prefix stringlengths 0 918k | middle stringlengths 0 812k | suffix stringlengths 0 962k |
|---|---|---|
from typing import List
def Strongest_Extension(class_name: str, extensions: List[str]) -> str:
"""You will be given the name of a class (a string) and a list of extensions.
The extensions are to be used to load additional classes to the class. The
strength of the extension is as follows: Let CAP be the nu... | best_strength, best_extension = -1, '' | for extension in extensions:
n_uppercase = sum(1 for c in extension if c.isupper())
n_lowercase = sum(1 for c in extension if c.islower())
if n_uppercase - n_lowercase > best_strength:
best_strength = n_uppercase - n_lowercase
best_extension = extension
return cla... |
//You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return undefined if there is no such element.
// >>> next_smallest([1, 2, 3, 4, 5])
// 2
// >>> next_smallest([5, 1, 4, 3, 2])
// 2
// >>> next_smallest([])
// undefined
// >>> next_smallest(... | return second_smallest; | } |
//Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the
// previous term as follows: if the previous ... | var odd_numbers = [] | var odd_count = 0
collatz_sequence.push(n)
for(var i = 0; i < collatz_sequence.length; i++){
if(collatz_sequence[i]%2 == 0){
collatz_sequence.push(collatz_sequence[i]/2)
}
else if(collatz_sequence[i]%2 == 1){
collatz_sequence.push(collatz_sequence[i]*3+1)
... |
//Given a string s, count the number of uppercase vowels in even indices.
// For example:
// >>> count_upper("aBCdEf")
// 1
// >>> count_upper("abcdefg")
// 0
// >>> count_upper("dBBE")
// 0
function count_upper(s){
var index;
var result = 0;
var vowel = ['A', 'E', 'I', 'O', 'U'];
for (index = 0; index ... | if (vowel.indexOf(s[index]) > -1){ | result += 1;
}
}
return result;
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is ... | return false; | }
for (int i = 0; i < q.size() / 2; i++) {
if (q.get(i) != q.get(q.size() - 1 - i)) {
return false;
}
}
return true;
}
} |
//In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible ... | } | }
|
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sid... | } | return -1;
}
} |
from typing import List
def separate_paren_groups(paren_string: str) -> List[str]:
""" Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
separate those group into separate strings and return the list of those.
Separate groups are balanced (each open brace ... | group = '' | return groups
|
//Given an object, return true if all keys are strings in lower
// case or all keys are strings in upper case, else return false.
// The function should return false is the given object is empty.
// Examples:
// >>> check_dict_case({"a": "apple", "b": "banana"})
// true
// >>> check_dict_case({"a": "apple", "A": "bana... | return false; | }
}
return true;
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// You are given an array array list of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
... | String s3 = s1+s2; | String s4 = s2+s1;
int c1 = 0;
int c2 = 0;
for (int i = 0; i < s3.length(); i++) {
if (s3.charAt(i) == '(') c1 += 1;
else c1 -= 1;
if (c1 < 0) break;
}
for (int i = 0; i < s4.length(); i++) {
if (s4.charAt(i) == '(') c2 += 1... |
//prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// >>> prime_fib(1)
// 2
// >>> prime_fib(2)
// 3
// >>> prime_fib(3)
// 5
// >>> prime_fib(4)
// 13
// >>> prime_fib(5)
// 89
function prime_fib(n){
function isPrime(number){
if(number <= 3){
return number > 1;
... | } | }
return true;
}
}
function fib(num){
var a = 1, b = 0, temp;
while (num >= 0){
temp = a;
a = a + b;
b = temp;
num--;
}
return b;
}
var res = 0;
var fibNum = 0;
while(res < n... |
from typing import Union
def compare_one(a: Union[int, float, str], b: Union[int, float, str]) -> Union[int, float, str, None]:
"""
Create a function that takes integers, floats, or strings representing
real numbers, and returns the larger variable in its given variable type.
