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Candy Distribution for StudentsIn a school, there is a row of  N students, each with their own academic rating. The teachers want to reward the students with candies, but they have specific rules:Minimum Candy Rule: Every student must receive at least one candy.Higher Rating, More Candies: Students with a higher academic rating should receive more candies than their neighbors.What is the minimum number of candies you must give?Input FormatThe first and only argument is an integer array A representing the rating of children.Output FormatReturn an integer representing the minimum candies to be given.Example InputsInput 1: A = [1, 2]Input 2: A = [1, 5, 2, 1]Example OutputsOutput 1: 3Output 2: 7Problem Constraints1 <= N <= 105-109 <= A[i] <= 109Write Your Code

Question

Candy Distribution for StudentsIn a school, there is a row of  N students, each with their own academic rating. The teachers want to reward the students with candies, but they have specific rules:Minimum Candy Rule: Every student must receive at least one candy.Higher Rating, More Candies: Students with a higher academic rating should receive more candies than their neighbors.What is the minimum number of candies you must give?Input FormatThe first and only argument is an integer array A representing the rating of children.Output FormatReturn an integer representing the minimum candies to be given.Example InputsInput 1: A = [1, 2]Input 2: A = [1, 5, 2, 1]Example OutputsOutput 1: 3Output 2: 7Problem Constraints1 <= N <= 105-109 <= A[i] <= 109Write Your Code

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Solution

This problem can be solved using a greedy algorithm. Here is a Python solution:

def minCandies(ratings):
    N = len(ratings)
    candies = [1]*N
    for i in range(1, N):
        if ratings[i] > ratings[i-1]:
            candies[i] = candies[i-1] + 1
    for i in range(N-2, -1, -1):
        if ratings[i] > ratings[i+1] and candies[i] <= candies[i+1]:
            candies[i] = candies[i+1] + 1
    return sum(candies)

Here is how the code works:

  1. Initialize an array candies of size N (the number of students) with all elements as 1. This ensures the "Minimum Candy Rule" is satisfied.

  2. Traverse the ratings array from left to right. If the current student's rating is greater than the previous student's rating, then the current student gets one more candy than the previous student.

  3. Traverse the ratings array from right to left. If the current student's rating is greater than the next student's rating and the current student has less or equal candies than the next student, then the current student gets one more candy than the next student.

  4. The minimum number of candies that must be given is the sum of all elements in the candies array.

For example, if the input is [1, 5, 2, 1], the output will be 7. The distribution of candies will be [1, 3, 2, 1].

This problem has been solved

Similar Questions

You are given two positive integers n and limit.Return the total number of ways to distribute n candies among 3 children such that no child gets more than limit candies. Example 1:Input: n = 5, limit = 2Output: 3Explanation: There are 3 ways to distribute 5 candies such that no child gets more than 2 candies: (1, 2, 2), (2, 1, 2) and (2, 2, 1).Example 2:Input: n = 3, limit = 3Output: 10Explanation: There are 10 ways to distribute 3 candies such that no child gets more than 3 candies: (0, 0, 3), (0, 1, 2), (0, 2, 1), (0, 3, 0), (1, 0, 2), (1, 1, 1), (1, 2, 0), (2, 0, 1), (2, 1, 0) and (3, 0, 0).

Candy DistributionChef has 𝑁N candies. He has to distribute them to exactly 𝑀M of his friends such that each friend gets equal number of candies and each friend gets even number of candies. Determine whether it is possible to do so.NOTE: Chef will not take any candies himself and will distribute all the candies.Input FormatFirst line will contain 𝑇T, number of test cases. Then the test cases follow.Each test case contains of a single line of input, two integers 𝑁N and 𝑀M, the number of candies and the number of friends.Output FormatFor each test case, the output will consist of a single line containing Yes if Chef can distribute the candies as per the conditions and No otherwise.You may print each character of the string in uppercase or lowercase (for example, the strings yes, Yes, yEs, and YES will all be treated as identical).

Have the user input two integers between 1 to 20, inclusive. Create a teaParty method that takes two integer parameters that represent the quantity of tea and candy. In the teaParty method determine if the party is 1=bad, 2=good, or 3=great.A party is good (2) if both tea and candy are at least 5.if either tea or candy is at least double the amount of the other one, the party is great (3).if either tea or candy is less than 5, the party is always bad (1).Return to the main method the integer value if the party is 1=bad, 2=good, or 3=great.Method call Example: teaParty(tea, candy);Test Data:teaParty(6, 8) → 2teaParty(3, 8) → 1teaParty(20, 6) → 3

There are three friends and a total of 𝑁N candies.There will be a fight amongst the friends if all of them do not get the same number of candies.Chef wants to divide all the candies such that there is no fight. Find whether such distribution is possible.Input FormatThe first line of input will contain a single integer 𝑇T, denoting the number of test cases.Each test case consists of a single integer 𝑁N - the number of candies.Output FormatFor each test case, output YES, if we can distribute all the candies between the three friends equally. Otherwise output NO.You can output each character of the answer in uppercase or lowercase. For example, the strings yEs, yes, Yes, and YES are considered the same.Constraints1≤𝑇≤1001≤T≤1001≤𝑁≤1001≤N≤100Sample 1:InputOutput43426YESNONOYESExplanation:Test case 11: Chef can distribute all 33 candies such that each friend gets 11 candy. Since all three friends have same number of candies, there is no fight.Test case 22: There exist no way of distributing all candies such that all three friends have same number of candies.Test case 33: There exist no way of distributing all candies such that all three friends have same number of candies.Test case 44: Chef can distribute all 66 candies such that each friend gets 22 candies. Since all three friends have same number of candies, there is no fight.Did you like the problem statement?113 users found this helpful

Mary has a bag of candies and decides to share them with her friends.Input the total number of candies Mary has, the number of candies Mary eats, and the number of friends Mary wants to share the remaining candies with. Calculate the remaining candies after Mary eats some, and use a pointer to store the result. Calculate and display how many candies each friend will receive.Input format :The first line of input consists of an integer m, representing the total number of candies Mary has.The second line consists of an integer n, representing the number of candies Mary eats.The third line consists of an integer x, representing the number of friends to share with.Output format :

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