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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 += "cm";
num -= 900; } if (num >= 500) { res += "d"; num -= 500; } if (num >= 400) { res += "cd"; num -= 400; } while (num >= 100) { res += "c"; num -= 100; } if (num >= 90) { ...
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...
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 { // Filter an input array list of strings only for ones that contain given substring // >>> filterBySubstring((new ArrayList<String>(Ar...
}
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 ...
}
import java.util.*; import java.lang.reflect.*; import org.javatuples.*; import java.security.*; import java.math.*; import java.io.*; import java.util.stream.*; class Problem { // "Given an array array list representing a branch of a tree that has non-negative integer nodes // your task is to pluck one of the ...
minValue = arr.get(i);
} } } ArrayList<Long> newArr = new ArrayList<Long>(); if (minIndex == -1) { return newArr; } newArr.add(minValue); newArr.add((long)minIndex); return newArr; } }
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 { // prime_fib returns n-th number that is a Fibonacci number and it's also prime. // >>> primeFib((1l)) // (2l) // >>> primeFib...
long tmp = fib;
fib += prev; prev = tmp; if (BigInteger.valueOf(fib).isProbablePrime(1)) { count++; } } return fib; } }
from typing import Tuple def reverse_delete(s: str, c: str) -> Tuple[str, bool]: """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 b...
if i not in c:
new_str += i new_str_reverse = new_str[::-1] return (new_str, new_str == new_str_reverse)
def correct_bracketing(brackets: str) -> bool: """ brackets is a string of "(" and ")". return True if every opening bracket has a corresponding closing bracket. >>> correct_bracketing('(') False >>> correct_bracketing('()') True >>> correct_bracketing('(()())') True >>> correct_bra...
count = 0
for char in brackets: if char == '(': count += 1 elif char == ')': count -= 1 if count < 0: return False return count == 0
from typing import List def parse_music(music_string: str) -> List[int]: """ Input to this function is a string representing musical notes in a special ASCII format. Your task is to parse this string and return list of integers corresponding to how many beats does each not last. Here is a legend: ...
music_types = {'o': 4, 'o|': 2, '.|': 1}
return [music_types[x] for x in music_string.split()]
//Task // Write a function that takes a string as input and returns the sum of the upper characters only' // ASCII codes. // Examples: // >>> digitSum("") // 0 // >>> digitSum("abAB") // 131 // >>> digitSum("abcCd") // 67 // >>> digitSum("helloE") // 69 // >>> digitSum("woArBld") // 131 // >>> digitSum("aAaaaXa") // 15...
var sum = 0;
for(var i = 0; i < s.length; i++){ if(s[i] >= 'A' && s[i] <= 'Z'){ sum += s.charCodeAt(i); } } return sum; }
//The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows: // fibfib(0) == 0 // fibfib(1) == 0 // fibfib(2) == 1 // fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3). // Please write a function to efficiently compute the n-th element of the fibfib number sequence. // >>>...
}
return fibfib(n-1) + fibfib(n-2) + fibfib(n-3); }
//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 ...
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 { // Given an array array list of positive integers x. return a sorted array list of all // elements that hasn't any even digit. //...
}
from typing import List def factorize(n: int) -> List[int]: """ Return list of prime factors of given integer in the order from smallest to largest. Each of the factors should be listed number of times corresponding to how many times it appeares in factorization. Input number should be equal to the product...
while n % i == 0:
factors.append(i) n = n / i i += 1 return factors
//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...
startCell = curr;
} } } 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){ ...
//Given an array of positive integers x. return a sorted array of all // elements that hasn't any even digit. // Note: Returned array should be sorted in increasing order. // For example: // >>> unique_digits([15, 33, 1422, 1]) // [1, 15, 33] // >>> unique_digits([152, 323, 1422, 10]) // [] function unique_digits(x){ ...
let num = x[i].toString()
if(num.indexOf('2') === -1 && num.indexOf('4') === -1 && num.indexOf('6') === -1 && num.indexOf('8') === -1 && num.indexOf('0') === -1){ result.push(x[i]) } } return result.sort(function(a, b){return a-b}) }
//"Given an array representing a branch of a tree that has non-negative integer nodes // your task is to pluck one of the nodes and return it. // The plucked node should be the node with the smallest even value. // If multiple nodes with the same smallest even value are found return the node that has smallest index. //...
