prefix stringlengths 0 918k | middle stringlengths 0 812k | suffix stringlengths 0 962k |
|---|---|---|
//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 true;
} |
//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 ... | result += 1; | }
}
return result;
} |
//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; | }
else{
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;
... |
//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("(()()) ((())) () ((())()())")
//... | var maxlevel = 0; | var result = [];
for (var i = 0; i < paren_string.length; i++){
if (paren_string[i] == "("){
level += 1;
if (level > maxlevel){
maxlevel = level;
}
}
else if (paren_string[i] == ")"){
level -= 1;
}
else if (p... |
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... | 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]
row = i
... |
//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... | } | |
//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++){
sum += nums[i];
if(sum < minSum){
minSum = sum;
}
if(sum > 0){
sum = 0;
}
}
return minSum;
}
|
//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 {
// Given array list of integers, return array list in strange order.
// Strange sorting, is when you start with the minimum value,
... | } | ArrayList<Long> result = new ArrayList<Long>();
ArrayList<Long> sorted = new ArrayList<Long>(lst);
Collections.sort(sorted);
int min = 0;
int max = sorted.size() - 1;
while (min <= max) {
result.add(sorted.get(min));
min++;
if (min <= m... |
//Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// >>> check_if_last_char_is_a_letter("apple pie")
// false
// >>> check_if_last_ch... | } | return false;
} |
//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 ... | 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
}
}
|
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 a number in decimal form and your task is to convert it to
// binary format. The function should return a string,... | return "db" + Long.toBinaryString(decimal) + "db"; | }
} |
//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 ( - )
... | do_again = true; | break;
default:
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;
}
oper... |
//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... | } | }
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 sorted unique common elements for two array lists.
// >>> common((new ArrayList<Long>(Arrays.asList((long)1l, (long)4l, (lon... | ); | }
} |
from typing import List, Tuple, Optional
def largest_smallest_integers(lst: List[int]) -> Tuple[Optional[int], Optional[int]]:
"""
Create a function that returns a tuple (a, b), where 'a' is
the largest of negative integers, and 'b' is the smallest
of positive integers in a list.
If there is no neg... | smallest_positive = None | largest_negative = None
for num in lst:
if num > 0:
if smallest_positive is None or num < smallest_positive:
smallest_positive = num
elif num < 0:
if largest_negative is None or num > largest_negative:
largest_negative = num
return (lar... |
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)
//... | sqrt = (sqrt * sqrt) % p; | if (n % 2 == 0) {
return sqrt;
}
return (sqrt * 2) % p;
}
} |
def valid_date(date: str) -> bool:
"""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 hi... | days_per_month = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] | date_list = [int(d) for d in date.split('-')]
if len(date_list) != 3:
return False
if date_list[0] < 1 or date_list[0] > 12:
return False
if date_list[1] < 1 or date_list[1] > days_per_month[date_list[0] - 1]:
return False
if len(str(date_list[2])) != 4:
return False
... |
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.
... | most_count = 0 | result = {}
for letter in test.split():
letters[letter] = letters.get(letter, 0) + 1
if letters[letter] >= most_count:
most_count = letters[letter]
for letter in letters:
if letters[letter] == most_count:
result[letter] = most_count
return result
|
from typing import List
def select_words(s: str, n: int) -> List[str]:
"""Given a string s and a natural number n, you have been tasked to implement
a function that returns a list of all words from string s that contain exactly
n consonants, in order these words appear in the string s.
If the string ... | return result | |
//Return array 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]
function incr_list(l){
| var new_list = []; | for(var i = 0; i < l.length; i++){
new_list.push(l[i] + 1);
}
return new_list;
}
|
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... | total = 0 | for i in lst:
total += i**2
return total |
//Check if two words have the same characters.
