public async Task<IEnumerable<NumberChain>> SolveMany(NumberChainProblem problem)
{
var result = problem.Result;
var numbers = problem.Numbers;
if (numbers.Length < 2)
throw new NotSupportedException("A minimum of two numbers required to operate on");
var chains = GenerateChains(numbers);
var solutions = chains.Where(x => x.Result == result && _validator.IsValid(x)).ToList();
if (solutions == null || !solutions.Any())
throw new NotSupportedException("No result possible");
return await Task.FromResult(solutions);
}
public async Task<NumberChain> Solve(NumberChainProblem problem)
{
var result = problem.Result;
var numbers = problem.Numbers;
if (numbers.Length < 2)
throw new NotSupportedException("A minimum of two numbers required to operate on");
var chains = GenerateChains(numbers);
var solution = chains.FirstOrDefault(x => x.Result == result && _validator.IsValid(x));
if (solution == null)
throw new NotSupportedException("No result possible");
return await Task.FromResult(solution);
}