Week 261

10 files changed, 209 insertions, 0 deletions

diff --git a/challenge-261/zapwai/c/ch-1.c b/challenge-261/zapwai/c/ch-1.c
new file mode 100644
index 0000000000..2cc1f36c05
--- /dev/null
+++ b/challenge-261/zapwai/c/ch-1.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int digits_sum(int* ints, int ints_len) {
+  int sum = 0;
+  for (int i = 0; i < ints_len; i++) {
+    do {
+      sum += ints[i] % 10;
+      ints[i] /= 10;
+    } while (ints[i] != 0);
+  }
+  return sum;
+}
+
+int sum(int* ints, int ints_len) {
+  int sum = 0;
+  for (int i = 0; i < ints_len; i++)
+    sum += ints[i];
+  return sum;
+}
+
+int main() {
+  int ints[] = {1,2,3,45};
+  int ints_len = sizeof(ints) / sizeof(int);
+  printf("Input: ints = { ");
+  for (int i = 0; i < ints_len; i++)
+    printf("%d ", ints[i]);
+  printf("}\nOutput: %d\n", abs(sum(ints, ints_len) - digits_sum(ints, ints_len)));
+}
diff --git a/challenge-261/zapwai/c/ch-2.c b/challenge-261/zapwai/c/ch-2.c
new file mode 100644
index 0000000000..efdb33fe13
--- /dev/null
+++ b/challenge-261/zapwai/c/ch-2.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdbool.h>
+
+int double_me (int* ints, int ints_len, int start) {
+  bool flag = true;
+  while (flag) {
+    flag = false;
+    for (int i = 0; i < ints_len; i++) {
+      if (ints[i] == start) {
+	flag = true;
+	start *= 2;
+      }
+    }
+  }
+  return start;
+}
+
+int main() {
+  int ints[] = {5, 3, 6, 1, 12};
+  int start = 3;
+  printf("Input: ints = { ");
+  int ints_len = sizeof(ints) / sizeof(int);
+  for (int i = 0; i < ints_len; i++)
+    printf("%d ", ints[i]);
+  printf("}, start = %d\nOutput: %d\n", start, double_me(ints, ints_len, start));
+}
diff --git a/challenge-261/zapwai/javascript/ch-1.js b/challenge-261/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..5b2c54cd9f
--- /dev/null
+++ b/challenge-261/zapwai/javascript/ch-1.js
@@ -0,0 +1,25 @@
+function digits_sum(ints) {
+    let sum = 0;
+    for (let i = 0; i < ints.length; i++) {
+	do {
+	    sum += ints[i] % 10;
+	    ints[i] = Math.floor(ints[i] / 10);
+	} while (ints[i] != 0);
+    }
+    return sum;
+}
+
+function sum(ints) {
+    let sum = 0;
+    for (let i = 0; i < ints.length; i++)
+	sum += ints[i];
+    return sum;
+}
+
+function main() {
+    let ints = [1,2,3,45];
+    console.log("Input:", ints);
+    console.log("Output:", Math.abs(sum(ints) - digits_sum(ints)));
+}
+
+main();
diff --git a/challenge-261/zapwai/javascript/ch-2.js b/challenge-261/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..e0dd478f78
--- /dev/null
+++ b/challenge-261/zapwai/javascript/ch-2.js
@@ -0,0 +1,22 @@
+function double_me (ints, start) {
+    flag = true;
+    while (flag) {
+	flag = false;
+	for (let i = 0; i < ints.length; i++) {
+	    if (ints[i] == start) {
+		flag = true;
+		start *= 2;
+	    }
+	}
+    }
+    return start;
+}
+
+function main() {
+    let ints = [5, 3, 6, 1, 12];
+    let start = 3;
+    console.log("Input: ints:", ints, "start:", start);
+    console.log("Output:", double_me(ints, start));
+}
+
+main();
diff --git a/challenge-261/zapwai/perl/ch-1.pl b/challenge-261/zapwai/perl/ch-1.pl
new file mode 100644
index 0000000000..f0320d1b6d
--- /dev/null
+++ b/challenge-261/zapwai/perl/ch-1.pl