// >>> same_chars("eabcdzzzz", "dddzzzzzzzddeddabc")
// true
// >>> same_chars("abcd", "dddddddabc")
// true
// >>> same_chars("dddddddabc", "abcd")
// true
// >>> same_chars("eabcd", "dddddddabc")
// false
// >>> same_chars("abcd", "dddddddabce")
// false
// >>> same_char... | break; | }
}
for(let i = 0; i < s1.length; i++){
if(s0.indexOf(s1[i]) === -1){
res = false;
break;
}
}
return res;
}
|
//Return array 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]
function incr_list(l){
var new_list = []; | for(var i = 0; i < l.length; i++){ | new_list.push(l[i] + 1);
}
return new_list;
}
|
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... | } | |
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 two array lists operator, and operand. The first array list has basic algebra operations, and
// the second array list is an... | ArrayList<Long> list = new ArrayList<>(); | list.add(operand.get(0));
for (int i = 0; i < op.size(); i++) {
if (op.get(i).equals("+"))
list.add(operand.get(i + 1));
else if (op.get(i).equals("-"))
list.add(-operand.get(i + 1));
else if (op.get(i).equals("*"))
list... |
//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... | } | |
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 non-negative integers, return a cojava of the given array array list after sorting,
// you will sort t... | if((array.get(0)+array.get(array.size()-1))%2==0) { | Collections.sort(array, Collections.reverseOrder());
}
else {
Collections.sort(array);
}
}
return array;
}
} |
//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... | return -1; | }
return max;
}
|
//Given a string s and a natural number n, you have been tasked to implement
// a function that returns an array of all words from string s that contain exactly
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may as... | let words = s.split(' ').filter(e => e != ''); | let selected = words.filter(e => e.match(/[bcdfghjklmnpqrstvwxyz]/gi) != null);
if(n > 0){
return selected.filter(e => e.match(/[bcdfghjklmnpqrstvwxyz]/gi).length == n);
}else{
return [];
}
}
|
//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.push(i);
}
}
return ones.length;
} |
//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 < ... | } | }
}
else{
for(var i = 1; i < l.length - 1; i++){
if(l[i] < l[i + 1]){
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 {
// Checks if given string is a palindrome
// >>> isPalindrome((""))
// (true)
// >>> isPalindrome(("aba"))
// (true)
/... | isPalindrome = false; | break;
}
left++;
right--;
}
return isPalindrome;
}
} |
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... | count = 0 | for x in lst1:
if x % 2 == 1:
count += 1
for y in lst2:
if y % 2 == 0:
count -= 1
if count > 0:
return "NO"
else:
return "YES" |
//Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// >>> has_close_elements([1.0, 2.0, 3.0], 0.5)
// false
// >>> has_close_elements([1.0, 2.8, 3.0, 4.0, 5.0, 2.0], 0.3)
// true
function has_close_elements(numbers, threshold){
for(var i = 0; i < numbers.length; i+... | } | }
return false;
}
|
from typing import List
def intersperse(numbers: List[int], delimeter: int) -> List[int]:
""" Insert a number 'delimeter' between every two consecutive elements of input list `numbers'
>>> intersperse([], 4)
[]
>>> intersperse([1, 2, 3], 4)
[1, 4, 2, 4, 3]
"""
result = []
if len(numbers... | return result | result.append(numbers[0])
for num in numbers[1:]:
result.append(delimeter)
result.append(num)
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 {
// pairs_sum_to_zero takes an array array list of integers as an input.
// it returns true if there are two distinct elements in the a... | } | }
return false;
}
} |
//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 ... | result[key] = max; | }
}
return result;
}
|
from typing import List, Tuple, Optional
def largest_smallest_integers(lst: List[int]) -> Tuple[Optional[int], Optional[int]]:
"""
Create a function that returns a tuple (a, b), where 'a' is
the largest of negative integers, and 'b' is the smallest
of positive integers in a list.
