C2つの期間の差を計算するプログラム

開始時刻と停止時刻を時間、分、秒で入力します。最後に、開始時間と停止時間の違いを見つける必要があります。

開始時間と停止時間の違いを見つけるためのロジック 以下に示します-

while (stop.sec > start.sec){
   --start.min;
   start.sec += 60;
}
diff->sec = start.sec - stop.sec;
while (stop.min > start.min) {
   --start.hrs;
   start.min += 60;
}
diff->min = start.min - stop.min;
diff->hrs = start.hrs - stop.hrs;

例

以下は、開始時間と停止時間の違いを見つけるためのプログラムです-

#include <stdio.h>
struct time {
   int sec;
   int min;
   int hrs;
};
void diff_between_time(struct time t1,
struct time t2,
struct time *diff);
int main(){
   struct time start_time, stop_time, diff;
   printf("Enter start time. \n");
   printf("Enter hours, minutes and seconds: ");
   scanf("%d %d %d", &start_time.hrs,
   &start_time.min,
   &start_time.sec);
   printf("Enter the stop time. \n");
   printf("Enter hours, minutes and seconds: ");
   scanf("%d %d %d", &stop_time.hrs,
   &stop_time.min,
   &stop_time.sec);
   // Difference between start and stop time
   diff_between_time(start_time, stop_time, &diff);
   printf("\ntime Diff: %d:%d:%d - ", start_time.hrs,
   start_time.min,
   start_time.sec);
   printf("%d:%d:%d ", stop_time.hrs,
   stop_time.min,
   stop_time.sec);
   printf("= %d:%d:%d\n", diff.hrs,
   diff.min,
   diff.sec);
   return 0;
}
// Computes difference between time periods
void diff_between_time(struct time start,
struct time stop,
struct time *diff){
   while (stop.sec > start.sec) {
      --start.min;
      start.sec += 60;
   }
   diff->sec = start.sec - stop.sec;
   while (stop.min > start.min) {
      --start.hrs;
      start.min += 60;
   }
   diff->min = start.min - stop.min;
   diff->hrs = start.hrs - stop.hrs;
}

出力

上記のプログラムを実行すると、次の結果が得られます-

Enter start time.
Enter hours, minutes and seconds: 12 45 57
Enter the stop time.
Enter hours, minutes and seconds: 20 35 20
time Diff: 12:45:57 - 20:35:20 = -8:10:37