Lots of issues we see can be avoided by doing so.
Your code should read the input from standard input (e.g. using input()/raw_input()
in Python or cin/scanf in C++). Do not use file I/O in your code.
Don't put any prompting string in it, as this string will be printed to standard output.
For example, this is wrong: input("please input: ").
Here is an example of reading a line of integers separated by space in Python3.
line = input()
line = line.strip().split(' ')
array = []
for number in line:
array.append(int(number))
Your code should write the output to standard output (e.g. using
print in Python and cout/printf in C++). Don't write to any file.
Make sure you follow the commands provided in the problem description to test your code. Submit your code after you pass all given test cases.
Some possible responses your code may get and how you could revise your code are given below.
Error message: The autograder failed to execute correctly. Contact your course staff for help in debugging this issue. Make sure to include a link to this page so that they can help you most effectively.
In most cases, this is because the name or the path of your submitted file is not correct.
Error message: Test Failed: Output did not match expected.
If your code fail on all test cases, likely you haven't passed the given test cases. If a subset of test cases fail, then your code haven't considered all situations; you may want to generate your own test cases to debug.
Error message: Test Failed: [Errno 32] Broken pipe
Error message: Test Failed: Command '...' timed out after 5 seconds
These two different results both represent your program times out (some of our test cases are large). If this happens, try to improve the efficiency of your code.
For example, trying to convert input strings into integers, as string operations are inefficient comparing to operations with integers. Following is a piece of code that is very inefficient:
if Array1[pointer1] >= Array2[pointer2]:
Output_string = Output_string + ' ' + str(Array2[pointer2])
Instead, the following example is the right way to do it:
if Array1[pointer1] >= Array2[pointer2]:
Output_array.append(Array2[pointer2])
Although very rare, it may also happen that your code runs within the required time but you get a time-out error. You can try to rerun the autograder or resubmit.