If there is no neg... | if num > 0: | if smallest_positive is None or num < smallest_positive:
smallest_positive = num
elif num < 0:
if largest_negative is None or num > largest_negative:
largest_negative = num
return (largest_negative, smallest_positive)
|
//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
function digits(n){
if(!n){
return "error";
}
if(n < 0){
return "error";
}
var temp = 0;
va... | odd = false; | }
}
if(odd){
return 0;
}
return prod;
}
|
//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... | } | if (max == 0){
return -1;
}
return max;
}
|
//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;
}
|
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... | left_cars = [i for i in range(l)] | right_cars = [i for i in range(l)]
for i in range(l):
for j in range(l):
if left_cars[i] == right_cars[j]:
count += 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 {
// 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... | min = l_e.get(j); | l_e.set(j, l_e.get(i));
l_e.set(i, min);
}
}
}
int j = 0;
for (int i = 0; i < l.size(); i++) {
if (i % 3 == 0) {
l_s.add(l_e.get(j));
j++;
} else {
l_s.add(... |
//Write a function that takes an integer a and returns true
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// >>> iscube(1)
// true
// >>> iscube(2)
// false
// >>> iscube(-1)
// true
// >>> iscube(64)
// true
// >>> iscube(0)
// true
// >>> iscube(... | }else{ | return false;
}
} |
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('E') | return final
|
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 a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete... | } | |
//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... | if(position1 > position2){ | var temp = position1;
position1 = position2;
position2 = temp;
}
var res = [];
for(var i = position1 + 1; i < position2; i++){
res.push(keys[i]);
}
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 {
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift >... | return (digits.substring(digits.length() - (int)shift, digits.length()) + digits.substring(0, digits.length() - (int)shift)); | }
} |
def int_to_mini_roman(number: int) -> str:
"""
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(... | 10: 'x', | 9: 'ix',
5: 'v',
4: 'iv',
1: 'i'
}
roman_numeral = ''
for key in sorted(roman_numerals.keys(), reverse=True):
roman_numeral += roman_numerals[key] * (number // key)
number = number % key
return roman_numeral
|
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.
//... | } | if (largestPrime == 0) {
return 0l;
}
else {
long output = 0l;
while (largestPrime > 0) {
output += largestPrime % 10;
largestPrime /= 10;
}
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 {
// Given a string representing a space separated lowercase letters, return a hash map
// of the letter with the most repetition and co... | HashMap<String,Long> hm = new HashMap<String,Long>(); | String[] ss = test.split(" ");
for (String sss : ss) {
if (hm.containsKey(sss)) {
hm.put(sss, hm.get(sss) + 1);
} else {
hm.put(sss, 1l);
}
}
long max = 0;
for (String key ... |
//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... | } | }
|
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_factors = [] | while d * d <= n:
if n % d == 0:
prime_factors.append(d)
n //= d
else:
d += 1
if n > 1:
prime_factors.append(n)
if len(prime_factors) == 3:
return True
else:
return False
|
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 ... | if float(a_tmp) > float(b_tmp): | return a
elif float(a_tmp) < float(b_tmp):
return b
else:
return None
elif isinstance(a, int) and isinstance(b, float):
if a > b:
return a
elif a < b:
return b
else:
return None
elif isinstance(a, flo... |
from typing import Union, List
def split_words(txt: str) -> Union[List[str], int]:
"""
Given a string of words, return a list 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 ord... | return len([letter for letter in txt if letter in alphabet and alphabet.index(letter) % 2 == 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 {
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into s... | } | }
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 {
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in... | } | return ans;
}
} |
def fizz_buzz(n: int) -> int:
"""Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
>>> fizz_buzz(50)
0
>>> fizz_buzz(78)
2
>>> fizz_buzz(79)
3
"""
x = 0
for i in range(n): | if i % 11 == 0 or i % 13 == 0: | x += str(i).count('7')
return x
|
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:
... | if (s[i] == 'y' and i == len(s) - 1): | count += 1
i += 1
return count
|
def iscube(a: int) -> bool:
"""
Write a function that takes an integer a and returns True
if this ingeger is a cube of some integer number.
