Merge pull request #9596 from zapwai/branch-for-recent-js

Branch for recent js

12 files changed, 381 insertions, 0 deletions

diff --git a/challenge-250/zapwai/javascript/ch-1.js b/challenge-250/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..250e412f12
--- /dev/null
+++ b/challenge-250/zapwai/javascript/ch-1.js
@@ -0,0 +1,19 @@
+let ints = [0, 1, 2];
+let ints2 = [4, 3, 2, 1];
+let ints3 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
+
+proc(ints);
+proc(ints2);
+proc(ints3);
+
+function proc(ints) {
+    let k = -1;
+    for (let i = 0; i < ints.length; i++) {
+	if (i % 10 == ints[i]) {
+	    k = i;
+	    break;
+	}
+    }
+    console.log("Input:",ints);
+    console.log("Output:",k);
+}
diff --git a/challenge-250/zapwai/javascript/ch-2.js b/challenge-250/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..869729bb7d
--- /dev/null
+++ b/challenge-250/zapwai/javascript/ch-2.js
@@ -0,0 +1,23 @@
+let alph = ["perl", "2", "000", "python", "r4ku"];
+let alph2 = ["001", "1", "000", "0001"];
+
+proc(alph);
+proc(alph2);
+
+function proc(alph) {
+    let max = 0;
+    for (let word of alph) {
+	let reg = /^\d+$/;
+	let n = word.match(reg);
+	if (n == null) {
+	    n = word.length;
+	} else {
+	    n = Math.max(n);
+	}
+	if (max < n) {
+	    max = n;
+	}
+    }
+    console.log("Input:",alph);
+    console.log("Output:",max);
+}
diff --git a/challenge-251/zapwai/javascript/ch-1.js b/challenge-251/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..fcaf73900b
--- /dev/null
+++ b/challenge-251/zapwai/javascript/ch-1.js
@@ -0,0 +1,20 @@
+let ints = [6, 12, 25, 1];
+let ints2 = [10, 7, 31, 5, 2, 2];
+let ints3 = [1, 2, 10];
+proc(ints);
+proc(ints2);
+proc(ints3);
+function proc(ints) {
+    console.log("Input:", ints);
+    let sum = 0;
+    while (ints.length > 0) {
+	let a = ints.shift();
+	let num = a;
+	if (ints.length > 0) {
+	    let b = ints.pop();
+	    num = `${a}`+`${b}`;
+	}
+	sum += parseInt(num);
+    }
+    console.log("Output:", sum);
+}
diff --git a/challenge-251/zapwai/javascript/ch-2.js b/challenge-251/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..921c64ca25
--- /dev/null
+++ b/challenge-251/zapwai/javascript/ch-2.js
@@ -0,0 +1,39 @@
+let m =  [ [ 3,  7,  8],
+	   [ 9, 11, 13],
+	   [15, 16, 17] ];
+
+let m2 = [ [ 1, 10,  4,  2],
+           [ 9,  3,  8,  7],
+           [15, 16, 17, 12] ];
+
+let m3 = [ [7 ,8],
+           [1 ,2] ];
+
+proc(m);
+proc(m2);
+proc(m3);
+
+function proc(m) {
+    let mins = [];
+    for (let row of m) {
+	mins.push(Math.min(...row));
+    }
+    let maxs = [];
+    for (let j = 0; j < m[0].length; j++) {
+	let col = [];
+	for (let i = 0; i < m.length; i++) {
+	    col.push(m[i][j]);
+	}
+	maxs.push(Math.max(...col));
+    }
+    let x;
+    for (let i of mins) {
+	for (let j of maxs) {
+	    if (i == j) {
+		x = i;
+	    }
+	}
+    }
+    console.log("Input: m =", m);
+    console.log("Output:", x);
+}
diff --git a/challenge-252/zapwai/javascript/ch-1.js b/challenge-252/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..8b95a0d51c
--- /dev/null
+++ b/challenge-252/zapwai/javascript/ch-1.js
@@ -0,0 +1,25 @@
+let ints = [1, 2, 3, 4];
+let ints2 = [2, 7, 1, 19, 18, 3];
+
+proc(ints);
+proc(ints2);
+
+function total( list ) {
+    let sum = 0;
+    for (let i of list) {
+	sum += i*i;
+    }
