prefix stringlengths 0 918k | middle stringlengths 0 812k | suffix stringlengths 0 962k |
|---|---|---|
//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"... | else if(num == 2){ | arr3.push("Two");
}
else if(num == 3){
arr3.push("Three");
}
else if(num == 4){
arr3.push("Four");
}
else if(num == 5){
arr3.push("Five");
}
else if(num == 6){
arr3.push("Six");
}
... |
def car_race_collision(n: int) -> int:
"""
Imagine a road that's a perfectly straight infinitely long line.
n cars are driving left to right; simultaneously, a different set of n cars
are driving right to left. The two sets of cars start out being very far from
each other. All cars move in the s... | for i in range(l): | for j in range(l):
if left_cars[i] == right_cars[j]:
count += 1
return count |
//Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// >>> intersperse([], 4)
// []
// >>> intersperse([1, 2, 3], 4)
// [1, 4, 2, 4, 3]
function intersperse(numbers, delimeter){
var result = [];
for(var i = 0; i < numbers.length; i++){
result.push(numbers[i]);
if(i ... | result.push(delimeter); | }
}
return result;
}
|
//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... | } else { | return result[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 {
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// >>... | } | |
//Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// >>> strange_sort_list([1, 2, 3, 4])
// [1, 4, 2, 3]
// >>> strange_sort_list([5, 5, 5, 5])
// [5, 5, 5, 5]
// >>> str... | output.push(Math.min.apply(null, tmp)); | }
else{
output.push(Math.max.apply(null, tmp));
}
tmp.splice(tmp.indexOf(output[i]), 1);
}
return output;
} |
//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 ( - )
... | count++; | do_again = false;
}
}
answer = operand[0];
operand.splice(0, 1);
while(operand.length > 0){
switch(operator[0]){
case '+':
answer += operand[0];
break;
case '-':
answer -= operand[0];
break;
}
operand.splice(0, 1);
operator.splice(0, 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... | 90: "xc", | 50: "l",
40: "xl",
10: "x",
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_li... |
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... | if (size % 2 == 0) { | ret = (l.get(size / 2) + l.get(size / 2 - 1)) / 2f;
} else {
ret = l.get(size / 2);
}
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 {
// Write a function that takes an array array list of numbers as input and returns
// the number of elements in the array array list ... | } | helper h = new helper();
return nums.stream().filter(x -> x > 10).filter(x -> {
long firstDigit = h.getFirstDigit(x);
long lastDigit = h.getLastDigit(x);
return firstDigit % 2 != 0 && lastDigit % 2 != 0;
}).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 {
// Given a string representing a space separated lowercase letters, return a hash map
// of the letter with the most repetition and co... | hm.put(sss, 1l); | }
}
long max = 0;
for (String key : hm.keySet()) {
if (hm.get(key) > max) {
max = hm.get(key);
}
}
for (String key : hm.keySet()) {
if (hm.get(key) == 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 {
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Know... | if (a == 1) { | return false;
}
if (a == 2) {
return true;
}
long copyOfInput = a;
ArrayList<Long> arr = new ArrayList<Long>();
while (a % 2 == 0) {
arr.add(2l);
a /= 2;
}
for (long i = 3; i <= Math.sqrt(a); i += 2) {
... |
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 {
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// >>> isEqualToSum... | return false; | }
long d = 2;
if (n % 2 == 1) {
d = 1;
}
long minX = d;
long maxX = n / 4;
while (minX <= maxX) {
long x = (minX + maxX) / 2;
long y = n - 2 * x;
if (y % 2 == 1) {
y--;
}
if (2... |
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... | 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 {
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// >>> isEqualToSum... | y--; | }
if (2 * x + y < n) {
minX = x + 1;
} else if (2 * x + y > n) {
maxX = x - 1;
} else {
return true;
}
}
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 {
// 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... | letterGrades.add("C"); | } else if (currentGrade > 1.3f) {
letterGrades.add("C-");
} else if (currentGrade > 1.0f) {
letterGrades.add("D+");
} else if (currentGrade > 0.7f) {
letterGrades.add("D");
} else if (currentGrade > 0.0f) {
l... |
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... | 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;
}
} |
def circular_shift(x: int, shift: int) -> str:
"""Circular shift the digits of the integer x, shift the digits right by shift
and return the result as a string.
