days 13,14,15

15/15.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+// go run 15.go inputA inputB
+
+func main() {
+
+	genA,_ := strconv.Atoi(os.Args[1])
+	genB,_ := strconv.Atoi(os.Args[2])
+
+	rounds1 := 40000000
+	rounds2 := 5000000
+
+	fmt.Println(Calc(genA, genB, 1,1,rounds1))
+	fmt.Println(Calc(genA, genB, 4,8,rounds2))
+}
+
+
+func Calc (genA int, genB int, modA int, modB int, rounds int) int {
+	genAFactor := 16807
+	genBFactor := 48271
+	div := 2147483647
+	judge := 0
+
+	for i := 0; i < rounds; i++ {
+
+		for {
+			genA = (genA * genAFactor) % div
+			if genA % modA == 0 {
+				break
+			}
+		}
+
+		for {
+			genB = (genB * genBFactor) % div
+			if genB % modB == 0 {
+				break
+			}
+		}
+
+		tA := genA
+		tA = tA % 65536
+
+		tB := genB
+		tB = tB % 65536
+
+		if tA == tB {
+			judge++
+		}
+	}
+	return judge
+}