pwc258 solution in go

2 files changed, 170 insertions, 0 deletions

diff --git a/challenge-258/pokgopun/go/ch-1.go b/challenge-258/pokgopun/go/ch-1.go
new file mode 100644
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+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-258/
+/*#
+
+Task 1: Count Even Digits Number
+
+Submitted by: [42]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given a array of positive integers, @ints.
+
+   Write a script to find out how many integers have even number of
+   digits.
+
+Example 1
+
+Input: @ints = (10, 1, 111, 24, 1000)
+Output: 3
+
+There are 3 integers having even digits i.e. 10, 24 and 1000.
+
+Example 2
+
+Input: @ints = (111, 1, 11111)
+Output: 0
+
+Example 3
+
+Input: @ints = (2, 8, 1024, 256)
+Output: 1
+
+Task 2: Sum of Values
+#*/
+//# solution by pokgopun@gmail.com
+
+package main
+
+import (
+	"io"
+	"os"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+type num int
+
+func (nm num) countDigit() int {
+	c := 0
+	for nm > 0 {
+		nm /= 10
+		c++
+	}
+	return c
+}
+
+type nums []num
+
+func (ns nums) cedn() int {
+	c := 0
+	for _, v := range ns {
+		if v.countDigit()%2 == 0 {
+			c++
+		}
+	}
+	return c
+}
+
+func main() {
+	for _, data := range []struct {
+		input  nums
+		output int
+	}{
+		{nums{10, 1, 111, 24, 1000}, 3},
+		{nums{111, 1, 11111}, 0},
+		{nums{2, 8, 1024, 256}, 1},
+	} {
+		io.WriteString(os.Stdout, cmp.Diff(data.input.cedn(), data.output)) // blank if ok, otherwise show the differences
+	}
+}
diff --git a/challenge-258/pokgopun/go/ch-2.go b/challenge-258/pokgopun/go/ch-2.go
new file mode 100644
index 0000000000..14a352f7f0
--- /dev/null
+++ b/challenge-258/pokgopun/go/ch-2.go
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+//# https://theweeklychallenge.org/blog/perl-weekly-challenge-258/
+/*#
+
+Task 2: Sum of Values
+
+Submitted by: [43]Mohammad Sajid Anwar
+     __________________________________________________________________
+
+   You are given an array of integers, @int and an integer $k.
+
+   Write a script to find the sum of values whose index binary
+   representation has exactly $k number of 1-bit set.
+
+Example 1
+
+Input: @ints = (2, 5, 9, 11, 3), $k = 1
+Output: 17
+
+Binary representation of index 0 = 0
+Binary representation of index 1 = 1
+Binary representation of index 2 = 10
+Binary representation of index 3 = 11
+Binary representation of index 4 = 100
+
+So the indices 1, 2 and 4 have total one 1-bit sets.
+Therefore the sum, $ints[1] + $ints[2] + $ints[3] = 17
+
+Example 2
+
+Input: @ints = (2, 5, 9, 11, 3), $k = 2
+Output: 11
+
+Example 3
+
+Input: @ints = (2, 5, 9, 11, 3), $k = 0
+Output: 2
+     __________________________________________________________________
+
+   Last date to submit the solution 23:59 (UK Time) Sunday 1st March 2024.
+     __________________________________________________________________
+
+SO WHAT DO YOU THINK ?
+#*/
+//# solution by pokgopun@gmail.com
+
+package main
+
+import (
+	"io"
+	"os"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+type num int
+
+func (nm num) countOn() int {
+	c := 0
+	for nm > 0 {
+		if nm%2 == 1 {
+			c++
+		}
+		nm /= 2
+	}
+	return c
+}
+
+type nums []int
+
+func (ns nums) sov(n int) int {
+	s := 0
+	for i, v := range ns {
+		if num(i).countOn() == n {
+			s += v
+		}
+	}
+	return s
+}
+
+func main() {
+	for _, data := range []struct {
+		ints   nums
+		k      int
+		output int
+	}{
+		{nums{2, 5, 9, 11, 3}, 1, 17},
+		{nums{2, 5, 9, 11, 3}, 2, 11},
+		{nums{2, 5, 9, 11, 3}, 0, 2},
+	} {
+		io.WriteString(os.Stdout, cmp.Diff(data.ints.sov(data.k), data.output)) // blank if ok, otherwise show the differences
+	}
+}