RosettaCodeData/Task/Curzon-numbers/XPL0/curzon-numbers.xpl0
2023-07-01 13:44:08 -04:00

36 lines
733 B
Text

func ModPow(Base, Exp, Mod);
int Base, Exp, Mod, Result;
[if Mod = 1 then return 0;
Result:= 1;
Base:= rem(Base/Mod);
while Exp > 0 do
[if (Exp&1) = 1 then Result:= rem((Result*Base)/Mod);
Base:= rem((Base*Base) / Mod);
Exp:= Exp >> 1;
];
return Result;
];
func IsCurzon(N, K);
int N, K, R;
[R:= K * N;
return ModPow(K, N, R+1) = R;
];
int K, N, Count;
[K:= 2;
Format(5, 0);
while K <= 10 do
[Text(0, "Curzon numbers with base "); IntOut(0, K); CrLf(0);
N:= 1; Count:= 0;
while Count < 50 do
[if IsCurzon(N, K) then
[RlOut(0, float(N));
Count:= Count+1;
if rem(Count/10) = 0 then CrLf(0);
];
N:= N+1;
];
K:= K+2;
];
]