As all that matters is that the output files match, it makes no difference at all at what point in your program's execution that this output is written. If your program starts by printing 'Enter the number' and the problem does not tell you to do so, then since this is not part of the correct output, you will be never be judged correct regardless of what the rest of your program does. The output generated by your program must match the correct output exactly in order to be judged correct. Your program is run on each of those input files. For each problem, there will be one or more input files, each according to the specifications mentioned in the problem statement, and corresponding correct output files. Your code is tested by a code-checker automatically, not by a human being, and you have to write your code accordingly. How does online judge determines whether the solution is correct?

X - Time Limit mentioned in the problem statement.

Swift 4.1 (Note: We run and evaluate in Linux environment) Swift 3.1.1 (Note: We run and evaluate in Linux environment) Time Limit: X Flags: -std=gnu99 -w -O2 -fomit-frame-pointer -Wno-import -lobjc -lm

Time Limit: 2X Flags: -unsafe+ -warn:0 Runtime. Time Limit: X Flags: -std=c++14 -w -O2 -fomit-frame-pointer -lm

Time Limit: X Flags: -std=c++11 -w -O2 -fomit-frame-pointer -lm Time Limit: X Flags: -std=gnu99 -w -O2 -fomit-frame-pointer -lm

Conio library c++