}
return result; }
//Given a non-empty array of integers lst. add the even elements that are at odd indices.. // Examples: // >>> add([4, 2, 6, 7]) // 2 function add(lst){ var add = 0; for(var i = 0; i < lst.length; i++) { if(lst[i] % 2 == 0 && i % 2 != 0) { add += lst[i]; }
}
return add; }
//For a given array of integers, return an array consisting of a sum and a product of all the integers in an array. // Empty sum should be equal to 0 and empty product should be equal to 1. // >>> sum_product([]) // [0, 1] // >>> sum_product([1, 2, 3, 4]) // [10, 24] function sum_product(numbers){ if(numbers.length...
product *= numbers[i];
} return [sum, product]; }
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...
for (int i = 0; i < paren_string.length(); i++) {
char c = paren_string.charAt(i); if (c == '(') { if (open_paren == 0) { temp = new StringBuffer(); } open_paren++; temp.append(c); } else if (c == ')') { open_paren--; temp.append(c); if (open_paren == 0) { output.add(temp.toString()); } } } return output; }...
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, count the number of uppercase vowels in even indices. // For example: // >>> countUpper(("aBCdEf")) // (1...
.filter(i -> s.charAt(i) == 'A' || s.charAt(i) == 'E' || s.charAt(i) == 'I' || s.charAt(i) == 'O' || s.charAt(i) == 'U')
.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)...
return False
pass
def x_or_y(n: int, x: int, y: int) -> int: """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 """ if n < 2:
return y
for i in range(2, n): if n % i == 0: return y 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 { // Find how many times a given substring can be found in the original string. Count overlaping cases. // >>> howManyTimes((""), ("a"))...
if (index != -1) {
index++; count++; } } return count; } }
//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)...
opens++;
} else if (brackets[i] === ">") { opens--; } if (opens < 0) { return false; } } return opens === 0; }
//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...
let str_3 = file_name.split('');
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'; }
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...
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 { // Return true if a given number is prime, and false otherwise. // >>> isPrime((6l)) // (false) // >>> isPrime((101l)) // ...
if (n <= 3) return true;
if (n % 2 == 0 || n % 3 == 0) return false; long i = 5; while (i * i <= n) { if (n % i == 0 || n % (i + 2) == 0) return false; i += 6; } return true; } }
//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 { // Given a positive integer n, return the count of the numbers of n-digit // positive integers that start or end with 1. public st...
}
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'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 th...
for (String sentence : sentences) {
String[] words = sentence.split("\\s"); if (words.length > 0 && words[0].equals("I")) { boredoms++; } } return boredoms; } }
//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 //...
if (a > b) {
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" ...
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 integers nums, find the minimum sum of any non-empty sub-array array list // of nums. // Example ...
}
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...
a /= i;
} } if (a > 2) { arr.add(a); } return arr.size() == 3; } }
//You are given an array arr of integers and you need to return // sum of magnitudes of integers multiplied by product of all signs // of each number in the array, represented by 1, -1 or 0. // Note: return undefined for empty arr. // Example: // >>> prod_signs([1, 2, 2, -4]) // 9 // >>> prod_signs([0, 1]) // 0 // >>> ...
}
else{ for(var i = 0; i < len; i++){ total += Math.abs(arr[i]); if(arr[i] < 0){ pro *= -1; } else if(arr[i] == 0){ pro *= 0; } } total *= pro; return total; } }
//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 // >...
sum += Number(str[0] + str[1]);
for(var j = 2; j < str.length; j++) { sum += Number(str[j]); } } else { for(var k = 0; k < str.length; k++) { sum += Number(str[k]); } } if(sum > 0) { count++; } } return count; }
//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 += str...
return result;
}
from typing import List, Optional def prod_signs(arr: List[int]) -> Optional[int]: """ You are given an array arr of integers and you need to return sum of magnitudes of integers multiplied by product of all signs of each number in the array, represented by 1, -1 or 0. Note: return None for empty a...
return out
if len(arr) == 0: return None else: sign_arr = [] for num in arr: if num > 0: sign_arr.append(1) elif num < 0: sign_arr.append(-1) else: sign_arr.append(0) return sum(map(abs, arr)) * product(sig...