Return None if the values ... | elif isinstance(a, str) and isinstance(b, int): | a_tmp = a.replace(',', '.')
if float(a_tmp) > b:
return a
elif float(a_tmp) < b:
return b
else:
return None
elif isinstance(a, int) and isinstance(b, str):
b_tmp = b.replace(',', '.')
if a > float(b_tmp):
return a
... |
//You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses... | return false; | }
stack.pop();
}
}
return stack.length === 0;
};
const str1 = lst[0];
const str2 = lst[1];
if (is_good(str1 + str2)){
return 'Yes';
}
if (is_good(str2 + str1)){
return 'Yes';
}
return 'No';
} |
//Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// >>> split... | if(txt[i] == txt[i].toLowerCase()){ | count++;
}
}
}
return count;
}
} |
def is_multiply_prime(a: int) -> bool:
"""Write a function that returns true if the given number is the multiplication of 3 prime numbers
and false otherwise.
Knowing that (a) is less then 100.
Example:
>>> is_multiply_prime(30)
True
30 = 2 * 3 * 5
"""
n = a
d = 2
prime_fact... | if len(prime_factors) == 3: | return True
else:
return False
|
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Return 2^n modulo p (be aware of numerics).
// >>> modp((3l), (5l))
// (3l)
// >>> modp((1101l), (101l))
// (2l)
//... | return sqrt; | }
return (sqrt * 2) % p;
}
} |
//Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// >>> rescale_to_unit([1.0, 2.0, 3.0, 4.0, 5.0])
// [0.0, 0.25, 0.5, 0.75, 1.0]
function rescale_to_unit(numbers){
var min = Math.min.apply(Math, n... | var unit = []; | for (var i = 0; i < numbers.length; i++) {
unit.push((numbers[i] - min) / sub);
}
return unit;
}
|
//You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// >>> below_zero([1, 2, 3])
// false
// >... | } | |
from typing import List, Optional
def prod_signs(arr: List[int]) -> Optional[int]:
"""
You are given an array arr of integers and you need to return
sum of magnitudes of integers multiplied by product of all signs
of each number in the array, represented by 1, -1 or 0.
Note: return None for empty a... | elif num < 0: | sign_arr.append(-1)
else:
sign_arr.append(0)
return sum(map(abs, arr)) * product(sign_arr) |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group... | max_depth = Math.max(max_depth, current_depth); | } else if (c == ')') {
current_depth -= 1;
}
}
result.add(max_depth);
}
return result;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated.
... | } | |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
public st... | return count; | }
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// T... | } else if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) { | if (day < 1 || day > 31) return valid_date;
} else {
if (day < 1 || day > 30) return valid_date;
}
valid_date = true;
} catch (Exception e) {
valid_date = false;
}
return valid_date;
}
} |
//You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Ex... | return false; | }
for(var i = 2; i < number; i++){
if(number % i === 0){
isPrime = false;
break;
}
}
return isPrime;
}).join(' ');
} |
//You are given a string s.
// Your task is to check if the string is hapjs or not.
// A string is hapjs if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// >>> is_happy(a)
// false
// >>> is_happy(aa)
// false
// >>> is_happy(abcd)
// true
// >>> is_happy(aabb)
// false
// >>> i... | let happy = true; | if(s.length<3){
happy = false;
}
for(let i=2; i<s.length; i++){
if(s[i]===s[i-1] || s[i]===s[i-2]){
happy = false;
}
}
return happy;
} |
//Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... | } | result.push(factorial);
factorial = 1;
}else{
for(var k = 1; k <= i; k++){
sum += k;
}
result.push(sum);
sum = 0;
}
}
return result;
} |
//Given a grid with N rows and N columns (N >= 2) and a positive integer k,
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in e... | nextCell = curr; | }
}
currCell = nextCell;
}
return path;
} |
//Given a grid with N rows and N columns (N >= 2) and a positive integer k,
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in e... | for(let l = 0; l < k; l++){ | path.push(currCell);
let neighbours = [];
let x = null;
let y = null;
for(let i = 0; i < n; i++){
for(let j = 0; j < n; j++){
if(grid[i][j] === currCell){
x = i;
y = j;
}
}
}
... |
//Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return undefined if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// >>> compare_one(1, 2.5)
// 2.5
//... | return b; | } else {
return undefined;
}
}
else if (typeof a === "number" && typeof b === "string"){
if (a > b[0]){
return a;
} else if (a < b[0]){
return b;
} else {
return undefined;
}
}
}
|
def encrypt(s: str) -> str:
"""Create a function encrypt that takes a string as an argument and
returns a string encrypted with the alphabet being rotated.
