testsAndMisc/CPP/miscelanious/tierListConverter/tierListConverter.cpp

#include <iostream>
#include <string>
#include <vector>

const std::vector <std::string> TIERS = {"Abhorrent", "Bad", "Mid", "Good", "Top", "God Tier"};
const float TIER_BASE = TIERS.size();

void print(std::string const s)
{
    std::cout << s << std::endl;
}

bool errorUserInput(std::string userInput)
{
	if(userInput.find("/") == std::string::npos)
	{
		print("No '/' was found!");
		return 1;
	}

	size_t positionOfSlash = userInput.find("/");
	std::string nominatorS = userInput.substr(0, positionOfSlash);

	try
	{
		float nominator = stof(nominatorS);
	}catch ( std::invalid_argument )
	{
		print("No number was found before the slash!");
		return 1;
	}

	std::string denominatorS = userInput.substr(positionOfSlash + 1, userInput.length() - 1);

	try
	{
		float denominator = stof(denominatorS);
		if(denominator == 0)
		{
			print("You cannot divide by 0!");
			return 1;
		}
	}catch ( std::invalid_argument )
	{
		print("No number was found after the slash!");
		return 1;
	}

	return 0;
}

std::string convertToTier(float nominator, float denominator)
{
	float fraction = nominator / denominator;
	int tierIndex;
	for(int i = TIER_BASE; i > 0; i--)
	{
		if(fraction >= ( i / TIER_BASE))
		{
			tierIndex = i - 1;
			break;
		}
	}
	if(tierIndex == 0 & fraction > (1.1/10.0)) return TIERS[1];
	return TIERS[tierIndex];
}


int main()
{
	std::string userScore;
	do
	{
		print("Enter your score in a format: numberOne/numberTwo");
		getline(std::cin, userScore);
	}while(errorUserInput(userScore));

	size_t positionOfSlash = userScore.find("/");
	std::string nominatorS = userScore.substr(0, positionOfSlash);


	float nominator = stof(nominatorS);
	std::string denominatorS = userScore.substr(positionOfSlash + 1, userScore.length() - 1);


	float denominator = stof(denominatorS);
	print(convertToTier(nominator, denominator));
	return 0;
}