In JavaScript, change these lines from "parseInt" to "toString" in main function or some test cases with big integers won't work (when you start coding, use BigInt() too):

const n = (firstMultipleInput[0]).toString();

const m = (firstMultipleInput[1]).toString();

This logic puzzle is a great way to explore algorithmic problem-solving, just like understanding Privacy Policy Details helps users grasp the structure behind data usage.

return(n*m-1)

For C++, be careful about the funciton input types. If they are the int types, you may need to change them to the long types in order to avoid any overflows.

Python easiest solution: def solve(n, m): return m*n-1 For understanding try comparing the values as bigger and smaller and multiply them.