Note: you may assume the input is always valid.
Examples:
>>> iscube(1)
True
>>> iscube(2)
False
>>> iscube(-1)
True
>>> iscube(64)... | a = abs(a) | if a == 0:
return True
for i in range(1,int(math.sqrt(a))+1):
if i**3 == a:
return True
return False
pass
|
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... | if ((arrayList.get(i) + arrayList.get(j) + arrayList.get(k)) % 3 == 0) { | count++;
}
}
}
}
return count;
}
} |
//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(tempMax < numbers[i]){ | tempMax = numbers[i];
}
max.push(tempMax);
}
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 {
// Given an array array list arr of integers and a positive integer k, return a sorted array list
// of length k with the maximum k n... | } | } |
//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"])
/... | unique_word[char] = 1; | }
}
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;
}
e... |
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 ... | if a > b: | return a
elif a < b:
return b
else:
return None
elif isinstance(a, str) and isinstance(b, str):
a_tmp = a.replace(',', '.')
b_tmp = b.replace(',', '.')
if float(a_tmp) > float(b_tmp):
return a
elif float(a_tmp) < float(b... |
//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... | } | }
let currCell = startCell;
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;
... |
//Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// >>> is_equal_to_sum_even(4)
// false
// >>> is_equal_to_sum_even(6)
// false
// >>> is_equal_to_sum_even(8)
// true
function is_equal_to_sum_even(n){
let m =0;
for(let i=2;i<n;i+=2){
for(let ... | m=1; | break;
}
}
}
}
}
if(m==1){
return true;
}
else{
return false;
}
} |
//Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominato... | let xNumerator = parseInt(x.split('/')[0]); | let xDenominator = parseInt(x.split('/')[1]);
let nNumerator = parseInt(n.split('/')[0]);
let nDenominator = parseInt(n.split('/')[1]);
let xTimesN = xNumerator * nNumerator / (xDenominator * nDenominator);
return Number.isInteger(xTimesN);
}
|
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... | } | 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.get(j);
l_e.set(j, l_e.get(i));
l_e.set(i, min);
}
... |
//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... | let nextCell = neighbours[0]; | for(let i = 0; i < neighbours.length; i++){
let curr = neighbours[i];
if(curr < nextCell){
nextCell = curr;
}
}
currCell = nextCell;
}
return path;
} |
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 a given number is prime, and false otherwise.
// >>> isPrime((6l))
// (false)
// >>> isPrime((101l))
// ... | } | |
//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;
... | b = temp; | num--;
}
return b;
}
var res = 0;
var fibNum = 0;
while(res < n){
if(isPrime(fib(fibNum))){
res++;
}
fibNum++;
}
return fib(fibNum - 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 {
// triples_sum_to_zero takes an array array list of integers as an input.
// it returns true if there are three distinct elements in t... | j++; | } else {
k--;
}
}
}
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 {
// 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;
}
} |
from typing import List
def make_a_pile(n: int) -> List[int]:
"""
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 stones in the next level is:
- the next odd number if n is odd.
- the next even number if n is even.
