I'm trying to get a program to display time elapsed...what else do I need here?
Also, I have times to be used as test vectors: time1 3:45:15 and time2 9:44:03....using military time
Code:#include <stdio.h> #include <stdbool.h> elapsed_time (time1, time2) { int time1; int time2; int hour; int min; int sec; }; int main () { elapsed_time (time1, time2) printf("Enter the time right now (hh mm ss): "); scanf("%i%i%i", &time1.hour, &time1.min, &time1.sec); }
Last edited by Dom; 10-10-2011 at 11:51 AM.
Is elapsed_time supposed to be a struct or a function?
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
elapsed_time (time1, time 2) is the call so it probably is a function
You are writing the code, so there is no "probably". It is, or it is not. If it is, then your function definition is missing the return type and the parameter types. Your main function is missing some variable declarations, etc.
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Obviously......
If it was obvious to you, then why did you ask?
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I'm not worrying about syntax right now or missing returns... I'm looking for other functions I would need to implement.
In that case, I really don't see what is the problem: you need to record (or in this case, have the user input) the start time, end time, then compute the difference and display it. In terms of algorithm, not implementation, it is as simple as that.
If you want to discuss an algorithm, I suggest that you do so in words, or by pseudocode, or with a flowchart (but this can be inconvenient here), rather than with a broken C program (unless you make it clear that it is not C, but pseudocode).
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so I'll have
Code:int main() { elapsed_time(time1, time2) //to call function printf("Time elapsed from %i and %i = %i", time1, time2, ?) // ? should i put difference of time1 and time2...i don't know how to subtract times because there are 60 seconds in a minute and not 100. } struct time { int hour; int minute; int second; } elapsed_time(time1, time2) { //what do I put in here, this? time1=3:45:15 time2=9:44:03 }
Dunno, you seem to be trying to implement, then you insist that you are just determining the steps of the algorithm.
I have already told you what I think are the basic steps; I don't care if you have no clue as to how to represent the time and how to subtract the time, because that is just implementation detail. What I can say is that your question does not make sense: elapsed time means the difference between some start and end time, so asking if you should "put difference of time1 and time2" after printing the elapsed time is strange.
On the other hand, if you are thinking of the implementation, I suggest that you check if the functionality available via <time.h> would be sufficient for your needs.
Last edited by laserlight; 10-10-2011 at 12:49 PM.
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