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 += "l";
num -= 50; } if (num >= 40) { res += "xl"; num -= 40; } while (num >= 10) { res += "x"; num -= 10; } if (num >= 9) { res += "ix"; num -= 9; } if (num >= 5) { re...
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) /...
}
return isPalindrome; } }
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...
Collections.sort(array);
} } return 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 { // Write a function that accepts an array array list of strings. // The array list contains different words. Return the word with maxi...
public int compare(String o1, String o2) {
int compareResult = wordsToUniqueCharacters.get(o2).compareTo(wordsToUniqueCharacters.get(o1)); if (compareResult == 0) { return o1.compareTo(o2); } return compareResult; } }); return words.get(0); } }
//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 ...
return odd_numbers
} }
//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_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 } }
import java.util.*; import java.lang.reflect.*; import org.javatuples.*; import java.security.*; import java.math.*; import java.io.*; import java.util.stream.*; class Problem { // We have an array array list 'arr' of N integers arr[1], arr[2], ..., arr[N].The // numbers in the array array list will be randomly...
for (int i = 0; i < arr.size(); i++) {
ArrayList<Long> copy = new ArrayList<Long>(arr); long last = copy.remove(copy.size() - 1); copy.add(0, last); if (copy.equals(sorted)) return true; arr = copy; } return false; } }
import java.util.*; import java.lang.reflect.*; import org.javatuples.*; import java.security.*; import java.math.*; import java.io.*; import java.util.stream.*; class Problem { // 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...
units += 1l;
} count += units; } 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 { // 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 > 2.0f) {
letterGrades.add("C+"); } else if (currentGrade > 1.7f) { letterGrades.add("C"); } else if (currentGrade > 1.3f) { letterGrades.add("C-"); } else if (currentGrade > 1.0f) { letterGrades.add("D+"); } else if (...
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 (isPrime) { ans.append(word + " "); } } if (ans.length() > 0) { ans.deleteCharAt(ans.length() - 1); } return ans.toString(); } }
//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...
if (p === open){
stack.push(p); } else if (p === close){ if (stack.length === 0){ return false; } stack.pop(); } } return stack.length === 0; }; const str1 = lst[0]; const str2 = lst[1]; if (is_good(str1 + str2)){ return 'Yes'; } if (is_good(str2 + str1)){ return 'Yes'; } return 'No'; }
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...
long current_depth = 0;
for (char c : paren.toCharArray()) { if (c == '(') { current_depth += 1; max_depth = Math.max(max_depth, current_depth); } else if (c == ')') { current_depth -= 1; } } result.a...
from typing import List def double_the_difference(lst: List[float]) -> int: """ Given a list of numbers, return the sum of squares of the numbers in the list that are odd. Ignore numbers that are negative or not integers. >>> double_the_difference([1, 3, 2, 0]) 10 >>> double_the_difference...
for x in lst:
if not x < 0 and x % 2 == 1: sum += x * x return sum
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(...
40: 'xl',
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 { // Find the shortest palindrome that begins with a supplied string. // Algorithm idea is simple: // - Find the longest postfix of ...
}
} return newString.toString(); } }
//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+...
for(var j = i + 1; j < numbers.length; j++){
if(Math.abs(numbers[i] - numbers[j]) < threshold){ return true; } } } return false; }
def largest_prime_factor(n: int) -> int: """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 """ largest = 1 factor = 2 while factor < n: if n % factor == 0: largest = factor
while n % factor == 0:
n = n // factor factor += 1 return max(largest, n)
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...
min_val = grid[i][j]
row = i col = j path.append(min_val) 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 { // Create a function encrypt that takes a string as an argument and // returns a string encrypted with the alphabet being rotated. ...
return b.toString();
} }
//You will be given the name of a class (a string) and an array of extensions. // The extensions are to be used to load additional classes to the class. The // strength of the extension is as follows: Let CAP be the number of the uppercase // letters in the extension's name, and let SM be the number of lowercase letter...
}
return output; }
//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...