... | pile.append(pile[i-1] + 2) | return pile
|
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 > 3.0f) { | letterGrades.add("B+");
} else if (currentGrade > 2.7f) {
letterGrades.add("B");
} else if (currentGrade > 2.3f) {
letterGrades.add("B-");
} else if (currentGrade > 2.0f) {
letterGrades.add("C+");
} else if (... |
def is_equal_to_sum_even(n: int) -> bool:
"""Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
Example
>>> is_equal_to_sum_even(4)
False
>>> is_equal_to_sum_even(6)
False
>>> is_equal_to_sum_even(8)
True
"""
| if n < 8: | return False
return n % 2 == 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 an array array list of non-negative integers, return a cojava of the given array array list after sorting,
// you will sort t... | } | return array;
}
} |
def prime_length(string: str) -> bool:
"""Write a function that takes a string and returns True if the string
length is a prime number or False otherwise
Examples
>>> prime_length('Hello')
True
>>> prime_length('abcdcba')
True
>>> prime_length('kittens')
True
>>> prime_length('or... | if num > 1: | for i in range(2, num):
if (num % i) == 0:
return False
else:
return True
else:
return False
pass
|
//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:
// >>... | for(var i = 1; i <= n; i++){ | if(isPalindrome(i)){
pal.push(i);
}
}
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];
} |
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 > 1.0f) {
letterGrades.add("D+");
} else if (currentGrade > 0.7f) {
letterGrades.add("D");
} else if (currentGrade > 0.0f) {
letterGrades.add("D-");
} else {
letterGrades.add("E");
... |
//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;
}
|
//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
function digits(n){
if(!n){
return "error";
}
if(n < 0){
return "error";
}
var temp = 0;
va... | return prod; | }
|
//Given an array of strings, where each string consists of only digits, return an array.
// 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
// of odd digits in the i'th string of the input.
// >>> odd_count(["1234567... | var odd_sum = 0; | for (var j = 0; j < word.length; j++){
if (word[j] % 2 == 1){
odd_sum += 1;
}
}
var odd_word = "the number of odd elements " + odd_sum + "n the str" + odd_sum + "ng " + odd_sum + " of the " + odd_sum + "nput.";
new_lst.push(odd_word);
}
ret... |
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('C') | elif x > 1.3:
final.append('C-')
elif x > 1.0:
final.append('D+')
elif x > 0.7:
final.append('D')
elif x > 0.0:
final.append('D-')
else:
final.append('E')
return final
|
//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, and 3.
// >>> count_nums([])
// 0
// >>> count_nums([-1, 11, -11])
// 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 {
// 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... | float area = (float)Math.sqrt(s * (s - a) * (s - b) * (s - c)); | return (float)Math.round(area * 100) / 100;
}
return -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... | 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 {
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// >>> correc... | for (int i = 0; i < brackets.length(); i++) { | char c = brackets.charAt(i);
if (c == '<') {
open++;
} else {
open--;
}
if (open < 0) {
return false;
}
}
return open == 0;
}
} |
//Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// >>> has_close_elements([1.0, 2.0, 3.0], 0.5)
// false
// >>> has_close_elements([1.0, 2.8, 3.0, 4.0, 5.0, 2.0], 0.3)
// true
function has_close_elements(numbers, threshold){
for(var i = 0; i < numbers.length; i+... | if(Math.abs(numbers[i] - numbers[j]) < threshold){ | 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 {
// 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... | 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; i < name.length(); i++) {
if (Character.isDigit... |
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 message, and encodes in such a
// way that it swaps case of all letters, replaces all vowels in
... | } | return new String(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 a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <=... | res += "i"; | num -= 1;
}
return res;
}
} |
//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... | sum += Number(digits[i]); | }
return sum;
} |
//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==0) { | return false;
}
var limit = Math.sqrt(n);
for (var i = 3; i <= limit; i += 2) {
if (n%i==0) {
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 ... | return "NO"; | }
}
|
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, int) and isinstance(b, float): | if a > b:
return a
elif a < b:
return b
else:
return None
elif isinstance(a, float) and isinstance(b, int):
if a > b:
return a
elif a < b:
return b
else:
return None
elif isinstance(a, str) an... |
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.
//... | counter++; | }
l++;
}
}
if (counter == 2) {
if (number > largestPrime) {
largestPrime = number;
}
}
}
if (largestPrime == 0) {
return 0l;
}
else ... |
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... | } | if (2 * x + y < n) {
minX = x + 1;
} else if (2 * x + y > n) {
maxX = x - 1;
} else {
return true;
}
}
return false;
}
} |
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