if(t2.seconds > t1.seconds) { --t1.minutes; t1.seconds += 60; } difference->seconds = t1.seconds - t2.seconds; if(t2.minutes > t1.minutes) { --t1.hours; t1.minutes += 60; } difference->minutes = t1.minutes-t2.minutes; difference->hours = t1.hours-t2.hours;}
Question
if(t2.seconds > t1.seconds) { --t1.minutes; t1.seconds += 60; } difference->seconds = t1.seconds - t2.seconds; if(t2.minutes > t1.minutes) { --t1.hours; t1.minutes += 60; } difference->minutes = t1.minutes-t2.minutes; difference->hours = t1.hours-t2.hours;}
Solution
The given code is written in C or C++ and it calculates the difference between two time periods. Here's a step-by-step explanation:
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The code starts by checking if the seconds of the second time period (t2) are greater than the seconds of the first time period (t1). If they are, it decreases the minutes of t1 by 1 and increases the seconds of t1 by 60. This is done to borrow 1 minute from the minutes of t1 and convert it into seconds.
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Then, it calculates the difference in seconds between t1 and t2 and stores it in the 'seconds' field of the 'difference' structure.
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Next, it checks if the minutes of t2 are greater than the minutes of t1. If they are, it decreases the hours of t1 by 1 and increases the minutes of t1 by 60. This is done to borrow 1 hour from the hours of t1 and convert it into minutes.
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Then, it calculates the difference in minutes between t1 and t2 and stores it in the 'minutes' field of the 'difference' structure.
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Finally, it calculates the difference in hours between t1 and t2 and stores it in the 'hours' field of the 'difference' structure.
The result is a new time period (stored in the 'difference' structure) that represents the difference between the two input time periods (t1 and t2).
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