static void Main()
{
System.Console.WriteLine($"Test of subfunction: {(ChamperConstTest.CurrentNumberTest()==true?"done":"error")}");
System.Console.WriteLine($"Test of main func: {(ChamperConstTest.FuncTest()==true?"done":"error")}");
int result = ChamperConst.ChamperConstFunc(new int[] { 1, 10, 100, 1000, 10000, 100000, 1000000 });
System.Console.WriteLine($"Result of site`s task: {result}");
}
static public bool FuncTest()
{
bool Check = true;
Check = Check && ChamperConst.ChamperConstFunc(new int[] { 4 }).Equals(4);
Check = Check && ChamperConst.ChamperConstFunc(new int[] { 2, 3 }).Equals(6);
Check = Check && ChamperConst.ChamperConstFunc(new int[] { 10, 11 }).Equals(0);
Check = Check && ChamperConst.ChamperConstFunc(new int[] { 10, 12, 13 }).Equals(1);
Check = Check && ChamperConst.ChamperConstFunc(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }).Equals(362880);
return(Check);
}
static public bool CurrentNumberTest()
{
bool Check = true;
Check = Check && (ChamperConst.CurrentNumber(1) == 1);
Check = Check && (ChamperConst.CurrentNumber(9) == 9);
Check = Check && (ChamperConst.CurrentNumber(10) == 1);
Check = Check && (ChamperConst.CurrentNumber(11) == 0);
Check = Check && (ChamperConst.CurrentNumber(12) == 1);
Check = Check && (ChamperConst.CurrentNumber(13) == 1);
Check = Check && (ChamperConst.CurrentNumber(14) == 1);
Check = Check && (ChamperConst.CurrentNumber(15) == 2);
return(Check);
}