pwc348 solution in go

2 files changed, 207 insertions, 0 deletions

diff --git a/challenge-348/pokgopun/go/ch-1.go b/challenge-348/pokgopun/go/ch-1.go
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+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-348/
+/*#
+
+Task 1: String Alike
+
+Submitted by: [49]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a string of even length.
+
+   Write a script to find if the given string split into two halves of
+   equal lengths and they both have same number of vowels.
+
+Example 1
+
+Input: $str = "textbook"
+Output: false
+
+1st half: "text" (1 vowel)
+2nd half: "book" (2 vowels)
+
+Example 2
+
+Input: $str = "book"
+Output: true
+
+1st half: "bo" (1 vowel)
+2nd half: "ok" (1 vowel)
+
+Example 3
+
+Input: $str = "AbCdEfGh"
+Output: true
+
+1st half: "AbCd" (1 vowel)
+2nd half: "EfGh" (1 vowel)
+
+Example 4
+
+Input: $str = "rhythmmyth"
+Output: false
+
+1st half: "rhyth" (0 vowel)
+2nd half: "mmyth" (0 vowel)
+
+Example 5
+
+Input: $str = "UmpireeAudio"
+Output: false
+
+1st half: "Umpire" (3 vowels)
+2nd half: "eAudio" (5 vowels)
+
+Task 2: Covert Time
+#*/
+//# solution by pokgopun@gmail.com
+
+package main
+
+import (
+	"io"
+	"os"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func sa(str string) bool {
+	h := len(str) / 2
+	var cnt [2]int
+	d := 'a' - 'A'
+	for i, rs := range []string{str[:h], str[h:]} {
+		for _, r := range rs {
+			if r < 'a' {
+				r += d
+			}
+			switch r {
+			case 'a', 'e', 'i', 'o', 'u':
+				cnt[i]++
+			}
+		}
+	}
+	return cnt[0] > 0 && cnt[0] == cnt[1]
+}
+
+func main() {
+	for _, data := range []struct {
+		input  string
+		output bool
+	}{
+		{"textbook", false},
+		{"book", true},
+		{"AbCdEfGh", true},
+		{"rhythmmyth", false},
+		{"UmpireeAudio", false},
+	} {
+		io.WriteString(os.Stdout, cmp.Diff(sa(data.input), data.output)) // blank if ok, otherwise show the difference
+	}
+}
diff --git a/challenge-348/pokgopun/go/ch-2.go b/challenge-348/pokgopun/go/ch-2.go
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+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-348/
+/*#
+
+Task 2: Covert Time
+
+Submitted by: [50]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given two strings, $source and $target, containing time in
+   24-hour time form.
+
+   Write a script to convert the source into target by performing one of
+   the following operations:
+1. Add  1 minute
+2. Add  5 minutes
+3. Add 15 minutes
+4. Add 60 minutes
+
+   Find the total operations needed to get to the target.
+
+Example 1
+
+Input: $source = "02:30"
+       $target = "02:45"
+Output: 1
+
+Just one operation i.e. "Add 15 minutes".
+
+Example 2
+
+Input: $source = "11:55"
+       $target = "12:15"
+Output: 2
+
+Two operations i.e. "Add 15 minutes" followed by "Add 5 minutes".
+
+Example 3
+
+Input: $source = "09:00"
+       $target = "13:00"
+Output: 4
+
+Four operations of "Add 60 minutes".
+
+Example 4
+
+Input: $source = "23:45"
+       $target = "00:30"
+Output: 3
+
+Three operations of "Add 15 minutes".
+
+Example 5
+
+Input: $source = "14:20"
+       $target = "15:25"
+Output: 2
+
+Two operations, one "Add 60 minutes" and one "Add 5 minutes"
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 23rd November
+   2025.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+#*/
+//# solution by pokgopun@gmail.com
+
+package main
+
+import (
+	"io"
+	"os"
+	"time"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func ct(source, target string) int {
+	tmpl := "15:04"
+	t1, _ := time.Parse(tmpl, source)
+	t2, _ := time.Parse(tmpl, target)
+	if t2.Before(t1) {
+		t2 = t2.AddDate(0, 0, 1)
+	}
+	m := int(t2.Sub(t1).Minutes())
+	c := 0
+	for _, n := range []int{60, 15, 5} {
+		c += m / n
+		m = m % n
+	}
+	return c + m
+}
+
+func main() {
+	for _, data := range []struct {
+		source, target string
+		output         int
+	}{
+		{"02:30", "02:45", 1},
+		{"11:55", "12:15", 2},
+		{"09:00", "13:00", 4},
+		{"23:45", "00:30", 3},
+		{"14:20", "15:25", 2},
+	} {
+		io.WriteString(os.Stdout, cmp.Diff(ct(data.source, data.target), data.output)) // blank if ok, otherwise show the difference
+	}
+}