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Task/Modular-exponentiation/Sidef/modular-exponentiation-1.sidef

@@ -0,0 +1,4 @@
+say expmod(
+    2988348162058574136915891421498819466320163312926952423791023078876139,
+    2351399303373464486466122544523690094744975233415544072992656881240319,
+    10**40)

Task/Modular-exponentiation/Sidef/modular-exponentiation-2.sidef

@@ -0,0 +1,8 @@
+func expmod(a, b, n) {
+    var c = 1
+    do {
+        (c *= a) %= n if b.is_odd
+        (a *= a) %= n
+    } while (b //= 2)
+    c
+}