+    return sum;
+}
+
+function proc( ints ) {
+    let n = ints.length;
+    let spec = [];
+    for (let i = 0; i < n; i++) {
+	if (n % (i + 1) == 0) {
+	    spec.push(ints[i]);
+	}
+    }
+    console.log("Input:", ints);
+    console.log("Output:", total( spec ));
+}
diff --git a/challenge-252/zapwai/javascript/ch-2.js b/challenge-252/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..1fe5b40823
--- /dev/null
+++ b/challenge-252/zapwai/javascript/ch-2.js
@@ -0,0 +1,17 @@
+let inputs = [5, 3, 1];
+for (let inp of inputs) {
+    proc(inp);
+}
+function proc(n) {
+    let list = [];
+    if (n % 2 == 1) {
+	list.push(0);
+    }
+    let k = parseInt(n / 2);
+    for (let i = 0; i < k; i++) {
+	list.push(-1 * (i+1));
+	list.push(i+1);	
+    }
+    console.log("Input:", n);
+    console.log("Output:", list);
+}
diff --git a/challenge-253/zapwai/javascript/ch-1.js b/challenge-253/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..07fb587a38
--- /dev/null
+++ b/challenge-253/zapwai/javascript/ch-1.js
@@ -0,0 +1,25 @@
+function proc(words, sep) {
+    let list = [];
+    for (let word of words) {
+	let wordmaybe = word.split(sep);
+	for (let w of wordmaybe) {
+	    if (w != "") {
+		list.push(w);
+	    }
+	}
+    }
+    console.log("Input:", words);
+    console.log("Output:", list);    
+}
+
+
+function main() {
+    let words = ["one.two.three","four.five","six"];
+    let sep = ".";
+    let words2 = ["$perl$$", "$$raku$"];
+    let sep2 = "$";
+    proc(words, sep);
+    proc(words2, sep2);
+}
+
+main();
diff --git a/challenge-253/zapwai/javascript/ch-2.js b/challenge-253/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..d713bf0f93
--- /dev/null
+++ b/challenge-253/zapwai/javascript/ch-2.js
@@ -0,0 +1,66 @@
+let m1 = [
+    [1, 1, 0, 0, 0],
+    [1, 1, 1, 1, 0],
+    [1, 0, 0, 0, 0],
+    [1, 1, 0, 0, 0],
+    [1, 1, 1, 1, 1]
+];
+
+let m2 = [
+    [1, 0, 0, 0],
+    [1, 1, 1, 1],
+    [1, 0, 0, 0],
+    [1, 0, 0, 0]
+];
+
+proc(m1);
+proc(m2);
+
+function tally_row(m, i) {
+    let sum = 0;
+    for (let j = 0; j < m[0].length; j++) {
+	sum += m[i][j];
+    }
+    return sum;
+}
+
+// Return True if i is weaker than j
+function is_weaker(m, i, j) {
+    let ti = tally_row(m, i);
+    let tj = tally_row(m, j);
+    if (ti  < tj) {
+	return true;
+    } else if (ti == tj) {
+	return i < j;
+    } else {
+	return false;
+    }
+}
+
+function mysort(m, list) {
+    let cnt = 0;
+    do {
+	cnt = 0;
+	for (let i = 0; i < list.length - 1; i++) {
+	    if (is_weaker(m, list[i], list[i+1])) {
+		cnt++;
+		let tmp = list[i];
+		list[i] = list[i+1];
+		list[i+1] = tmp;
+	    }
+	}
+    } while (cnt > 0);
+    return list;
+}
+
+function proc(m) {
+    console.log("Input:", m);
+    let list = [];
+    for (let i = 0; i < m.length; i++) {
+	list.push(i);
+    }
+    mysort(m, list);
+    list.reverse();
+    console.log("Output:",list);
+}
+
diff --git a/challenge-254/zapwai/javascript/ch-1.js b/challenge-254/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..abb4dbc19d
--- /dev/null
+++ b/challenge-254/zapwai/javascript/ch-1.js
@@ -0,0 +1,29 @@
+function main() {
+    let n1 = 27;
+    let n2 = 0;
+    let n3 = 6;
+    console.log(`Input: ${n1}`);
+    console.log(`Output: ${is_pow(n1)}`);
+    console.log(`Input: ${n2}`);
+    console.log(`Output: ${is_pow(n2)}`);
