prefix stringlengths 0 918k | middle stringlengths 0 812k | suffix stringlengths 0 962k |
|---|---|---|
//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 < s.length; index += 2){
if (vowel.indexOf(s[index]) > -1){
result += 1;
}
}
return result;
} |
//Given two arrays operator, and operand. The first array has basic algebra operations, and
// the second array is an array of integers. Use the two given arrays to build the algebric
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + )
// Subtraction ( - )
... | let temp; | let answer;
while(count < operator.length){
switch(operator[count]){
case '*':
operand[count] = operand[count] * operand[count + 1];
operand.splice(count + 1, 1);
operator.splice(count, 1);
count = 0;
do_again = true;
break;
case '//':
operand[... |
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 takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all word... | Arrays.sort(chars); | sb.append(new String(chars));
sb.append(" ");
}
sb.deleteCharAt(sb.length() - 1);
return sb.toString();
}
} |
//Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return an array containing the result string and true/fa... | const filter = s.split('').filter(x => c.includes(x) === false); | const filterString = filter.join('');
const filterStringReverse = filter.reverse().join('');
const result = [];
if (filterString === filterStringReverse) {
result.push(filterString, true);
} else {
result.push(filterString, false);
}
return result;
} |
//Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be... | } | else{
if(a < b){
return -1;
}
else if(a > b){
return 1;
}
else{
return 0;
}
}
});
}
var a = ["aa", "a", "aaa"];
var b = ["ab", "a", "aaa", "cd"]; |
def starts_one_ends(n: int) -> int:
"""
Given a positive integer n, return the count of the numbers of n-digit
positive integers that start or end with 1.
"""
count = 0
for i in range(10**(n-1), 10**n):
if i // 10**(n-1) == 1 or i % 10 == 1: | count += 1 | return count
|
//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... | } | 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 {
// Return median of elements in the array list l.
// >>> median((new ArrayList<Long>(Arrays.asList((long)3l, (long)1l, (long)2l, (long... | float ret = 0; | Collections.sort(l);
int size = l.size();
if (size % 2 == 0) {
ret = (l.get(size / 2) + l.get(size / 2 - 1)) / 2f;
} else {
ret = l.get(size / 2);
}
return ret;
}
} |
//Filter an input array of strings only for ones that contain given substring
// >>> filter_by_substring([], "a")
// []
// >>> filter_by_substring(["abc", "bacd", "cde", "array"], "a")
// ["abc", "bacd", "array"]
function filter_by_substring(strings, substring){
var filtered = [];
for(var i = 0; i < strings.len... | filtered.push(strings[i]); | }
}
return filtered;
} |
//Return array of all prefixes from shortest to longest of the input string
// >>> all_prefixes("abc")
// ["a", "ab", "abc"]
function all_prefixes(string){
var result = [];
for (var i = 1; i <= string.length; i++){
result.push(string.slice(0, i)); | } | 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 given number is the multiplication of 3 prime numbers
// and false otherwise.
// Know... | } | |
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, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of st... | } | |
//Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - qu... | let songs = music_string.split(' '); | let song = [];
songs.forEach(s => {
if(s === 'o'){
song.push(4);
}else if(s === 'o|'){
song.push(2);
}else if(s === '.|'){
song.push(1);
}
});
return song;
}
|
from typing import List
def f(n: int) -> List[int]:
""" Implement the function f that takes n as a parameter,
and returns a list 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... | else: | a.append(sum(range(1,i+1)))
return a
pass |
from typing import Dict
def check_dict_case(dict: Dict[str, str]) -> bool:
"""
Given a dictionary, 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 dictionary is empty.
Examples:
>>> check_... | return True | |
//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 sentence.split(' ').filter(word => { | var number = word.length;
var isPrime = true;
if(number === 1 || number === 0){
return false;
}
for(var i = 2; i < number; i++){
if(number % i === 0){
isPrime = false;
break;
}
}
return isPrime;
... |
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 ... | if c == '(': | open_count += 1
elif c == ')':
open_count -= 1
group += c
if open_count == 0:
groups.append(group)
group = ''
return groups
|
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 takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and return... | count++; | }
}
if (count > 3) {
return result;
}
if (name.length() == 0) {
return result;
}
if (!Character.isLetter(name.charAt(0))) {
return result;
}
return "Yes";
}
} |
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... | for (int i = 0; i < sz; i++) { | ans += lst.get(i);
}
return ans;
}
} |
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 sorted unique elements in an array array list
// >>> unique((new ArrayList<Long>(Arrays.asList((long)5l, (long)3l, (long)5l,... | } | } |
//From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// >>> rolling_max([1, 2, 3, 2, 3, 4, 2])
// [1, 2, 3, 3, 3, 4, 4]
function rolling_max(numbers){
let max = [];
let tempMax = 0;
for(let i = 0; i < numbers.length; i++){
if(tem... | } | |
//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 algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write
// a function that ca... | grades_array.push("D-"); | }
else if (grades[i] == 0.0){
grades_array.push("E");
}
}
return grades_array;
} |
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... | } | } |
def triangle_area(a: int, b: int, c: int) -> float:
"""
Given the lengths of the three sides of a triangle. Return the area of
the triangle rounded to 2 decimal points if the three sides form a valid triangle.
