simplify a bit

cmd/crt.go

@@ -95,14 +95,15 @@ func crt(cmd *cobra.Command, args []string) {
 			log.Fatal("invalid input " + remainders[i])
 		}
 
-		if i != 0 {
-			x, N := crtSolve(a1, n1, a2, n2)
-			n1.Set(N)
-			a1.Set(x)
-		} else {
+		if i == 0 {
 			a1.Set(a2)
 			n1.Set(n2)
+			continue
 		}
+
+		x, N := crtSolve(a1, n1, a2, n2)
+		a1.Set(x)
+		n1.Set(N)
 	}
 
 	fmt.Println(a1)