Data commit

Task/Arithmetic-Integer/Go/arithmetic-integer-1.go

@@ -0,0 +1,15 @@
+package main
+
+import "fmt"
+
+func main() {
+    var a, b int
+    fmt.Print("enter two integers: ")
+    fmt.Scanln(&a, &b)
+    fmt.Printf("%d + %d = %d\n", a, b, a+b)
+    fmt.Printf("%d - %d = %d\n", a, b, a-b)
+    fmt.Printf("%d * %d = %d\n", a, b, a*b)
+    fmt.Printf("%d / %d = %d\n", a, b, a/b)  // truncates towards 0
+    fmt.Printf("%d %% %d = %d\n", a, b, a%b) // same sign as first operand
+    // no exponentiation operator
+}

Task/Arithmetic-Integer/Go/arithmetic-integer-2.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+    "fmt"
+    "math/big"
+)
+
+func main() {
+    var a, b, c big.Int
+    fmt.Print("enter two integers: ")
+    fmt.Scan(&a, &b)
+    fmt.Printf("%d + %d = %d\n", &a, &b, c.Add(&a, &b))
+    fmt.Printf("%d - %d = %d\n", &a, &b, c.Sub(&a, &b))
+    fmt.Printf("%d * %d = %d\n", &a, &b, c.Mul(&a, &b))
+
+    // Quo, Rem functions work like Go operators on int:
+    // quo truncates toward 0,
+    // and a non-zero rem has the same sign as the first operand.
+    fmt.Printf("%d quo %d = %d\n", &a, &b, c.Quo(&a, &b))
+    fmt.Printf("%d rem %d = %d\n", &a, &b, c.Rem(&a, &b))
+
+    // Div, Mod functions do Euclidean division:
+    // the result m = a mod b is always non-negative,
+    // and for d = a div b, the results d and m give d*y + m = x.
+    fmt.Printf("%d div %d = %d\n", &a, &b, c.Div(&a, &b))
+    fmt.Printf("%d mod %d = %d\n", &a, &b, c.Mod(&a, &b))
+
+    // as with int, no exponentiation operator
+}