added weekly exercises of isp-ws25

c/isp-ws25/weeklies/week03/w03ex01.c

@@ -0,0 +1,52 @@
+/*
+- find mistakes in the given source code
+- lines with incorrect code are commented, with the correct input below
+
+[] take seconds as user input
+[] return seconds, minutes, hours as struct
+*/
+
+#include <stdio.h>
+
+// struct _Time_
+typedef struct _Time_
+{
+  int seconds_;
+  int minutes_;
+  int hours_;
+  //};
+} Time;
+
+Time convertTime(int total_seconds);
+
+int main(void)
+{
+  int total_seconds = 0;
+  //Time time;
+  Time time = {0, 0, 0};
+
+  printf("Total number of seconds: ");
+  //scanf("%c", &total_seconds);
+  scanf("%d", &total_seconds);
+
+  //time = convertTime(total_seconds)
+  time = convertTime(total_seconds);
+
+  printf("%-8s %8d\n%-8s %8d\n%-8s %8d\n", "Hours:", time.hours_, "Minutes:", time.minutes_, "Seconds:", time.seconds_);
+
+  return 0;
+}
+
+//float convertTime(total_seconds)
+Time convertTime(int total_seconds)
+{
+  Time result;
+
+  result.hours_ = total_seconds / 3600;
+  total_seconds = total_seconds % 3600;
+  result.minutes_ = total_seconds / 60;
+  //result.seconds_ = total_seconds * 60;
+  result.seconds_ = total_seconds % 60;
+
+  return result;
+}