pwc282 solution in go

2 files changed, 165 insertions, 0 deletions

diff --git a/challenge-282/pokgopun/go/ch-1.go b/challenge-282/pokgopun/go/ch-1.go
new file mode 100644
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+++ b/challenge-282/pokgopun/go/ch-1.go
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+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-282/
+/*#
+
+Task 1: Good Integer
+
+Submitted by: [57]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a positive integer, $int, having 3 or more digits.
+
+   Write a script to return the Good Integer in the given integer or -1 if
+   none found.
+
+     A good integer is exactly three consecutive matching digits.
+
+Example 1
+
+Input: $int = 12344456
+Output: "444"
+
+Example 2
+
+Input: $int = 1233334
+Output: -1
+
+Example 3
+
+Input: $int = 10020003
+Output: "000"
+
+Task 2: Changing Keys
+#*/
+//# solution by pokgopun@gmail.com
+
+package main
+
+import (
+	"io"
+	"os"
+	"strconv"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+type answer struct {
+	Val_str  string
+	Err_code int
+}
+
+func goodInteger(num int) answer {
+	var (
+		c int
+		r rune
+	)
+	for _, v := range strconv.Itoa(num) {
+		if r == v {
+			c++
+		} else {
+			if c == 3 {
+				return answer{Val_str: string([]rune{r, r, r})}
+			}
+			r = v
+			c = 1
+		}
+	}
+	return answer{Err_code: -1}
+}
+
+func main() {
+	for _, data := range []struct {
+		input  int
+		output answer
+	}{
+		{12344456, answer{Val_str: "444"}},
+		{1233334, answer{Err_code: -1}},
+		{10020003, answer{Val_str: "000"}},
+	} {
+		io.WriteString(os.Stdout, cmp.Diff(goodInteger(data.input), data.output)) // blank if ok, otherwise show the difference
+	}
+}
diff --git a/challenge-282/pokgopun/go/ch-2.go b/challenge-282/pokgopun/go/ch-2.go
new file mode 100644
index 0000000000..4d11b56d8b
--- /dev/null
+++ b/challenge-282/pokgopun/go/ch-2.go
@@ -0,0 +1,85 @@
+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-282/
+/*#
+
+Task 2: Changing Keys
+
+Submitted by: [58]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given an alphabetic string, $str, as typed by user.
+
+   Write a script to find the number of times user had to change the key
+   to type the given string. Changing key is defined as using a key
+   different from the last used key. The shift and caps lock keys won’t be
+   counted.
+
+Example 1
+
+Input: $str = 'pPeERrLl'
+Ouput: 3
+
+p -> P : 0 key change
+P -> e : 1 key change
+e -> E : 0 key change
+E -> R : 1 key change
+R -> r : 0 key change
+r -> L : 1 key change
+L -> l : 0 key change
+
+Example 2
+
+Input: $str = 'rRr'
+Ouput: 0
+
+Example 3
+
+Input: $str = 'GoO'
+Ouput: 1
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 18th August
+   2024.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+#*/
+//# solution by pokgopun@gmail.com
+
+package main
+
+import (
+	"io"
+	"os"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func ck(str string) int {
+	var a, b byte
+	c := -1
+	for i := range len(str) {
+		if str[i] < 97 {
+			a = str[i] + 32
+		}
+		if i > 0 {
+			if a != b {
+				c++
+			}
+			b = a
+		}
+	}
+	return c
+}
+
+func main() {
+	for _, data := range []struct {
+		input  string
+		output int
+	}{
+		{"pPeERrLl", 3},
+		{"rRr", 0},
+		{"GoO", 1},
+	} {
+		io.WriteString(os.Stdout, cmp.Diff(ck(data.input), data.output)) // blank if ok, otherwise show the differece
+	}
+}