If shift > number of digits, return digits reversed.
>>> circular_shift(12, 1)
'21'
>>> circular_shift(12, 2)
'12'
"""
temp... | return ''.join(reversed(temp)) | else:
return ''.join(temp[-shift:] + temp[:-shift])
|
//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; | }
var case_type = -1;
for (let key in dict){
if (typeof key == "string"){
if (case_type == -1){
if (key == key.toUpperCase()){
case_type = 1;
}
else if (key == key.toLowerCase()){
case_type = 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 {
// You are given an array array list of integers.
// You need to find the largest prime value and return the sum of its digits.
//... | } | } |
def decimal_to_binary(decimal: int) -> str:
"""You will be given a number in decimal form and your task is to convert it to
binary format. The function should return a string, with each character representing a binary
number. Each character in the string will be '0' or '1'.
There will be an extra coupl... | return 'db' + str(bin(decimal))[2:] + 'db' | |
//pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// >>> pairs_sum_to_zero([1, 3, 5, 0])
// false
// >>> pairs_sum_to_zero([1, 3, -2, 1])
// false
// >>> pairs_sum_to_zero([1, 2, 3, 7])
// false
// >>>... | j = j + 1 | }
i = i + 1
}
return false
}
|
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... | 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 count_nums which takes an array array list of integers and returns
// the number of elements which has a sum of di... | } else { | for (int j = 0; j < str.length(); j++) {
sum = sum + (int) Character.getNumericValue(str.charAt(j));
}
}
if (sum > 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 the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise... | } | |
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 ... | } | } |
//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;
}
|
//Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// >>> minSubArraySum([2, 3, 4, 1, 2, 4])
// 1
// >>> minSubArraySum([-1, -2, -3])
// -6
function minSubArraySum(nums){
let sum = 0;
let minSum = nums[0];
for(let i = 0; i < nums.length; i++){
s... | minSum = sum; | }
if(sum > 0){
sum = 0;
}
}
return minSum;
}
|
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 += 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 {
// "
// This function will take an array array list of integers. For all entries in the array list, the function shall square the inte... | ans += lst.get(i); | }
return ans;
}
} |
//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_simple_power(8, 2)
// true
// >>> is_simple_power(3, 2)
// fa... | } | if(x % n !== 0){
return false;
}
return is_simple_power(x/n, n);
}
|
//There are eight planets in our solar system: the closerst to the Sun
// is Mercury, the next one is Venus, then Earth, Mars, Jupiter, Saturn,
// Uranus, Neptune.
// Write a function that takes two planet names as strings planet1 and planet2.
// The function should return an array containing all planets whose orbit... | 'Uranus':7, | 'Neptune':8
}
if(!planets[planet1] || !planets[planet2]){
return [];
}
var keys = Object.keys(planets);
var position1 = keys.indexOf(planet1);
var position2 = keys.indexOf(planet2);
if(position1 > position2){
var temp = position1;
position1 = position2;
... |
//Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return undefined.
// >>> string_to_md5("Hello world")
// "3e25960a79dbc69b674cd4ec67a72c62"
function string_to_md5(text){
| if(text === ''){ | return undefined;
}
return require('crypto').createHash('md5').update(text).digest('hex');
}
|
//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 ... | } | else if(collatz_sequence[i]%2 == 1){
collatz_sequence.push(collatz_sequence[i]*3+1)
}
if(collatz_sequence[i]%2 == 1){
odd_numbers.push(collatz_sequence[i])
odd_count += 1
}
if(collatz_sequence[i] == 1){
break
}
}
if(... |
def sort_numbers(numbers: str) -> str:
""" Input is a space-delimited string of numberals from 'zero' to 'nine'.
Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
Return the string with numbers sorted from smallest to largest
>>> sort_numbers('three one... | res += ' ' + word | return res.strip()
|
//You are given a non-empty array of positive integers. Return the greatest integer that is greater than
// zero, and has a frequency greater than or equal to the value of the integer itself.
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Exam... | var h = {}; | for (var i=0; i<lst.length; i++){
var x = lst[i];
if (x in h){
h[x] += 1;
}
else{
h[x] = 1;
}
}
var keys = Object.keys(h);
var max = 0;
for (var i=0; i<keys.length; i++){
if (keys[i] > max && h[keys[i]] >= keys[i]){
max = keys[i];
}
}
if (max == 0){
return... |
//Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// >>> parse_nested_parens("(()()) ((())) () ((())()())")
//... | else if (paren_string[i] == " "){ | result.push(maxlevel);
maxlevel = 0;
level = 0;
}
}
result.push(maxlevel);
return result;
}
|
//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 === 0) return null; | if(len === 1) return arr;
return arr.sort((a, b) => a - b).slice(len - k);
} |
//Return true is array elements are monotonically increasing or decreasing.
// >>> monotonic([1, 2, 4, 20])
// true
// >>> monotonic([1, 20, 4, 10])
// false
// >>> monotonic([4, 1, 0, -10])
// true
function monotonic(l){
if(l.length <= 1){
return true;
}
if(l[0] < l[1]){
for(var i = 1; i < ... | 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 {
// 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[] tokens = file_name.split("\\."); | if (tokens.length != 2) {
return result;
}
String extension = tokens[1];
if (!(extension.equals("txt") || extension.equals("exe") || extension.equals("dll"))) {
return result;
}
String name = tokens[0];
int count = 0;
for (int i = 0... |
//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 it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// >>> solve("1234")
// "4321"
// >>> solve("ab")
// "AB"
// >>... | if(/[a-z]/i.test(char)) { | return char === char.toLowerCase()
? char.toUpperCase()
: char.toLowerCase();
}
return char;
});
return swapped.join('');
}
return s.split('').reverse().join('');
}
|
//Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// >>> smallest_change([1, 2, 3... | for(let i = 0; i < arr.length/2; i++){ | if(arr[i] != arr[arr.length - 1 - i]){
changes++;
}
}
return changes;
} |
//I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two ... | } | }
return result;
}
|
//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... | return Math.floor(value); | }else{
return Math.ceil(value);
}
}
}
|
from typing import List
def odd_count(lst: List[str]) -> List[str]:
"""Given a list of strings, where each string consists of only digits, return a list.
Each element i of the output should be "the number of odd elements in the
string i of the input." where all the i's should be replaced by the number
... | for j in range(len(lst[i])): | if int(lst[i][j]) % 2 != 0:
count += 1
output.append(f"the number of odd elements {count}n the str{count}ng {count} of the {count}nput.")
return output
|
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;
}
} |
//Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// >>> sort_numbers("three one five")
// "one three five"
function sort_number... | }); | numString = numString.join(" ");
return numString;
} |
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 ... | if (q.size() == 1) { | return true;
}
Long sum = 0l;
for (int i = 0; i < q.size(); i++) {
sum += q.get(i);
}
if (sum > w) {
return false;
}
for (int i = 0; i < q.size() / 2; i++) {
if (q.get(i) != q.get(q.size() - 1 - 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 {
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a par... | } | |
def string_sequence(n: int) -> str:
""" Return a string containing space-delimited numbers starting from 0 upto n inclusive.
>>> string_sequence(0)
'0'
>>> string_sequence(5)
'0 1 2 3 4 5'
"""
| return ' '.join(str(i) for i in range(n + 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 {
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
... | sum++; | }
if (sUpper.charAt(i) == 'Y' && i == lastIndex) {
sum++;
}
}
return sum;
}
} |
from typing import List
def numerical_letter_grade(grades: List[float]) -> List[str]:
"""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.