Otherwise return -1
Three sides make a valid triangle when the sum of any two sides is gr... | else: | return -1
|
def get_max_triples(n: int) -> int:
"""
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 multipl... | j += 1 | k = j + 1
i += 1
j = i + 1
k = j + 1
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 {
// Write a function that accepts an array array list of strings as a parameter,
// deletes the strings that have odd lengths from it,
... | result.add(s); | }
}
Collections.sort(result, new Comparator<String>() {
@Override
public int compare(String s1, String s2) {
if (s1.length() == s2.length()) {
return s1.compareTo(s2);
}
return s1.length() - s2.length... |
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 {
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// >>> correc... | if (c == '<') { | open++;
} else {
open--;
}
if (open < 0) {
return false;
}
}
return open == 0;
}
} |
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 true if all numbers in the array list l are below threshold t.
// >>> belowThreshold((new ArrayList<Long>(Arrays.asList((lon... | } | return true;
}
} |
//Write a function that takes an array of numbers as input and returns
// the number of elements in the array that are greater than 10 and both
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// >>> specialFilter([15, -73, 14, -15])
// 1
// >>> specialFilter([33, -2, -3, 45, 21, 109])
//... | let num = nums[i]; | let firstDigit = nums[i].toString()[0];
let lastDigit = nums[i].toString()[nums[i].toString().length - 1];
if(num > 10 && firstDigit % 2 !== 0 && lastDigit % 2 !== 0){
count++;
}
}
return count;
}
|
def vowels_count(s: str) -> int:
"""Write a function vowels_count which takes a string representing
a word as input and returns the number of vowels in the string.
Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
vowel, but only when it is at the end of the given word.
Example:
... | i = 0 | count = 0
while i < len(s):
if (s[i] == 'a' or s[i] == 'e' or s[i] == 'i' or s[i] == 'o' or s[i] == 'u'):
count += 1
if (s[i] == 'y' and i == len(s) - 1):
count += 1
i += 1
return count
|
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)
|
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 odd indicies,... | index++; | }
Collections.sort(evenIndexed);
index = 0;
for (Long num : l) {
if (index % 2 == 0) {
res.add(evenIndexed.get(0));
evenIndexed.remove(0);
} else {
res.add(num);
}
index++;
}
r... |
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 accepts an array array list of strings.
// The array list contains different words. Return the word with maxi... | }); | return words.get(0);
}
} |
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 {
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// >>> correc... | } else { | balance--;
}
if (balance < 0) {
return false;
}
}
return balance == 0;
}
} |
//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... | } | return output;
}
|
//Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// >>> closest_integer("10")
// 10
// >>> closest_integer("15.3")
// 15
// Note:
// Rounding away from zero means that i... | }else{ | return Math.ceil(value);
}
}else{
if(value - Math.floor(value) > -0.5){
return Math.floor(value);
}else{
return Math.ceil(value);
}
}
}
|
def file_name_check(file_name: str) -> str:
"""Create a function which takes a string representing a file's name, and returns
'Yes' if the the file's name is valid, and returns 'No' otherwise.
A file's name is considered to be valid if and only if all the following conditions
are met:
- There shoul... | return 'No' | s_name = file_name.split('.')[0]
e_name = file_name.split('.')[1]
if not s_name or not e_name or not s_name[0].isalpha():
return 'No'
if e_name not in ['txt', 'exe', 'dll']:
return 'No'
return 'Yes'
|
//We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing
// the following operation on the given array:
// You are allowed to perform right shift o... | else{ | 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 = 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 {
// From an array array list of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in ... | hashmap.put(key, hashmap.get(key) + 1); | } else {
hashmap.put(key, 1L);
}
}
ArrayList<Long> out = new ArrayList<Long>();
for (int i = 0; i < numbers.size(); i++) {
Long key = numbers.get(i);
if (hashmap.get(key) == 1) {
out.add(key);
}
}... |
def count_distinct_characters(string: str) -> int:
""" Given a string, find out how many distinct characters (regardless of case) does it consist of
>>> count_distinct_characters('xyzXYZ')
3
>>> count_distinct_characters('Jerry')
4
"""
assert isinstance(string, str)
s = set()
for l i... | s.add(l.lower()) | return len(s)
|
from typing import List
def sum_squares(lst: List[float]) -> int:
"""You are given a list of numbers.
