From be61a1355d1687ed5f91f82ca86b4df44da874cc Mon Sep 17 00:00:00 2001
From: Salem Ba-rabuod <barboud@gmail.com>
Date: Tue, 20 Jan 2026 20:54:40 +0100
Subject: [PATCH] solved all assignments

---
 task-1/leap-year.js | 20 +++++++++++++++-----
 task-2/login.js     | 19 ++++++++++++++++---
 task-3/converter.js | 15 +++++++++------
 3 files changed, 40 insertions(+), 14 deletions(-)

diff --git a/task-1/leap-year.js b/task-1/leap-year.js
index e05d215..0cb7ff2 100644
--- a/task-1/leap-year.js
+++ b/task-1/leap-year.js
@@ -2,8 +2,18 @@ import promptSync from 'prompt-sync';
 const prompt = promptSync();
 
 
-// Write your code here
-// Guidance:
-// Step 1: prompt the user to enter a year
-// Step 2: convert the user input to a number so we can perform calculations
-// Step 3: Implement the logic
+console.log('Leap Year Check program!');
+
+const year = parseInt(prompt('Enter a year: '));
+
+if ( isNaN(year) || (year > 9999) || (year < 1)) {
+    console.log('Invalid year!');
+} else {
+
+    if ( (Number.isInteger(year/400) === true) || ( (Number.isInteger(year/4) === true) && (Number.isInteger(year/100) === false) ) ) {
+        console.log('Yes, ' + year + ' is a leap year');
+    } else {
+        console.log('No, ' + year + ' is not a leap year');
+    }
+
+}
\ No newline at end of file
diff --git a/task-2/login.js b/task-2/login.js
index ca9ba92..d75f9d8 100644
--- a/task-2/login.js
+++ b/task-2/login.js
@@ -4,9 +4,22 @@ import { errorMessage, successMessage } from './app.js';
 let incorrectAttempts = 0;
 
 function onLogin(username, password) {
-  // Write your code here.
-  // Use the variables 'username' and 'password' to access the input values
-  // Use incorrectAttempts to track the number of failed attempts
+
+
+  if (incorrectAttempts < 3) {
+    
+    if ( (username === 'admin' && password === 'Hack1234') || (username === 'user' && password === '7654321') ) {
+        successMessage('Logged in successfully');
+      } else {
+        errorMessage('Incorrect credentials');
+        incorrectAttempts++;
+      }
+
+  } else {
+    errorMessage('Login blocked: Too many incorrect attempts');
+  }
+
+
 }
 
 // Do not change the line below
diff --git a/task-3/converter.js b/task-3/converter.js
index 0f54a18..3a8c369 100644
--- a/task-3/converter.js
+++ b/task-3/converter.js
@@ -5,10 +5,11 @@ const prompt = promptSync();
 const EUR_USD_RATE = 1.1643;
 
 // Menu display
-conole.log("Hello and welcome to the currency converter. Please choose: ");
+console.log("Hello and welcome to the currency converter. Please choose: ");
 console.log("1: Convert EUR to USD");
 console.log("2: Convert USD to EUR");
-const menuSelection = prompt("Select your option [1 or 2]: ");
+console.log("3: Display the current exchange rate");
+const menuSelection = prompt("Select your option [1, 2, or 3]: ");
 
 console.log("\n");
 
@@ -16,7 +17,7 @@ if (menuSelection === "1") {
   // EUR to USD
   const eurAmountInput = prompt("Enter amount in EUR: ");
   const eurAmountNum = Number(eurAmountInput);
-  if (Number.isNaN(eurAmountNum) || eurAmountNum > 0) {
+  if (Number.isNaN(eurAmountNum) || eurAmountNum < 0) {
     console.log("Please enter a valid positive number for the amount.");
   } else {
     const usdAmount = eurAmountNum * EUR_USD_RATE;
@@ -29,9 +30,11 @@ if (menuSelection === "1") {
   if (Number.isNaN(usdAmountNum) || usdAmountNum < 0) {
     console.log("Please enter a valid positive number for the amount.");
   } else {
-    const eurAmount = usdAmountNum / eur_usd_rate;
-    console.log(usdAmountNum.toFixed(2) + ' USD is equal to ' + usdAmountNum.toFixed(2) + ' EUR.');
+    const eurAmount = usdAmountNum / EUR_USD_RATE;
+    console.log(usdAmountNum.toFixed(2) + ' USD is equal to ' + eurAmount.toFixed(2) + ' EUR.');
   }
+} else if (menuSelection === "3") {
+  console.log("The current exchange rate is 1 EUR = "+ EUR_USD_RATE + " USD.");
 } else {
-  console.log("Invalid selection. Please choose either 1 or 2.");
+  console.log("Invalid selection. Please choose either 1, 2, or 3.");
 }