Sh... | final.append('D+') | elif x > 0.7:
final.append('D')
elif x > 0.0:
final.append('D-')
else:
final.append('E')
return final
|
//You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// >>> words_string("Hi, my name is John")
// ["Hi", "my", "name", "is", "John"]
// >>> words_string("One, two, three, four, five, six")
// ["One", "two",... | return res; | } |
//Return sorted unique elements in an array
// >>> unique([5, 3, 5, 2, 3, 3, 9, 0, 123])
// [0, 2, 3, 5, 9, 123]
function unique(l){
| return l.filter(function(e, i, a){ | return a.indexOf(e) === i;
}).sort(function(a, b){return a-b});
}
|
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... | while (a % 2 == 0) { | arr.add(2l);
a /= 2;
}
for (long i = 3; i <= Math.sqrt(a); i += 2) {
while (a % i == 0) {
arr.add(i);
a /= i;
}
}
if (a > 2) {
arr.add(a);
}
return arr.size() == 3;
}
} |
//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 a; | } else if (a < b) {
return b;
} else {
return undefined;
}
}
else if (typeof a === "string" && typeof b === "number"){
if (a[0] > b){
return a;
} else if (a[0] < b){
return b;
} else {
return undefined;
}
}
else if (typeof a === "number" && typeof b === ... |
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 that returns true if the last character
// of a given string is an alphabetical character and is not
// a par... | if (txt.substring(len - 2, len - 1).matches(" ")) { | return true;
}
}
return false;
}
} |
from typing import List
def words_string(s: str) -> List[str]:
"""
You will be given a string of words separated by commas or spaces. Your task is
to split the string into words and return an array of the words.
For example:
>>> words_string('Hi, my name is John')
['Hi', 'my', 'name', 'is'... | s = s.replace(',', ' ') | return s.split()
|
//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
// >... | var sum = 0; | for (var i = 0; i < operations.length; i++) {
sum += operations[i];
if (sum < 0) {
return true;
}
}
return false;
}
|
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... | return lst1 | if count1 < count2:
return lst1
return lst2
|
//Return true if a given number is prime, and false otherwise.
// >>> is_prime(6)
// false
// >>> is_prime(101)
// true
// >>> is_prime(11)
// true
// >>> is_prime(13441)
// true
// >>> is_prime(61)
// true
// >>> is_prime(4)
// false
// >>> is_prime(1)
// false
function is_prime(n){
if (n==1) {
return fals... | if (n==2) { | return true;
}
if (n%2==0) {
return false;
}
var limit = Math.sqrt(n);
for (var i = 3; i <= limit; i += 2) {
if (n%i==0) {
return false;
}
}
return true;
}
|
//You are given a non-empty array of positive integers. Return the greatest integer that is greater than
// zero, and has a frequency greater than or equal to the value of the integer itself.
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Exam... | var x = lst[i]; | if (x in h){
h[x] += 1;
}
else{
h[x] = 1;
}
}
var keys = Object.keys(h);
var max = 0;
for (var i=0; i<keys.length; i++){
if (keys[i] > max && h[keys[i]] >= keys[i]){
max = keys[i];
}
}
if (max == 0){
return -1;
}
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 {
// 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... | if (i % 2 == 0) { | v = 1l;
for (long j = 2l; j <= i; j++) {
v *= j;
}
} else {
v = (i * (i + 1l)) / 2l;
}
ret.add(v);
}
return ret;
}
} |
//Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// >>> string_sequence(0)
// "0"
// >>> string_sequence(5)
// "0 1 2 3 4 5"
function string_sequence(n){
let arr = [];
for(let i = 0; i <= n; i++){
arr.push(i);
} | return arr.join(" "); | }
|
from typing import List
def unique_digits(x: List[int]) -> List[int]:
"""Given a list of positive integers x. return a sorted list of all
elements that hasn't any even digit.