The alphabet should be rotated in a manner such that the letters
shift down by two multiplied to two places.
For example:
>>> encrypt('hi'... | output_string = "" | for i in s:
output_string += input_string[(input_string.index(i)+4)%26]
return output_string
|
//Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// >>> change_base(8, 3)
// "22"
// >>> change_base(8, 2)
// "1000"
// >>> change_base(7, 2)
// "111"
function change_base(x, base){
| let r = x % base; | let q = Math.floor(x / base);
if (q === 0) return r.toString();
return change_base(q, base) + r.toString();
}
|
from typing import List
def count_nums(arr: List[int]) -> int:
"""
Write a function count_nums which takes an array of integers and returns
the number of elements which has a sum of digits > 0.
If a number is negative, then its first signed digit will be negative:
e.g. -123 has signed digits -1, 2,... | s += int(j) | if s > 0:
n += 1
return n
|
//Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return undefined in case the input array is empty.
// >>> longest([])
// undefined
// >>> longest(["a", "b", "c"])
// "a"
// >>> longest(["a", "bb", "ccc"])
// "ccc"
function longest(strings){
va... | } | |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// You're given an array array list of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task... | } | return false;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Return median of elements in the array list l.
// >>> median((new ArrayList<Long>(Arrays.asList((long)3l, (long)1l, (long)2l, (long... | } | |
//Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// >>> count_up_to(5)
// [2, 3]
// >>> count_up_to(11)
// [2, 3, 5, 7]
// >>> count_up_to(0)
// []
// >>> count_up_to(20)
// [2, 3, 5, 7, 11, 13, 17, 19]
// >... | break; | }
}
if (prime) output.push(i);
}
return output;
}
|
//You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return undefined for empty arr.
// Example:
// >>> prod_signs([1, 2, 2, -4])
// 9
// >>> prod_signs([0, 1])
// 0
// >>> ... | var pro = 1; | if(len == 0){
return undefined;
}
else{
for(var i = 0; i < len; i++){
total += Math.abs(arr[i]);
if(arr[i] < 0){
pro *= -1;
}
else if(arr[i] == 0){
pro *= 0;
}
}
total *= pro;
return total;
... |
//Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// >>> string_xor("010", "110")
// "100"
function string_xor(a, b){
var arrayA = [];
var arrayB = []; | var arrayXOR = []; | var result = '';
for (var i = 0; i < a.length; i++) {
arrayA.push(parseInt(a[i]));
}
for (var j = 0; j < b.length; j++) {
arrayB.push(parseInt(b[j]));
}
for (var k = 0; k < arrayA.length; k++) {
if (arrayA[k] !== arrayB[k]) {
arrayXOR.push(1);
}
else {
arrayXOR.push(0);
}... |
//Given an array arr of integers and a positive integer k, return a sorted array
// of length k with the maximum k numbers in arr.
// Example 1:
// >>> maximum([-3, -4, 5], 3)
// [-4, -3, 5]
// Example 2:
// >>> maximum([4, -4, 4], 2)
// [4, 4]
// Example 3:
// >>> maximum([-3, 2, 1, 2, -1, -2, 1], 1)
// [2]
// Note:
... | if(len === 1) return arr; | return arr.sort((a, b) => a - b).slice(len - k);
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Return maximum element in the array list.
// >>> maxElement((new ArrayList<Long>(Arrays.asList((long)1l, (long)2l, (long)3l))))
... | Long max = Long.MIN_VALUE; | for (int i = 0; i < l.size(); i += 1) {
if (l.get(i) > max) {
max = l.get(i);
}
}
return max;
}
} |
//Return true if all numbers in the array l are below threshold t.
