10 files changed, 182 insertions, 0 deletions
diff --git a/challenge-272/zapwai/c/ch-1.c b/challenge-272/zapwai/c/ch-1.c
new file mode 100644
index 0000000000..5e1fad79bf
--- /dev/null
+++ b/challenge-272/zapwai/c/ch-1.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void proc(char* ip) {
+  char* out = malloc(100 * sizeof(char));
+  int j = 0;
+  for (int i = 0; i < strlen(ip); i++) {
+    if (ip[i] == '.') {
+      out[j++] = '[';
+      out[j++] = '.';
+      out[j] = ']';
+    } else {
+      out[j] = ip[i];
+    }
+    j++;
+  }
+  out[j] = '\0';
+  printf( "Input: %s\n", ip);
+  printf( "Output: %s\n", out);
+  free(out);
+}
+
+int main() {
+  char* ip = "1.1.1.1";
+  proc(ip);
+  char* ip2 = "255.101.1.0";
+  proc(ip2);
+}
diff --git a/challenge-272/zapwai/c/ch-2.c b/challenge-272/zapwai/c/ch-2.c
new file mode 100644
index 0000000000..8f93ad2cd6
--- /dev/null
+++ b/challenge-272/zapwai/c/ch-2.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+void proc(char* str) {
+  int sum = 0;
+  int prev = str[0];
+  for (int i = 1; i < strlen(str); i++) {
+    int diff = abs(str[i] - prev);
+    sum += diff;
+    prev = str[i];
+  }
+  printf("Input: %s\n", str);
+  printf("Output: %d\n", sum);
+}
+
+int main() {
+  char* str1 = "hello";
+  proc(str1);
+  char* str2 = "perl";
+  proc(str2);
+  char* str3 = "raku";
+  proc(str3);
+}
diff --git a/challenge-272/zapwai/javascript/ch-1.js b/challenge-272/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..024387a534
--- /dev/null
+++ b/challenge-272/zapwai/javascript/ch-1.js
@@ -0,0 +1,11 @@
+let ip = "1.1.1.1";
+proc(ip);
+ip = "255.101.1.0";
+proc(ip);
+
+function proc(ip) {
+    let nums = ip.split('\.');
+    let out = nums.join("[.]");
+    console.log( "Input:", ip);
+    console.log( "Output:", out);
+}
diff --git a/challenge-272/zapwai/javascript/ch-2.js b/challenge-272/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..7d944f651c
--- /dev/null
+++ b/challenge-272/zapwai/javascript/ch-2.js
@@ -0,0 +1,19 @@
+let str = "hello";
+proc(str);
+str = "perl";
+proc(str);
+str = "raku";
+proc(str);
+
+function proc(str) {
+    let ords = [];
+    for (let i = 0; i < str.length; i++) {
+	ords.push(str.charCodeAt(i));
+    }
+    let sum = 0;
+    for (let i = 0; i < ords.length - 1; i++) {
+	sum += Math.abs(ords[i] - ords[i + 1]);
+    }
+    console.log( "Input:", str);
+    console.log( "Output:", sum);
+}
diff --git a/challenge-272/zapwai/perl/ch-1.pl b/challenge-272/zapwai/perl/ch-1.pl
new file mode 100644
index 0000000000..ef46d3822f
--- /dev/null
+++ b/challenge-272/zapwai/perl/ch-1.pl
@@ -0,0 +1,12 @@
+use v5.38;
+my $ip = "1.1.1.1";
+proc($ip);
+$ip = "255.101.1.0";
+proc($ip);
+
+sub proc($ip) {
+    my @nums = split '\.', $ip;
+    my $out = join "[.]", @nums;
+    say "Input: $ip";
+    say "Output: $out";
+}
diff --git a/challenge-272/zapwai/perl/ch-2.pl b/challenge-272/zapwai/perl/ch-2.pl
new file mode 100644
index 0000000000..4676c3ee0a
--- /dev/null
+++ b/challenge-272/zapwai/perl/ch-2.pl
@@ -0,0 +1,15 @@
+use v5.38;
+my $str = "hello";
+proc($str);
+$str = "perl";
+proc($str);
+$str = "raku";
+proc($str);
+
+sub proc($str) {
+    my @ord = map { ord $_ } split "", $str;
+    my $sum = 0;
+    $sum += abs($ord[$_] - $ord[$_ + 1]) for (0 .. $#ord - 1);
+    say "Input: $str";
+    say "Output: $sum";
+}
diff --git a/challenge-272/zapwai/python/ch-1.py b/challenge-272/zapwai/python/ch-1.py
new file mode 100644
index 0000000000..d254cbd0ac
--- /dev/null
+++ b/challenge-272/zapwai/python/ch-1.py
@@ -0,0 +1,15 @@
+def proc(ip):
+    nums = ip.split('.')
+    out = ''
+    for i in range(len(nums)):
+        str = nums[i]
+        if i < len(nums) - 1:
+            str += "[.]"
+        out += str
+    print("Input:", ip)
+    print("Output:", out)
+
+ip = "1.1.1.1"
+proc(ip)
+ip = "255.101.1.0"
+proc(ip)
diff --git a/challenge-272/zapwai/python/ch-2.py b/challenge-272/zapwai/python/ch-2.py
new file mode 100644
index 0000000000..4d488a2ab5
--- /dev/null
+++ b/challenge-272/zapwai/python/ch-2.py
@@ -0,0 +1,18 @@
+def proc(str):
+    chars = list(str)
+    num = []
+    for c in chars:
+        num.append(ord(c))
+    sum = 0
+    for i in range(len(num) - 1):
+        sum += abs(num[i] - num[i + 1]) 
+    print("Input:", str)
+    print("Output:", sum)
+
+str = "hello"
+proc(str)
+str = "perl"
+proc(str)
+str = "raku"
+proc(str)
+
diff --git a/challenge-272/zapwai/rust/ch-1.rs b/challenge-272/zapwai/rust/ch-1.rs
new file mode 100644
index 0000000000..fdea6f414f
--- /dev/null
+++ b/challenge-272/zapwai/rust/ch-1.rs
@@ -0,0 +1,18 @@
+fn main() {
+    let ip = "1.1.1.1";
+    proc(ip);
+    let ip2 = "255.101.1.0";
+    proc(ip2);
+}
+
+fn proc(ip : &str) {
+    let nums : Vec<&str> = ip.split(".").collect();
+    let mut pie : String = String::new();
+    for p in &nums {
+	pie += p;
+	pie += "[.]";
+    }
+    let out = &pie[..pie.len()-3];
+    println!( "Input: {ip}");
+    println!( "Output: {out}");
+}
diff --git a/challenge-272/zapwai/rust/ch-2.rs b/challenge-272/zapwai/rust/ch-2.rs
new file mode 100644
index 0000000000..c78c8b1e14
--- /dev/null
+++ b/challenge-272/zapwai/rust/ch-2.rs
@@ -0,0 +1,21 @@
+fn main() {
+    let str = "hello";
+    proc(str);
+    let str2 = "perl";
+    proc(str2);
+    let str3 = "raku";
+    proc(str3);
+}
+
+fn proc(stri : &str) {
+    let mut sum = 0;
+    let strin : Vec<char> = stri.chars().collect();
+    let mut prev = strin[0];
+    for i in 0 .. strin.len() {
+	let diff = strin[i] as i32 - prev as i32;
+	prev = strin[i];
+	sum += diff.abs();
+    }
+    println!( "Input: {stri}");
+    println!( "Output: {sum}");
+}