@@ -0,0 +1,15 @@
+use v5.38;
+use List::Util "sum";
+
+sub digit_sum(@ints) {
+    my $sum = 0;
+    foreach (@ints) {
+	my @p = split "", $_;
+	$sum += $_ foreach (@p);
+    }
+    return $sum;
+}
+
+my @ints = (1,2,3,45);
+say "Input: @ints";
+say "Output: ", abs(digit_sum(@ints) - sum @ints);
diff --git a/challenge-261/zapwai/perl/ch-2.pl b/challenge-261/zapwai/perl/ch-2.pl
new file mode 100644
index 0000000000..3ba1a8bb01
--- /dev/null
+++ b/challenge-261/zapwai/perl/ch-2.pl
@@ -0,0 +1,19 @@
+use v5.38;
+my @ints = (5,3,6,1,12);
+my $start = 3;
+doubles_scan(@ints);
+
+sub doubles_scan(@ints) {
+    say "Input: \@ints = @ints, \$start = $start";
+    my $flag = 1;
+    do {
+	$start *= 2;
+	if (grep { $_ == $start } @ints) {
+	    $flag = 1;
+	} else {
+	    $flag = 0;
+	}
+    } while ($flag);
+    say "Output: $start";
+}
+
diff --git a/challenge-261/zapwai/python/ch-1.py b/challenge-261/zapwai/python/ch-1.py
new file mode 100644
index 0000000000..fd3877e363
--- /dev/null
+++ b/challenge-261/zapwai/python/ch-1.py
@@ -0,0 +1,12 @@
+def digit_sum(ints):
+    sum = 0
+    for integer in ints:
+        while integer != 0:
+            sum += integer % 10;
+            integer = int(integer / 10);
+    return sum
+
+ints = [1,2,3,45];
+print("Input:", ints);
+print("Output:", abs(digit_sum(ints) - sum(ints)));
+
diff --git a/challenge-261/zapwai/python/ch-2.py b/challenge-261/zapwai/python/ch-2.py
new file mode 100644
index 0000000000..1048ae11cd
--- /dev/null
+++ b/challenge-261/zapwai/python/ch-2.py
@@ -0,0 +1,14 @@
+def double_me(ints,start):
+    flag = True
+    while flag:
+        flag = False
+        for i in ints:
+            if i == start:
+                flag = True
+                start *= 2
+    return start
+
+ints = [5, 3, 6, 1, 12]
+start = 3;
+print("Input:", ints, "start:", start)
+print("Output:", double_me(ints, start))
diff --git a/challenge-261/zapwai/rust/ch-1.rs b/challenge-261/zapwai/rust/ch-1.rs
new file mode 100644
index 0000000000..7cc0b3da3d
--- /dev/null
+++ b/challenge-261/zapwai/rust/ch-1.rs
@@ -0,0 +1,26 @@
+fn digits_sum(ints :&Vec<i32>) -> i32 {
+    let mut sum = 0;
+    for i in 0 .. ints.len() {
+	let mut val = ints[i];
+	while val != 0 {
+	    sum += val % 10;
+	    val /= 10;
+	}
+    }
+    return sum;
+}
+
+fn sum(ints :&Vec<i32>) -> i32 {
+    let mut sum = 0;
+    for i in 0 .. ints.len() {
+	sum += ints[i];
+    }
+    return sum;
+}
+
+fn main() {
+    let ints = vec![1,2,3,45];
+    println!("Input: ints = {:?}", ints);
+    let value = sum(&ints) - digits_sum(&ints);
+    println!("Output: {}", value.abs());
+}
diff --git a/challenge-261/zapwai/rust/ch-2.rs b/challenge-261/zapwai/rust/ch-2.rs
new file mode 100644
index 0000000000..72158822de
--- /dev/null
+++ b/challenge-261/zapwai/rust/ch-2.rs
@@ -0,0 +1,21 @@
+fn double_me (ints :&Vec<i32>, start :&mut i32) -> i32 {
+    let mut flag = true;
+    while flag {
+	flag = false;
+	for i in ints {
+	    if i == start {
+		flag = true;
+		*start *= 2;
+	    }
+	}
+    }
+    return *start;
+}
+
+fn main() {
+    let ints = vec![5, 3, 6, 1, 12];
+    let mut start = 3;
+    println!("Input: ints = {:?}, start = {start}", ints);
+    println!("Output: {}", double_me(&ints, &mut start));
+}
+