}
return new_lst; }
//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") ...
var newString = "";
var shiftBy = 2 * 2; for(var i = 0; i < s.length; i++){ var index = alphabet.indexOf(s[i]); newString += alphabet[(index + shiftBy) % 26]; } return newString; }
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 { // prime_fib returns n-th number that is a Fibonacci number and it's also prime. // >>> primeFib((1l)) // (2l) // >>> primeFib...
prev = tmp;
if (BigInteger.valueOf(fib).isProbablePrime(1)) { count++; } } return fib; } }
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, float) and isinstance(b, int): if a > b: return a elif a < b: return b else: return None elif isinstance(a, str) and isinstance(b, in...
def largest_prime_factor(n: int) -> int: """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 """ largest = 1 factor = 2 while factor < n: if n % factor == 0: largest = factor...
n = n // factor
factor += 1 return max(largest, n)
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...
if (hm.get(key) == max) {
s.put(key, hm.get(key)); } } } return s; } }
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)...
for i in range(1,int(math.sqrt(a))+1):
if i**3 == a: return True return False pass
//" // This function will take an array of integers. For all entries in the array, the function shall square the integer entry if its index is a // multiple of 3 and will cube the integer entry if its index is a multiple of 4 and not a multiple of 3. The function will not // change the entries in the array whose inde...
sum += lst[i]*lst[i]*lst[i];
} else { sum += lst[i]; } } return sum; }
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 ...
words = s.split()
result = [] for word in words: count = 0 for char in word: if char.lower() in CONSONANTS: count += 1 if count == n: result.append(word) return result
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 ...
groups.append(group)
group = '' return groups
from typing import List def search(lst: List[int]) -> int: """ You are given a non-empty list 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 i...
if i in dic:
dic[i] += 1 else: dic[i] = 1 maxValue = -1 for key, value in dic.items(): if value >= key and key > maxValue: maxValue = key return maxValue
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...
}
}
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) /...
}
left++; right--; } return isPalindrome; } }
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 n-th Fibonacci number. // >>> fib((10l)) // (55l) // >>> fib((1l)) // (1l) // >>> fib((8l)) // (21l) ...
else {
return Problem.fib((n - 1)) + Problem.fib((n - 2)); } } }
//You are given an array arr of integers and you need to return // sum of magnitudes of integers multiplied by product of all signs // of each number in the array, represented by 1, -1 or 0. // Note: return undefined for empty arr. // Example: // >>> prod_signs([1, 2, 2, -4]) // 9 // >>> prod_signs([0, 1]) // 0 // >>> ...
else{
for(var i = 0; i < len; i++){ total += Math.abs(arr[i]); if(arr[i] < 0){ pro *= -1; } else if(arr[i] == 0){ pro *= 0; } } total *= pro; return total; } }
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 float(a_tmp) < b:
return b else: return None elif isinstance(a, int) and isinstance(b, str): b_tmp = b.replace(',', '.') if a > float(b_tmp): return a elif a < float(b_tmp): return b else: return None elif isinstance(a, str) and i...
//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"]) /...
var unique_word = {};
var word = words[i]; for(var j = 0; j < word.length; j++){ var char = word[j]; if(unique_word[char] === undefined){ unique_word[char] = 1; } } if(max_unique_word === ""){ max_unique_word = word; max_unique = uniq...
//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: // >>...
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]; }
//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 array of those. // Separate groups are balanced (each open brace is properly closed) and not nested within each other // Ignore any spaces in the input stri...
if (paren_string[i] === '('){
count++; group += paren_string[i]; } else if (paren_string[i] === ')'){ count--; group += paren_string[i]; } if (count === 0 && group){ groups.push(group); group = ''; } } return groups; }
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_...
if any(not x.islower() for x in dict.keys()):
if any(not x.isupper() for x in dict.keys()): 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 { // The Brazilian factorial is defined as: // brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1! // where n > 0 // For ex...
local_result *= temp;
temp--; } result *= local_result; 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 { // Given an array array list of positive integers x. return a sorted array list of all // elements that hasn't any even digit. //...
break;
} z = z / 10; } if (unique) { b.add(x.get(i)); } } Collections.sort(b); return b; } }
//For a given array of input numbers, calculate Mean Absolute Deviation // around the mean of this dataset. // Mean Absolute Deviation is the average absolute difference between each // element and a centerpoint (mean in this case): // MAD = average | x - x_mean | // >>> mean_absolute_deviation([1.0, 2.0, 3.0, 4.0]) //...