// >>> below_threshold([1, 2, 4, 10], 100)
// true
// >>> below_threshold([1, 20, 4, 10], 5)
// false
function below_threshold(l, t){
return l.every(x => x < t); | } | |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// We have an array array list 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array array list will be randomly... | copy.add(0, last); | if (copy.equals(sorted)) return true;
arr = copy;
}
return false;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// "
// This function will take an array array list of integers. For all entries in the array list, the function shall square the inte... | int sz = lst.size(); | for (int i = 0; i < sz; i++) {
if (i % 3 == 0) {
lst.set(i, lst.get(i) * lst.get(i));
} else if (i % 4 == 0) {
lst.set(i, lst.get(i) * lst.get(i) * lst.get(i));
}
}
long ans = 0;
for (int i = 0; i < sz; i++) {
... |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Return maximum element in the array list.
// >>> maxElement((new ArrayList<Long>(Arrays.asList((long)1l, (long)2l, (long)3l))))
... | } | }
return max;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// >>> howManyTimes((""), ("a"))... | index = string.indexOf(substring, index); | if (index != -1) {
index++;
count++;
}
}
return count;
}
} |
from typing import Optional
def string_to_md5(text: str) -> Optional[str]:
"""
Given a string 'text', return its md5 hash equivalent string.
If 'text' is an empty string, return None.
>>> string_to_md5('Hello world')
'3e25960a79dbc69b674cd4ec67a72c62'
"""
import hashlib
if not text:
... | return hashlib.md5(text.encode('utf-8')).hexdigest() | |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// We have an array array list 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array array list will be randomly... | if (copy.equals(sorted)) return true; | arr = copy;
}
return false;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given a string s and a natural number n, you have been tasked to implement
// a function that returns an array array list of all w... | case 'u': | break;
default:
consonants++;
break;
}
}
if (consonants == n) {
ret.add(word);
}
}
return ret;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group... | } else if (c == ')') { | current_depth -= 1;
}
}
result.add(max_depth);
}
return result;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algo... | } | } |
//Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// >>> factorize(8)
// [2, 2, 2]
// >>> factorize(2... | } else { | factor++;
}
}
return arr;
}
|
//This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If
// there's no such number, then the function should return -1.
// For example:
// >>> choose_num(12, 15)
// 14
// >>> choose_num(13, 12)
// -1
function choose_num(x, y){
var num ... | } | }
return num;
}
|
//Given an array arr of integers and a positive integer k, return a sorted array
// of length k with the maximum k numbers in arr.
// Example 1:
// >>> maximum([-3, -4, 5], 3)
// [-4, -3, 5]
// Example 2:
// >>> maximum([4, -4, 4], 2)
// [4, 4]
// Example 3:
// >>> maximum([-3, 2, 1, 2, -1, -2, 1], 1)
// [2]
// Note:
... | var len = arr.length; | if(len === 0) return null;
if(len === 1) return arr;
return arr.sort((a, b) => a - b).slice(len - k);
} |
def is_multiply_prime(a: int) -> bool:
"""Write a function that returns true if the given number is the multiplication of 3 prime numbers
and false otherwise.
Knowing that (a) is less then 100.
Example:
>>> is_multiply_prime(30)
True
30 = 2 * 3 * 5
"""
n = a
d = 2
prime_fact... | else: | return False
|
//brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// >>> correct_bracketing("(")
// false
// >>> correct_bracketing("()")
// true
// >>> correct_bracketing("(()())")
// true
// >>> correct_bracketing(")(()")
// false
function correct_bracketing(brackets)... | return false; | }
}
}
if (opens.length == 0){
return true;
}
else {
return false;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into s... | if (open_paren == 0) { | temp = new StringBuffer();
}
open_paren++;
temp.append(c);
} else if (c == ')') {
open_paren--;
temp.append(c);
if (open_paren == 0) {
output.add(temp.toString());
}
}
}
return output;
}
} |
//You are given a word. Your task is to find the closest vowel that stands between
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition.
// You may assume that the given stri... | if (word.length === 1) { | return ""
} else {
while (i >= 0) {
if (vowels.includes(word[i])) {
if (i > 0 && i < word.length - 1) {
if (!vowels.includes(word[i-1]) && !vowels.includes(word[i+1])) {
result.push(word[i]);
}
... |
//You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k,
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// >>> get_max_triples(5)
// 1
// Ex... | for(let j = i+1; j<arr.length; j++){ | for(let k = j+1; k<arr.length; k++){
if((arr[i]+arr[j]+arr[k])%3 === 0){
result++;
}
}
}
}
return result;
}
|
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given a hash map, return true if all keys are strings in lower
// case or all keys are strings in upper case, else return false.