You need to return the sum of squared numbers in the given list,
round each element in the list to the upper int(Ceiling) first.
Examples:
>>> lst([1.0, 2.0, 3.0])
14
>>> lst([1.0, 4.0, 9.0... | lst[i] = math.ceil(lst[i]) | total = 0
for i in lst:
total += i**2
return total |
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 true is array list elements are monotonically increasing or decreasing.
// >>> monotonic((new ArrayList<Long>(Arrays.asList(... | boolean dec = true; | for (int i = 1; i < l.size(); i++) {
if (l.get(i) < a) {
inc = false;
}
if (l.get(i) > a) {
dec = false;
}
a = l.get(i);
}
return inc || dec;
}
} |
//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 ... | } | }
return result;
} |
def words_in_sentence(sentence: str) -> str:
"""
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 t... | if is_prime(len(word)): | prime_words.append(word)
return ' '.join(prime_words) |
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 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;
else c2 -= 1;... |
//The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequen... | } | |
//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... | } | } else {
last = x;
dupe_found = false;
}
}
return true;
}
|
//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")
// "lm"
// >>> encrypt("asdfghjkl")
... | } | |
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 will be given the name of a class (a string) and an array array list of extensions.
// The extensions are to be used to load ad... | int diff = cap - sm; | if (diff > strength) {
strength = diff;
strongest = s;
}
}
return class_name + "." + strongest;
}
} |
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... | String[] paren_strings = paren_string.split(" "); | for (String paren : paren_strings) {
long max_depth = 0;
long current_depth = 0;
for (char c : paren.toCharArray()) {
if (c == '(') {
current_depth += 1;
max_depth = Math.max(max_depth, current_depth);
} ... |
//You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// >>> is_bored("Hello world")
// 0
// >>> is_bored("The sky is blue. The sun is shining. I love this weather")
... | } | return boredoms;
}
|
def is_happy(s: str) -> bool:
"""You are given a string s.
Your task is to check if the string is happy or not.
A string is happy 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)
... | else: | for i in range(n - 2):
if s[i] == s[i + 1] or s[i] == s[i + 2] or s[i + 1] == s[i + 2]:
return False
return True
|
def is_simple_power(x: int, n: int) -> bool:
"""Your task is to write a function that returns true if a number x is a simple
power of n and false in other cases.
x is a simple power of n if n**int=x
For example:
>>> is_simple_power(1, 4)
true
>>> is_simple_power(2, 2)
true
>>> is_sim... | return True | |
def get_closest_vowel(word: str) -> str:
"""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 a... | for i in range(len(word) - 2, 0, -1): | if word[i] in 'aeiouAEIOU' and word[i-1] not in 'aeiouAEIOU' and word[i+1] not in 'aeiouAEIOU':
return word[i]
return ''
|
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 > 0.7f) { | letterGrades.add("D");
} 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 {
// 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... | ArrayList<Long> ret = new ArrayList<Long>(); | for (long i = 1l; i <= n; i++) {
long v = 0l;
if (i % 2 == 0) {
v = 1l;
for (long j = 2l; j <= i; j++) {
v *= j;
}
} else {
v = (i * (i + 1l)) / 2l;
}
ret.add(v);
... |
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 {
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a ... | String[] nums = x.split("/"); | String[] n_nums = n.split("/");
int x_num = Integer.parseInt(nums[0]);
int n_num = Integer.parseInt(n_nums[0]);
int x_denom = Integer.parseInt(nums[1]);
int n_denom = Integer.parseInt(n_nums[1]);
int res_num = x_num * n_num;
int res_denom = x_denom * n_denom;
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 {
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and return... | String name = tokens[0]; | int count = 0;
for (int i = 0; i < name.length(); i++) {
if (Character.isDigit(name.charAt(i))) {
count++;
}
}
if (count > 3) {
return result;
}
if (name.length() == 0) {
return result;
}
if (... |
//Given a positive integer n, return an array that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// >>> even_odd_palindrome(3)
// [1, 2]
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// >>... | var even = 0; | for(var i = 0; i < pal.length; i++){
if(pal[i] % 2 == 0){
even++;
}
else{
odd++;
}
}
return [even, odd];
} |
def is_bored(S: str) -> int:
"""
You'll be given a string of words, and your task is to count the number
of boredoms. A boredom is a sentence that starts with the word "I".
