is %f for floating-point numbers and %lf for double precision floating-point numbers. Here's an example:

#include <stdio.h>

int main() {
   double num = 3.14159;

   // Print with 2 decimal places
   printf("%.2lf\n", num);

   return 0;
}

This will output 3.14. You can change the number inside the format specifier to specify the desired number of decimal places.