}
var mean = sum / numbers.length; var sum_abs_diff = 0; for(var i = 0; i < numbers.length; i++){ sum_abs_diff += Math.abs(numbers[i] - mean); } return sum_abs_diff / numbers.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 { // Given a positive integer, obtain its roman numeral equivalent as a string, // and return it in lowercase. // Restrictions: 1 <=...
}
if (num >= 90) { res += "xc"; num -= 90; } if (num >= 50) { res += "l"; num -= 50; } if (num >= 40) { res += "xl"; num -= 40; } while (num >= 10) { res += "x"; num -= 1...
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...
if len(str(date_list[2])) != 4:
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 true is array list elements are monotonically increasing or decreasing. // >>> monotonic((new ArrayList<Long>(Arrays.asList(...
}
if (l.get(i) > a) { dec = false; } a = l.get(i); } return inc || dec; } }
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...
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 { // 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,...
res.add(num);
} index++; } return res; } }
def any_int(x: float, y: float, z: float) -> bool: """ Create a function that takes 3 numbers. Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers. Returns false in any other cases. Examples >>> any_int(5, 2, 7) True >>> any_int...
return all([type(x) is int, type(y) is int, type(z) is int]) and (x == y + z or y == x + z or z == x + y)
import java.util.*; import java.lang.reflect.*; import org.javatuples.*; import java.security.*; import java.math.*; import java.io.*; import java.util.stream.*; class Problem { // Input to this function is a string containing multiple groups of nested parentheses. Your goal is to // separate those group into s...
if (c == '(') {
if (open_paren == 0) { temp = new StringBuffer(); } open_paren++; temp.append(c); } else if (c == ')') { open_paren--; temp.append(c); if (open_paren == 0) { output.add(temp.toString()); } } } return output; } }
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...
break
temp=temp//10 for i in s: x.remove(i) return sorted(x)
from typing import List def max_element(l: List[int]) -> int: """Return maximum element in the list. >>> max_element([1, 2, 3]) 3 >>> max_element([5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) 123 """ max_elem = l[0] for i in range(1, len(l)): if l[i] > max_elem: max_elem ...
return max_elem
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...
for (int j = i + 1; j < arrayList.size(); j++) {
for (int k = j + 1; k < arrayList.size(); k++) { if ((arrayList.get(i) + arrayList.get(j) + arrayList.get(k)) % 3 == 0) { count++; } } } } return count; } }
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 n <= 1:
return False for i in range(2, n): if n % i == 0: return False return True words = sentence.split() prime_words = [] for word in words: if is_prime(len(word)): prime_words.append(word) return ' '.join(prime_words)
def largest_divisor(n: int) -> int: """ For a given number n, find the largest number that divides n evenly, smaller than n >>> largest_divisor(15) 5 """ divisor = n - 1 while n % divisor != 0: divisor -= 1
return divisor
//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 !== numbers.length - 1){ result.push(delimeter); } } 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 an array array list of numbers, return whether or not they are sorted // in ascending order. If array list has more than 1 du...
}
} } return true; } } }
//Write a function that accepts an array of strings. // The array contains different words. Return the word with maximum number // of unique characters. If multiple strings have maximum number of unique // characters, return the one which comes first in lexicographical order. // >>> find_max(["name", "of", "string"]) /...
if(unique_word[char] === undefined){
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_un...
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 { // Check if in given array list of numbers, are any two numbers closer to each other than // given threshold. // >>> hasCloseEleme...
}
return false; } }
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...
return res.strip()
//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 // >>>...
var i = 0
while (i < l.length){ var j = i+1 while (j < l.length){ if ((l[i] + l[j]) === 0){ return true } j = j + 1 } i = i + 1 } 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 { // For a given number n, find the largest number that divides n evenly, smaller than n // >>> largestDivisor((15l)) // (5l) pu...
if (n % i == 0) {
return n / i; } } return 1; } }