!changed mathutil package to mathy, removed int/string casting from mathy

2016/day14/main_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"strings"
 	"testing"
 
 	"github.com/alexchao26/advent-of-code-go/util"
@@ -20,6 +21,9 @@ func Test_part1(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
+			if strings.Contains(tt.name, "part2") && testing.Short() {
+				t.Skip("Skipping long test, 2016/day14, a lot of MD5 hashes")
+			}
 			if got := oneTimePad(tt.input, tt.part); got != tt.want {
 				t.Errorf("part1() = %v, want %v", got, tt.want)
 			}