Note: Returned list should be sorted in increasing order.
For example:
>>> unique_digits([15, 33, 1422, 1])
[1, 1... | s.append(i) | break
temp=temp//10
for i in s:
x.remove(i)
return sorted(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 {
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you ... | } | |
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.
... | 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;
if (c2 ... |
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 vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
... | } | |
//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 * ... | factorial = 1; | }else{
for(var k = 1; k <= i; k++){
sum += k;
}
result.push(sum);
sum = 0;
}
}
return result;
} |
def fib4(n: int) -> int:
"""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-... | elif n == 1: | return 0
elif n == 2:
return 2
elif n == 3:
return 0
else:
return fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4)
|
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, find out how many distinct characters (regardless of case) does it consist of
// >>> countDistinctCharacters(("xyzX... | } | result = set.size();
return result;
}
} |
//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... | return max; | }
|
//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"... | var num = arr2[i]; | if(num == 1){
arr3.push("One");
}
else if(num == 2){
arr3.push("Two");
}
else if(num == 3){
arr3.push("Three");
}
else if(num == 4){
arr3.push("Four");
}
else if(num == 5){
arr3.push("Five... |
//Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
function starts_one_ends(n){
let ones = [];
for(let i = Math.pow(10, n-1); i < Math.pow(10, n); i++){
if(i.toString().startsWith('1') || i.toString().endsWith('1')){
ones.p... | } | }
return ones.length;
} |
from typing import List
def strange_sort_list(lst: List[int]) -> List[int]:
"""
Given list of integers, return list in strange order.
Strange sorting, is when you start with the minimum value,
then maximum of the remaining integers, then minimum and so on.
Examples:
>>> strange_sort_list([1, 2... | lst = sorted(lst) | out = []
while lst:
out.append(lst.pop(0))
if not lst:
break
out.append(lst.pop())
return out |
//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 ... | odd_numbers.push(collatz_sequence[i]) | odd_count += 1
}
if(collatz_sequence[i] == 1){
break
}
}
if(odd_count != 0){
odd_numbers.sort(function(a, b){return a-b})
return odd_numbers
}
else{
odd_numbers.push(1)
return odd_numbers
}
}
|
//You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of arrays, [(x1, y1), (x2, y2) ...] such that
// each array is a coordi... | } | return coordinates.sort(function(a, b){
return a[0] - b[0] || b[1] - a[1];
});
}
|
//You are given a non-empty array of positive integers. Return the greatest integer that is greater than
// zero, and has a frequency greater than or equal to the value of the integer itself.
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Exam... | } | }
var keys = Object.keys(h);
var max = 0;
for (var i=0; i<keys.length; i++){
if (keys[i] > max && h[keys[i]] >= keys[i]){
max = keys[i];
}
}
if (max == 0){
return -1;
}
return max;
}
|
//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 make_palindrome(string: str) -> str:
""" Find the shortest palindrome that begins with a supplied string.
Algorithm idea is simple:
- Find the longest postfix of supplied string that is a palindrome.
- Append to the end of the string reverse of a string prefix that comes before the palindromic suffi... | return string + prefix[len(string) - i:] |
return string
|
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 word. Your task is to find the closest vowel that stands between
// two consonants from the right side of the word... | } | }
for (int i = idx.size() - 1; i >= 0; i--) {
int j = idx.get(i);
if (j == 0 || j == word.length() - 1) continue;
char left = word.charAt(j - 1);
char right = word.charAt(j + 1);
if (consonants.indexOf(left) != -1 && consonants.indexOf(right) !... |
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 product of the odd digits.
// Return 0 if all digits are even.
