In April 2024
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1)Define a ruby function named milestones.
2) Input parameter of the milestones method should be an array of 'running events taken by
a person' which is again an array.
Each running event taken by a person is an array which contains the following values
1st array element - date when he participated in the run,
2nd array element - time taken to complete the run,
3rd array element - distance of the run
example Input below
Array element description: [ date_of_run, finish_time_in_minutes, length_of_run_in_kms
]
john_runs = [
[ "29-5-2017", 15, 5],
[ "9-3-2017", 35, 10],
[ "29-3-2017", 13, 5],
]
3) Implement the logic in the method so that the output should be an array of fastest times for
distances 5, 10 and 15 kms in that order
output = [ fastest time for 5 kms, fastest time for 10 km, fastest time for 15 kms]
-> If no run is found in the distance, the output should be 0 for that
ex: for the input above example john_runs, only runs with 5 and 10 kms are performed
and no 15km run is performed, the output should be [13, 35, 0],explanation of the output array: 13 - fastest time for a 5 km run, performed by john , 35 -
fastest time for 10 km run performed by john, 0 - as no 15 km run is performed by john
Your task is to help them find out how many different menu item combinations they can order. Since there can be many menu items with the same price, we are interested only in unique price combinations. Refer output specifications and examples to get a better understanding.
Constraints:
Pi > 0 ; where i = 1 to N and Pi denotes the price of the ith item
S > 0
i need a code .......
here is sample code
class C
def arr
@num ||= []
end
when we use or equals operator in this circumstance.first call to this method initializes it and added a element thats fine.how does it know when a second call to made to arr is done that array has one elemnt in it..
I had an error it says that NoMethodError in HomeworksController
and here my HomeworksController class:
class HomeworksController < ApplicationController
before_action :signed_in_user, only: [:create, :destroy]
before_action :correct_user, only: :destroy
def create
@homework = current_user.homeworks.build(homework_params)
if @homework.save
flash[:success] = "Homework created!"
redirect_to root_url
else
@feed_items = []
render 'static_pages/home'
end
end
def new
@homework =Homework.new
end
def destroy
@homework.destroy
redirect_to root_url
end
def index
@homeworks=Homework.all
end
private
def homework_params
params.require(:homework).permit(:content, :attachment)
end
def correct_user
@homework = current_user.homeworks.find_by(id: params[:id])
redirect_to root_url if @homework.nil?
end
end
1) I don't know if this project is in just ruby or it is in rails?
2) It seems that rack file is missing in that project I want to know that if it is true or false?
pic_file_name
pic_content_type
pic_file_size
pic_updated_at
in the user model. I do not have url of the pic in the model, then how can i able to get the images using
<%= image_tag @user.pic.url %>
I having a problem with the Active record query interface . I have to write code for adding client to group and whenever i select any group display all the clients related to this group.
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