... | } | |
//You have been tasked to write a function that receives
// a hexadecimal number as a string and counts the number of hexadecimal
// digits that are primes (prime number, or a prime, is a natural number
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, ... | if(primes.includes(num[x])){ | result += 1;
}
}
return result;
} |
//For a given number n, find the largest number that divides n evenly, smaller than n
// >>> largest_divisor(15)
// 5
function largest_divisor(n){
let ld = 0;
for(i=1; i<n; i++){
if(n%i===0){
if(i>ld){ | ld = i; | }
}
}
return ld;
} |
from typing import List
def total_match(lst1: List[str], lst2: List[str]) -> List[str]:
"""
Write a function that accepts two lists of strings and returns the list that has
total number of chars in the all strings of the list less than the other list.
if the two lists have the same number of chars, r... | count1 = sum([len(s) for s in lst1]) | count2 = sum([len(s) for s in lst2])
if count1 == count2:
return lst1
if count1 < count2:
return lst1
return lst2
|
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Implement the function f that takes n as a parameter,
// and returns an array array list of size n, such that the value of the elem... | } | return ret;
}
} |
from typing import List
def below_zero(operations: List[int]) -> bool:
""" You're given a list of deposit and withdrawal operations on a bank account that starts with
zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
at that point function should return True... | balance = 0 | for operation in operations:
balance += operation
if balance < 0:
return True
return False
print(below_zero([1, 2, 3]))
print(below_zero([1, 2, -4, 5])) |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algo... | } else if (currentGrade > 0.0f) { | letterGrades.add("D-");
} else {
letterGrades.add("E");
}
}
return letterGrades;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// "Given an array array list representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the ... | } | }
ArrayList<Long> newArr = new ArrayList<Long>();
if (minIndex == -1) {
return newArr;
}
newArr.add(minValue);
newArr.add((long)minIndex);
return newArr;
}
} |
//You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// >>> skjkasdkd([0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3])
// 10
// >>> skjkasdkd([1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1])
// 25
// >>> skj... | return true; | }
let max = Math.max(...lst.filter(x=>prime(x)));
let digits = String(max).split('');
let sum = 0;
for (let i=0; i<digits.length; i++){
sum += Number(digits[i]);
}
return sum;
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given an array array list of numbers, return whether or not they are sorted
// in ascending order. If array list has more than 1 du... | return true; | }
}
} |
//Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// >>> is_sorted([5])
// true
// >>> is_sorted([1, 2, 3, 4, 5])
// true
// >>> is_sorted([1, 3, 2, 4... | dupe_found = true; | }
} else {
last = x;
dupe_found = false;
}
}
return true;
}
|
//A simple program which should return the value of x if n is
// a prime number and should return the value of y otherwise.
// Examples:
// >>> x_or_y(7, 34, 12)
// 34
// >>> x_or_y(15, 8, 5)
// 5
function x_or_y(n, x, y){
if(n<2){
return y;
} | for(var i=2; i<n; i++){ | if(n%i==0){
return y;
}
}
return x;
} |
def encode(message: str) -> str:
"""
Write a function that takes a message, and encodes in such a
way that it swaps case of all letters, replaces all vowels in
the message with the letter that appears 2 places ahead of that
vowel in the english alphabet.
Assume only letters.
