https://docs.vultr.com/clang/s....tandard-library/math


round up in c In C, you can round up a number using the ceil() function from the math.h library. It returns the smallest integer greater than or equal to the given number.

Example in C:
c
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#include <stdio.h>
#include <math.h>

int main() {
double num = 4.3;
double roundedUp = ceil(num);
printf("Rounded up: %.0f
", roundedUp); // Output: 5
return 0;
}
Here, ceil(4.3) returns 5 because it always rounds up to the next whole number