Sentences are delimited by '.', '?' or '!'.
For example:
>>> is_bored('Hello world')
0
>>> is_bored('The sky is... | for sentence in sentences: | words = sentence.split()
if words and words[0] == 'I':
boredoms += 1
return boredoms
|
def special_factorial(n: int) -> int:
"""The Brazilian factorial is defined as:
brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
where n > 0
For example:
>>> special_factorial(4)
288
The function will receive an integer as input and should return the special
factorial of this i... | def factorial(n): | if n <= 1:
return 1
else:
return n * factorial(n-1)
if n <= 1:
return 1
else:
return n * special_factorial(n-1) * factorial(n-1)
|
//You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it,
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
... | } | |
//Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// >>> double_the_difference([1, 3, 2, 0])
// 10
// >>> double_the_difference([-1, -2, 0])
// 0
// >>> double_the_difference([9, -2])
// 81
// >>> double_the_difference([... | sum += lst[i] ** 2; | }
}
return sum;
}
|
//Given two arrays operator, and operand. The first array has basic algebra operations, and
// the second array is an array of integers. Use the two given arrays to build the algebric
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + )
// Subtraction ( - )
... | } | |
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 rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of wa... | } | |
//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... | } | 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';
} |
from typing import List
def incr_list(l: List[int]) -> List[int]:
"""Return list with elements incremented by 1.
>>> incr_list([1, 2, 3])
[2, 3, 4]
>>> incr_list([5, 3, 5, 2, 3, 3, 9, 0, 123])
[6, 4, 6, 3, 4, 4, 10, 1, 124]
"""
res = []
for i in l: | res.append(i + 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 {
// You are given an array array list of integers.
// You need to find the largest prime value and return the sum of its digits.
//... | largestPrime /= 10; | }
return output;
}
}
} |
//Return 2^n modulo p (be aware of numerics).
// >>> modp(3, 5)
// 3
// >>> modp(1101, 101)
// 2
// >>> modp(0, 101)
// 1
// >>> modp(3, 11)
// 8
// >>> modp(100, 101)
// 1
function modp(n, p){
| var result = 1; | while(n>0){
result = (result*2)%p;
n--;
}
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 {
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa,
// otherwise keep it as ... | sb.append(Character.toUpperCase(s.charAt(i))); | }
} else {
sb.append(s.charAt(i));
}
}
if (letterNotFound) {
return sb.reverse().toString();
}
return sb.toString();
}
} |
def greatest_common_divisor(a: int, b: int) -> int:
""" Return a greatest common divisor of two integers a and b
>>> greatest_common_divisor(3, 5)
1
>>> greatest_common_divisor(25, 15)
5
"""
if a > b:
a, b = b, a | if a == 0: | return b
return greatest_common_divisor(b % a, a)
|
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 string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to re... | if (word.length() == prime) { | isPrime = true;
break;
}
}
if (isPrime) {
ans.append(word + " ");
}
}
if (ans.length() > 0) {
ans.deleteCharAt(ans.length() - 1);
}
return ans.toString();
}
} |
//Given a positive integer n, return an array that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// >>> even_odd_palindrome(3)
// [1, 2]
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// >>... | } | }
var odd = 0;
var even = 0;
for(var i = 0; i < pal.length; i++){
if(pal[i] % 2 == 0){
even++;
}
else{
odd++;
}
}
return [even, odd];
} |
//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 collatz_sequence = [] | 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(coll... |
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 <=... | while (num >= 100) { | res += "c";
num -= 100;
}
if (num >= 90) {
res += "xc";
num -= 90;
}
if (num >= 50) {
res += "l";
num -= 50;
}
if (num >= 40) {
res += "xl";
num -= 40;
}
while ... |
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 array list of integers, return array list in strange order.
// Strange sorting, is when you start with the minimum value,
... | while (min <= max) { | result.add(sorted.get(min));
min++;
if (min <= max) {
result.add(sorted.get(max));
max--;
}
}
return result;
}
} |
//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"... | arr3.push("Nine"); | }
}
return arr3;
} |
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 {
// In this Kata, you have to sort an array array list of non-negative integers according to
// number of ones in their binary represen... | } | if (b1 < 0) {
b1 = -b1;
}
return Long.bitCount(a1) == Long.bitCount(b1) ? Long.compare(a, b) : Integer.compare(Long.bitCount(a1), Long.bitCount(b1));
});
return 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 {
// Given an array array list of positive integers x. return a sorted array list of all
// elements that hasn't any even digit.