Exampl... | return ''.join(map(lambda ch: encode_vowel(swap_case(ch)), message)) | |
//Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// >>> by_length([2, 1, 1, 4, 5, 8, 2, 3])
// ["Eight"... | for(var i = 0; i < arr.length; i++){ | var num = arr[i];
if(num > 0 && num < 10){
arr2.push(num);
}
}
arr2.sort();
arr2.reverse();
var arr3 = [];
for(var i = 0; i < arr2.length; i++){
var num = arr2[i];
if(num == 1){
arr3.push("One");
}
else if(num == 2){
... |
//Given a string representing a space separated lowercase letters, return an object
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// >>> histogram("a b c")
// {"a": 1, "b": 1, "c": 1}
// >>> histogram("a ... | count[lst[i]] = 1; | }
}
console.log(count);
var max = 0;
var result = {};
for (var key in count){
if (count[key] > max){
max = count[key];
result = {};
result[key] = max;
}
else if (count[key] === max){
result[key] = max;
}
}
return result;
}
|
//Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// >>> find_max(["name", "of", "string"])
/... | for(var i = 0; i < words.length; i++){ | var unique_word = {};
var word = words[i];
for(var j = 0; j < word.length; j++){
var char = word[j];
if(unique_word[char] === undefined){
unique_word[char] = 1;
}
}
if(max_unique_word === ""){
max_unique_word = word;... |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <=... | if (num >= 50) { | res += "l";
num -= 50;
}
if (num >= 40) {
res += "xl";
num -= 40;
}
while (num >= 10) {
res += "x";
num -= 10;
}
if (num >= 9) {
res += "ix";
num -= 9;
}
if (nu... |
from typing import Dict
def histogram(test: str) -> Dict[str, int]:
"""Given a string representing a space separated lowercase letters, return a dictionary
of the letter with the most repetition and containing the corresponding count.
If several letters have the same occurrence, return all of them.
... | result[letter] = most_count | return result
|
from typing import List
def triples_sum_to_zero(l: List[int]) -> bool:
"""
triples_sum_to_zero takes a list of integers as an input.
it returns True if there are three distinct elements in the list that
sum to zero, and False otherwise.
>>> triples_sum_to_zero([1, 3, 5, 0])
False
>>> tripl... | return False | |
//Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// >>> split... | let count = 0; | for(let i = 0; i < txt.length; i++){
if(i % 2 != 0){
if(txt[i] == txt[i].toLowerCase()){
count++;
}
}
}
return count;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into s... | } | open_paren++;
temp.append(c);
} else if (c == ')') {
open_paren--;
temp.append(c);
if (open_paren == 0) {
output.add(temp.toString());
}
}
}
return output;
}
} |
//Given a grid with N rows and N columns (N >= 2) and a positive integer k,
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in e... | } | if(x > 0){
neighbours.push(grid[x - 1][y]);
}
if(x < n - 1){
neighbours.push(grid[x + 1][y]);
}
if(y > 0){
neighbours.push(grid[x][y - 1]);
}
if(y < n - 1){
neighbours.push(grid[x][y + 1]);
}
let next... |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <=... | return res; | }
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of ... | break; | }
}
return newString.toString();
}
} |
//Filter an input array of strings only for ones that start with a given prefix.
// >>> filter_by_prefix([], "a")
// []
// >>> filter_by_prefix(["abc", "bcd", "cde", "array"], "a")
// ["abc", "array"]
function filter_by_prefix(strings, prefix){
return strings.filter( function(str){ | return str.startsWith(prefix); | });
}
|
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given a string s and a natural number n, you have been tasked to implement
// a function that returns an array array list of all w... | } | return ret;
}
} |
def digits(n: int) -> int:
"""Given a positive integer n, return the product of the odd digits.
Return 0 if all digits are even.
For example:
>>> digits(1)
1
>>> digits(4)
0
>>> digits(235)
15
"""
if n < 10: | return n if n % 2 == 1 else 0 | d, m = divmod(n, 10)
return digits(d) * (m if m % 2 == 1 else 1)
|
//Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// >>> int_to_mini_roman(19)
// "xix"
// >>> int_to_mini_roman(152)
// "clii"
// >>> int_to_mini_roman(426)
// "cdxxvi"
function int_to_mini_roman(number){
var r... | 9: "ix", | 5: "v",
4: "iv",
1: "i"
};
var output = "";
while (number > 0){
var key_list = Object.keys(roman_conversion).map(Number);
key_list.sort(function(a, b){return b-a});
for (var i = 0; i < key_list.length; i++){
if (key_list[i] <= number){
... |
from typing import List
def will_it_fly(q: List[int], w: int) -> bool:
"""
Write a function that returns True if the object q will fly, and False otherwise.
