#include <stdio.h>
float difference(float lt, float lt2)
{
float timedifference;
timedifference = (lt - lt2) / 15;
return timedifference;
}
int main(void)
{
float lt = 0;
float lt2 = 139.7;
printf("%2f", difference
(lt
, lt2
)); return 0;
}
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