//... | unique = false; | break;
}
z = z / 10;
}
if (unique) {
b.add(x.get(i));
}
}
Collections.sort(b);
return b;
}
} |
from typing import List
def sum_squares(lst: List[float]) -> int:
"""You are given a list of numbers.
You need to return the sum of squared numbers in the given list,
round each element in the list to the upper int(Ceiling) first.
Examples:
>>> lst([1.0, 2.0, 3.0])
14
>>> lst([1.0, 4.0, 9.0... | import math | for i in range(len(lst)):
lst[i] = math.ceil(lst[i])
total = 0
for i in lst:
total += i**2
return total |
//For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// >>> flip_case("Hello")
// "hELLO"
function flip_case(string){
var result = "";
for(var i = 0; i < string.length; i++){ | if(string[i] == string[i].toUpperCase()){ | result += string[i].toLowerCase();
}else{
result += string[i].toUpperCase();
}
}
return result;
}
|
//Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions
// are met:
// - There should not be more than three digits ('0'-'9') in the file... | if (file_name.includes('.') && /[a-zA-Z]/.test(str_1[0]) && | (str_2 == 'txt' || str_2 == 'exe' || str_2 == 'dll') && str_1.length != 0 &&
str_3.filter(item => /[0-9]/.test(item)).length < 4) {
return 'Yes';
}
return 'No';
}
|
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 a function that takes an non-negative integer and returns an array array list of the first n
// integers that are prime n... | } | }
if (isPrime) {
arrayList.add(i);
}
}
return arrayList;
}
} |
//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... | } | }
else if (case_type == 0){
if (key != key.toLowerCase()){
return false;
}
}
}
else{
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 {
// Return array list of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be array l... | return factors; | }
} |
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 non-empty array list of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// ... | sum += lst.get(i); | }
}
return sum;
}
} |
//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 opens === 0;
}
|
from typing import List
def exchange(lst1: List[int], lst2: List[int]) -> str:
"""In this problem, you will implement a function that takes two lists of numbers,
and determines whether it is possible to perform an exchange of elements
between them to make lst1 a list of only even numbers.
There is no l... | if count > 0: | return "NO"
else:
return "YES" |
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 is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', '... | } | } |
//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... | } | return arr;
}
|
//This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// >>> sort_third([1, 2, 3])
// [1, 2, 3]
//... | k=k+1; | }
}
return x;
} |
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 accepts two array lists of strings and returns the array list that has
// total number of chars in the all s... | return lst1; | } else {
return lst2;
}
}
} |
def vowels_count(s: str) -> int:
"""Write a function vowels_count which takes a string representing
a word as input and returns the number of vowels in the string.
Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
vowel, but only when it is at the end of the given word.
Example:
... | s = s.lower() | i = 0
count = 0
while i < len(s):
if (s[i] == 'a' or s[i] == 'e' or s[i] == 'i' or s[i] == 'o' or s[i] == 'u'):
count += 1
if (s[i] == 'y' and i == len(s) - 1):
count += 1
i += 1
return count
|
//Concatenate array of strings into a single string
// >>> concatenate([])
// ""
// >>> concatenate(["a", "b", "c"])
// "abc"
function concatenate(strings){
if(strings.length === 0){
return ""; | } | var string = strings.join("");
return string;
}
|
from typing import List
def rescale_to_unit(numbers: List[float]) -> List[float]:
""" Given list of numbers (of at least two elements), apply a linear transform to that list,
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... | if _min == _max: | return [0.5] * len(numbers)
return [(val - _min) / (_max - _min) for val in numbers]
|
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 accepts two array lists of strings and returns the array list that has
// total number of chars in the all s... | for (String s : lst1) { | sum1 += s.length();
}
for (String s : lst2) {
sum2 += s.length();
}
if (sum1 <= sum2) {
return lst1;
} else {
return lst2;
}
}
} |
from typing import List
def count_up_to(n: int) -> List[int]:
"""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... | break | if is_prime:
result.append(number)
return result
|
//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... | } | |
from typing import List
def minPath(grid: List[List[int]], k: int) -> List[int]:
"""
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... | row = i | col = j
path = [min_val]
while len(path) < k:
min_val = float('inf')
for i, j in (row - 1, col), (row + 1, col), (row, col - 1), (row, col + 1):
if 0 <= i < len(grid) and 0 <= j < len(grid[0]) and grid[i][j] < min_val:
min_val = grid[i][j]
... |
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