The object q will fly if it's balanced (it is a palindromic list) and the sum of its elements is less than or equal the maximum possible weight w.
... | return s <= w and q == q[::-1] | |
//You are given a string s.
// Your task is to check if the string is hapjs or not.
// A string is hapjs if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// >>> is_happy(a)
// false
// >>> is_happy(aa)
// false
// >>> is_happy(abcd)
// true
// >>> is_happy(aabb)
// false
// >>> i... | } | return happy;
} |
//You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Ex... | for(var i = 2; i < number; i++){ | if(number % i === 0){
isPrime = false;
break;
}
}
return isPrime;
}).join(' ');
} |
//Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// >>> will_it_fly([1, 2], 5)
// false
// # 1+2 is less than the maximum ... | for(let i = 0; i < q.length; i++){ | if(q[i] !== q[q.length - 1 - i]){
balanced = false;
break;
}
}
return balanced && sum <= w;
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// You are given a positive integer n. You have to create an integer array array list a of length n.
// For each i (1 ≤ i ≤ n), the va... | } | |
def correct_bracketing(brackets: str) -> bool:
""" brackets is a string of "(" and ")".
return True if every opening bracket has a corresponding closing bracket.
>>> correct_bracketing('(')
False
>>> correct_bracketing('()')
True
>>> correct_bracketing('(()())')
True
>>> correct_bra... | for char in brackets: | if char == '(':
count += 1
elif char == ')':
count -= 1
if count < 0:
return False
return count == 0
|
from typing import Union
def compare_one(a: Union[int, float, str], b: Union[int, float, str]) -> Union[int, float, str, None]:
"""
Create a function that takes integers, floats, or strings representing
real numbers, and returns the larger variable in its given variable type.
Return None if the values ... | elif a < b: | return b
else:
return None
elif isinstance(a, str) and isinstance(b, int):
a_tmp = a.replace(',', '.')
if float(a_tmp) > b:
return a
elif float(a_tmp) < b:
return b
else:
return None
elif isinstance(a, int) and i... |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// This function takes an array array list l and returns an array array list l' such that
// l' is identical to l in the indicies that... | } else { | l_s.add(l_r.get(i - j));
}
}
return l_s;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// This function takes an array array list l and returns an array array list l' such that
// l' is identical to l in the indicies that... | if (i % 3 == 0) { | l_e.add(l.get(i));
} else {
l_r.add(l.get(i));
}
}
for (int i = 0; i < l_e.size(); i++) {
long min = l_e.get(i);
for (int j = i; j < l_e.size(); j++) {
if (l_e.get(j) < min) {
min = l_e.ge... |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right; simultaneously, a different ... | } | |
//triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// >>> triples_sum_to_zero([1, 3, 5, 0])
// false
// >>> triples_sum_to_zero([1, 3, -2, 1])
// true
// >>> triples_sum_to_zero([1, 2, 3, 7])
// fal... | return true; | }
}
}
}
}
return false;
}
|
//Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// >>> find_max(["name", "of", "string"])
/... | if(max_unique_word === ""){ | max_unique_word = word;
max_unique = unique_word;
}
else if(Object.keys(unique_word).length > Object.keys(max_unique).length){
max_unique_word = word;
max_unique = unique_word;
}
else if(Object.keys(unique_word).length === Object.keys(max_u... |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately pr... | long p = -1l; | for (int i = arr.size() - 1; i > 0; i--) {
if (arr.get(i) < arr.get(i - 1)) {
p = (long)i;
break;
}
}
return p;
}
} |
import java.util.*;
import java.lang.reflect.*;
import org.javatuples.*;
import java.security.*;
import java.math.*;
import java.io.*;
import java.util.stream.*;
class Problem {
// Given a positive integer n, return a sorted array list that has the odd numbers in collatz sequence.
// The Collatz conjecture is a... | n1 = n1 % 2 == 0 ? n1 / 2 : 3 * n1 + 1; | }
odds.add(1l);
Long[] odds_arr = odds.toArray(new Long[odds.size()]);
ArrayList<Long> ans = new ArrayList<Long>(Arrays.asList(odds_arr));
Collections.sort(ans);
return ans;
}
} |
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