+    console.log(`Input: ${n3}`);
+    console.log(`Output: ${is_pow(n3)}`);
+    
+}
+
+function is_pow(n) {
+    if (n < 3) {
+	return false;
+    }
+    do {
+	n /= 3;
+	if (n == 1) {
+	    return true;
+	} else if (n % 3 != 0) {
+	    return false;
+	}
+    }
+    while (1);
+}
+
+main();
diff --git a/challenge-254/zapwai/javascript/ch-2.js b/challenge-254/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..9dccd35472
--- /dev/null
+++ b/challenge-254/zapwai/javascript/ch-2.js
@@ -0,0 +1,34 @@
+let vowelList = "aeiouAEIOU";
+let inputs = ["Perl", "Raku", "Julia", "Uiua"];
+for (let inp of inputs) {
+    let vows = [];
+    let pos = [];
+    let c = inp.split("");
+    for (let i = 0; i < inp.length; i++) {
+	for (let v of vowelList) {
+	    if (c[i] == v) {
+		vows.push(v);
+		pos.push(i);
+		break;
+	    }
+	}
+    }
+    console.log("Input:", inp);
+    vows = vows.reverse();
+    let ans = "";
+    let j = 0;
+    for (let i = 0; i < inp.length; i++) {
+	let vflag = false;
+	for (p of pos) {
+	    if (i == p) {
+		ans += vows[j];
+		j++;
+		vflag = true;
+	    }
+	}
+	if (!vflag) {
+	    ans += inp[i];
+	}
+    }
+    console.log("Output:", ans);
+}
diff --git a/challenge-255/zapwai/javascript/ch-1.js b/challenge-255/zapwai/javascript/ch-1.js
new file mode 100644
index 0000000000..d90e0b3051
--- /dev/null
+++ b/challenge-255/zapwai/javascript/ch-1.js
@@ -0,0 +1,45 @@
+let [s, t] = ["Perl", "Preel"];
+let [s2, t2] = ["Weekly", "Weeakly"];
+let [s3, t3] = ["Box", "Boxy"];
+proc(s, t);
+proc(s2, t2);
+proc(s3, t3);
+function proc(s,t) {
+    console.log(`Input: s: ${s}, t: ${t}`);
+    let f = {};
+    for (let l of s.split("")) {
+	f[l] = 0;
+    }
+    let g = {};
+    for (let l of t.split("")) {
+	g[l] = 0;
+    }
+    for (let l of s.split("")) {
+	f[l]++;
+    }
+    for (let l of t.split("")) {
+	g[l]++;
+    }
+    let letter;
+    for (let G of Object.keys(g)) {
+	let cnt = 0;
+	for (let F of Object.keys(f)) {
+	    if (F == G) {
+		break;
+	    }
+	    cnt++;
+	}
+	if (cnt == Object.keys(f).length) {
+	    letter = G;
+	}
+    }
+    if (letter == undefined) {
+	for (let l of Object.keys(f)) {
+	    if (f[l] < g[l]) {
+		letter = l;
+	    }
+	}
+    }
+    console.log(`Output: ${letter}`);
+}
+
diff --git a/challenge-255/zapwai/javascript/ch-2.js b/challenge-255/zapwai/javascript/ch-2.js
new file mode 100644
index 0000000000..6c9c7a7991
--- /dev/null
+++ b/challenge-255/zapwai/javascript/ch-2.js
@@ -0,0 +1,39 @@
+let p = "Joe hit a ball, the hit ball flew far after it was hit.";
+let w = "hit";
+
+let p2 = "Perl and Raku belong to the same family. Perl is the most popular language in the weekly challenge.";
+let w2 = "the";
+
+function proc(p, w) {
+    let f = {};
+    let mywords = [];
+    let words = p.split(" ");
+    for (let word of words) {
+	let c = word.split("");
+	if ( (c[word.length - 1] == ".") ||
+	     (c[word.length - 1] == ",") ) {
+	    word = word.slice(0,-1);
+	}
+	if (word == w) {
+	    continue;
+	} 
+	f[word] = 0;
+	mywords.push(word);
+    }
+    for (let word of mywords) {
+	f[word]++;
+    }
+    console.log(`Input: ${p}, ${w}`);
+    let max = 0;
+    let maxword;
+    for (let k of Object.keys(f)) {
+	if (max < f[k]) {
+	    max = f[k];
+	    maxword = k;
+	}
+    }
+    console.log(maxword);
+}
+
+proc(p, w);
+proc(p2, w2);