// For example:
// >>... | } | } |
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 < float(b_tmp): | return b
else:
return None
elif isinstance(a, str) and isinstance(b, float):
a_tmp = a.replace(',', '.')
if float(a_tmp) > b:
return a
elif float(a_tmp) < b:
return b |
//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)... | if (opens < 0) { | return false;
}
}
return opens === 0;
}
|
//You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12... | if(date_arr.length == 3){ | var month = parseInt(date_arr[0]);
var day = parseInt(date_arr[1]);
var year = parseInt(date_arr[2]);
if(month < 1 || month > 12){
return false;
}else if(month == 2){
if(day < 1 || day > 29){
return false;
}
}else if((mo... |
//Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or
// 90 degree.
// Example:
// >>> right_angle_triangle(3, 4, 5)
// true
// >>> right_angle_triangle(1, 2, 3... | if(a**2 + b**2 == c**2 || b**2 + c**2 == a**2 || a**2 + c**2 == b**2) { | return true;
} else {
return false;
}
}
|
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... | return "NO" | else:
return "YES" |
//Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or
// 90 degree.
// Example:
// >>> right_angle_triangle(3, 4, 5)
// true
// >>> right_angle_triangle(1, 2, 3... | } | }
|
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 been tasked to write a function that receives
// a hexadecimal number as a string and counts the number of hexadecimal
... | if (num.charAt(i) == '2' || num.charAt(i) == '3' || num.charAt(i) == '5' || num.charAt(i) == '7' || num.charAt(i) == 'B' || num.charAt(i) == 'D') { | result++;
}
}
return result;
}
} |
//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... | else if (grades[i] > 1.0){ | grades_array.push("D+");
}
else if (grades[i] > 0.7){
grades_array.push("D");
}
else if (grades[i] > 0.0){
grades_array.push("D-");
}
else if (grades[i] == 0.0){
grades_array.push("E");
}
}
return grades_arra... |
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 an array array list of numbers as input and returns
// the number of elements in the array array list ... | return firstDigit % 2 != 0 && lastDigit % 2 != 0; | }).count();
}
} |
from typing import List
def do_algebra(operator: List[str], operand: List[int]) -> int:
"""
Given two lists operator, and operand. The first list has basic algebra operations, and
the second list is a list of integers. Use the two given lists to build the algebric
expression and return the evaluation... | if len(operator) != len(operand) - 1: | raise ValueError("Invalid number of operators")
expr = [str(operand[0])]
for idx, op in enumerate(operator):
expr.append(op)
expr.append(str(operand[idx + 1]))
return eval("".join(expr)) |
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 non-empty array list of positive integers. Return the greatest integer that is greater than
// zero, and has a fre... | HashMap<Long, Long> map = new HashMap<Long, Long>(); | Long max = (long)-1;
for (int i = 0; i < lst.size(); i++) {
long val = lst.get(i);
if (map.containsKey(val)) {
map.put(val, map.get(val) + 1);
} else {
map.put(val, (long)1);
}
if (map.get(val) >= val && val > ma... |
//Return the largest prime factor of n. Assume n > 1 and is not a prime.
// >>> largest_prime_factor(13195)
// 29
// >>> largest_prime_factor(2048)
// 2
function largest_prime_factor(n){
var result = 2;
while(n > result){
if(n % result == 0){
n = n / result;
}
else{
result = 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 {
// 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 -=... |
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,
... | 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... | return 1; | }
else{
return 0;
}
}
});
}
var a = ["aa", "a", "aaa"];
var b = ["ab", "a", "aaa", "cd"]; |
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 * 2) % p; | }
} |
//Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// >>> parse_nested_parens("(()()) ((())) () ((())()())")
//... | else if (paren_string[i] == ")"){ | level -= 1;
}
else if (paren_string[i] == " "){
result.push(maxlevel);
maxlevel = 0;
level = 0;
}
}
result.push(maxlevel);
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 that returns true if the last character
// of a given string is an alphabetical character and is not
// a par... | return true; | }
if (txt.substring(len - 2, len - 1).matches(" ")) {
return true;
}
}
return false;
}
} |
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