This document contains 3 Pascal programs: 1) A program to convert seconds to hours and minutes. It takes seconds as input and calculates hours. 2) A program that defines a record type for time with hours, minutes, seconds. It takes time as input and calculates total seconds. 3) A program that calculates the midpoint between two points (x1, y1) and (x2, y2). It takes the x and y coordinates as input and outputs the x and y values of the midpoint.

1. TUGAS STRUKTUR DATA
NAMA
: NUR SUMIATI
KELAS/SMT
: KARY/2
1.
program konversi_detik_ke_jam;
uses wincrt;
var
detik:real;
jam:real;
begin
write('masukkan detik=');
readln(detik);
jam:=detik/3600;
writeln('jam=',jam:10:2);
end.

2. 2.
uses wincrt;
type jam =record
hh:longint;
mm:longint;
ss:longint;
end;
var
J :jam;
totaldetik :longint;
begin
write ('Jam : '); readln (J.hh);
write ('menit : '); readln (J.mm);
write ('detik : '); readln (J.ss);
totaldetik:= (J.hh*3600) + (J.mm*60) + J.ss;
write ('totaldetik= ', totaldetik);
end.

3. 3.
Program Koordinat_Titik_Tengah;
uses wincrt;
var
x1, x2, y1, y2, a, b, titik_tengah_x, titik_tengah_y:real;
begin
write('masukkan nilai x1 =');readln(x1);
write('masukkan nilai x2 =');readln(x2);
write('masukkan nilai y1 =');readln(y1);
write('masukkan nilai y2 =');readln(y2);
titik_tengah_x:=((x1+x2)/2);
titik_tengah_y:=((y1+y2)/2);
writeln('titik_tengah_x=',titik_tengah_x:10:2);
writeln('titik_tengah_y=',titik_tengah_y:10:2);
end.