--- active: true # question status = true or false language: |- # bash, scilab, python, c/c++, java python partial_grading: false snippet: '' summary: |- Roots of quadratic equation type: |- integer grade_assignment_upload: false description: |- # Entire question description. Type in the box below, one of the roots to the following quadratic equation?
x 2 + x - 6 = 0 points: 1.0 testcase: - test_case_type: |- integertestcase correct: 2 - test_case_type: |- integertestcase correct: -3 files: [] --- active: true language: |- python partial_grading: false snippet: '' summary: |- Print Output type: |- string grade_assignment_upload: false description: |- What is the output for the following code in Python 2.x:
print(2, "Hello"*2, ":" ,"Bye") points: 1.0 testcase: - string_check: |- #exact or lower exact test_case_type: |- stringtestcase correct: |- (2, 'HelloHello', ':', 'Bye') files: [] --- active: true language: |- python partial_grading: false snippet: '' summary: |- Adding decimals type: |- float grade_assignment_upload: false description: |- Write down the resultant value of the following - 
3.4566+2.122

points: 1.0 testcase: - test_case_type: |- floattestcase correct: 5.5786 error_margin: 0.0 files: [] --- active: true language: |- bash partial_grading: false snippet: |- #!/bin/bash summary: |- Extract columns from files type: |- code grade_assignment_upload: false description: |- Write a bash script that takes exactly three file arguments. The first argument (file1.csv) would have 3 columns, the second argument (file2.csv) would have 2 columns. The third argument (file3.csv) would have 2 columns.

All files have columns delimited by : (colon).

We need the 2nd column from file1.csv to be removed and concatenated BEFORE file2.csv and this concatenated file should come BESIDE file3.csv. Left is file3.csv, and the LATER columns come from file1.csv and file2.csv.

The delimiter while putting the files BESIDE each other should again be : (colon) 

  Note: - Do not hard-code the filenames. They will be passed in as arguments.
  Assume no headers (to avoid header-non-repetition issues).
points: 2.0 testcase: - test_case: |- #!/bin/bash cat $1 | cut -d: -f2 | paste -d: $3 - $2 weight: 1.0 test_case_type: |- standardtestcase test_case_args: |- file1.csv file2.csv file3.csv files: - - file1.csv - false - - file2.csv - false - - file3.csv - false --- active: true language: |- python partial_grading: false snippet: |- def is_palindrome(s): summary: |- Check Palindrome type: |- code grade_assignment_upload: false description: |- Write a function is_palindrome(arg) which will take one string argument.
Return True if the argument is palindrome & False otherwise.
The function should be case sensitive.

For Example:
is_palindrome("Hello") should return False
points: 2.0 testcase: - test_case: |- assert is_palindrome("hello") == False weight: 1.0 test_case_type: |- standardtestcase test_case_args: '' - test_case: |- assert is_palindrome("nitin") == True weight: 1.0 test_case_type: |- standardtestcase test_case_args: '' - test_case: |- assert is_palindrome("madaM") == False weight: 1.0 test_case_type: |- standardtestcase test_case_args: '' files: [] --- active: true language: |- python partial_grading: true snippet: '' summary: |- For Loop over String type: |- code grade_assignment_upload: false description: |- Write a python script that accepts a string as input
The script must print each character of the string using a for loop. For example; 
  Input:
  box
  Output
  b
  o
  x
points: 1.0 testcase: - expected_output: |- s t r i n g weight: 1 test_case_type: |- stdiobasedtestcase expected_input: |- string - expected_output: |- s t o p s i g n weight: 1 test_case_type: |- stdiobasedtestcase expected_input: |- s t o p s i g n - hook_code: |- def check_answer(user_answer): ''' Evaluates user answer to return - success - Boolean, indicating if code was executed correctly mark_fraction - Float, indicating fraction of the weight to a test case error - String, error message if success is false In case of assignment upload there will be no user answer ''' success = False err = "You are using while in your code." mark_fraction = 0.0 if not 'while' in user_answer: success=True err = "Correct Answer" mark_fraction = 1.0 return success, err, mark_fraction test_case_type: |- hooktestcase weight: 1.0 files: [] --- active: true language: |- c partial_grading: false snippet: '' summary: |- Add 3 numbers type: |- code grade_assignment_upload: false description: |- Write a program to add 3 numbers.
Function Name is to be called add 


  Note: You do not have to print anything, neither you have to make the function call. 
  Just define the function to perform the required operation, return the output & click on check answer.
  Also, note that the function name should exactly be as mentioned above.
points: 2.0 testcase: - test_case: |- #include #include extern int add(int, int, int); template void check(T expect,T result) { if (expect == result) { printf("\nCorrect:\n Expected %d got %d \n",expect,result); } else { printf("\nIncorrect:\n Expected %d got %d \n",expect,result); exit (1); } } int main(void) { int result; result = add(0,0,0); printf("Input submitted to the function: 0, 0, 0"); check(0, result); result = add(2,3,3); printf("Input submitted to the function: 2, 3, 3"); check(8,result); printf("All Correct\n"); } weight: 1.0 test_case_type: |- standardtestcase test_case_args: '' files: [] --- active: true language: |- python partial_grading: false snippet: '' summary: |- Hello World in File type: |- upload grade_assignment_upload: true description: |- Upload a file called new.txt which contains the string Hello, World! in it. points: 1.0 testcase: - hook_code: |- def check_answer(user_answer): ''' Evaluates user answer to return - success - Boolean, indicating if code was executed correctly mark_fraction - Float, indicating fraction of the weight to a test case error - String, error message if success is false In case of assignment upload there will be no user answer ''' success = False err = "Incorrect Answer" # Please make this more specific mark_fraction = 0.0 try: with open('new.txt', 'r') as f: if "Hello, World!" in f.read(): success = True err = "Correct Answer" mark_fraction = 1.0 else: err = "Did not found string Hello, World! in file." except IOError: err = "File new.txt not found." return success, err, mark_fraction test_case_type: |- hooktestcase weight: 1.0 files: []