https://docs.vultr.com/cpp/sta....ndard-library/cmath/



std::remainder() is a function in C++'s <cmath> library that computes the remainder of division, but unlike % (modulo) or fmod(), it returns the remainder closest to zero.

Syntax:
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double remainder(double x, double y);
float remainder(float x, float y);
long double remainder(long double x, long double y);
x → The dividend (numerator).
y → The divisor (denominator).
Returns → The remainder of x / y, with the result closest to zero.

https://docs.vultr.com/cpp/sta....ndard-library/cmath/



modf() is a function in C++'s <cmath> library that splits a floating-point number into its integer and fractional parts.

Syntax:
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double modf(double x, double* int_part);
float modf(float x, float* int_part);
long double modf(long double x, long double* int_part);
x → The floating-point number to split.
int_part → A pointer where the integer part will be stored.
Returns → The fractional part of x

https://docs.vultr.com/cpp/sta....ndard-library/ctime/



c++ time difference In C++, you can calculate the time difference using both <ctime> (C-style) and <chrono> (modern C++11+) libraries.

1️⃣ Using <ctime> (C-Style)
The <ctime> library provides std::difftime() to compute the time difference in seconds.

Example: Using std::difftime()
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