Code Solutions
Collection
Code Solution datasets for multiple languages
•
4 items
•
Updated
•
1
Datasets:
Dataset Viewer
id
int64 1
10k
| question
stringclasses 10
values | solution
stringclasses 10
values | difficulty
stringclasses 3
values | topic
stringclasses 5
values |
|---|---|---|---|---|
1 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
2 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
medium
|
math
|
3 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
medium
|
strings
|
4 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
5 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
medium
|
recursion
|
6 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
easy
|
math
|
7 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
medium
|
loops
|
8 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
9 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
medium
|
strings
|
10 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
medium
|
strings
|
11 |
Write a recursive function to sum an array.
|
function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
}
|
easy
|
recursion
|
12 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
13 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
easy
|
math
|
14 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
easy
|
loops
|
15 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
hard
|
math
|
16 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
easy
|
recursion
|
17 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
medium
|
strings
|
18 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
easy
|
strings
|
19 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
medium
|
arrays
|
20 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
medium
|
math
|
21 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
22 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
easy
|
loops
|
23 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
24 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
medium
|
arrays
|
25 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
medium
|
recursion
|
26 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
easy
|
arrays
|
27 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
easy
|
recursion
|
28 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
medium
|
math
|
29 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
easy
|
arrays
|
30 |
Write a recursive function to sum an array.
|
function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
}
|
easy
|
recursion
|
31 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
medium
|
strings
|
32 |
Write a recursive function to sum an array.
|
function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
}
|
medium
|
recursion
|
33 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
medium
|
math
|
34 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
35 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
easy
|
arrays
|
36 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
medium
|
recursion
|
37 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
medium
|
strings
|
38 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
medium
|
loops
|
39 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
easy
|
recursion
|
40 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
easy
|
arrays
|
41 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
42 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
43 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
medium
|
recursion
|
44 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
medium
|
recursion
|
45 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
hard
|
strings
|
46 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
medium
|
strings
|
47 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
easy
|
arrays
|
48 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
easy
|
recursion
|
49 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
medium
|
recursion
|
50 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
easy
|
math
|
51 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
easy
|
arrays
|
52 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
medium
|
arrays
|
53 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
54 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
easy
|
strings
|
55 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
medium
|
arrays
|
56 |
Write a recursive function to sum an array.
|
function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
}
|
medium
|
recursion
|
57 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
58 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
59 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
medium
|
math
|
60 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
medium
|
math
|
61 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
hard
|
math
|
62 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
63 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
64 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
easy
|
math
|
65 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
easy
|
strings
|
66 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
easy
|
math
|
67 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
medium
|
strings
|
68 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
medium
|
strings
|
69 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
easy
|
recursion
|
70 |
Write a function that reverses a string.
|
function reverseString(s) {
return s.split('').reverse().join('');
}
|
easy
|
strings
|
71 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
easy
|
loops
|
72 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
medium
|
arrays
|
73 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
medium
|
arrays
|
74 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
75 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
medium
|
loops
|
76 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
77 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
hard
|
math
|
78 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
easy
|
recursion
|
79 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
easy
|
arrays
|
80 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
medium
|
math
|
81 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
easy
|
strings
|
82 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
easy
|
arrays
|
83 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
medium
|
arrays
|
84 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
easy
|
loops
|
85 |
Write a function that returns the factorial of a number.
|
function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
}
|
medium
|
math
|
86 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
medium
|
arrays
|
87 |
Write a function that prints numbers from 1 to 100.
|
function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
}
|
medium
|
loops
|
88 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
easy
|
loops
|
89 |
Write a function that checks if a string is a palindrome.
|
function isPalindrome(s) {
return s === s.split('').reverse().join('');
}
|
medium
|
strings
|
90 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
easy
|
arrays
|
91 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
easy
|
recursion
|
92 |
Write a function that checks if a number is prime.
|
function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
}
|
hard
|
math
|
93 |
Write a function that finds even numbers in an array.
|
function findEven(arr) {
return arr.filter(num => num % 2 === 0);
}
|
easy
|
loops
|
94 |
Write a recursive function to compute Fibonacci numbers.
|
function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
}
|
hard
|
recursion
|
95 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
easy
|
arrays
|
96 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
easy
|
arrays
|
97 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
medium
|
arrays
|
98 |
Write a recursive function to sum an array.
|
function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
}
|
easy
|
recursion
|
99 |
Write a function that returns the sum of an array.
|
function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
}
|
hard
|
arrays
|
100 |
Write a function that removes duplicates from an array.
|
function removeDuplicates(arr) {
return [...new Set(arr)];
}
|
easy
|
arrays
|
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