12

a) Máy tính sẽ thực hiện 6 vòng lặp

t=0; j=30

b) 

uses crt;

var j,t:integer;

begin

t:=105; 

j:=0;

while t>=20 do

begin

j:=j+5;

t:=t-j;

end;

writeln(t);

writeln(j);

readln;

end.

like mạnh cho bạn

Uses Crt;
Var A : Array [1..100] Of Integer ;
i , j , n , T : Integer ;

BEGIN
Clrscr ;
Write(' Do dai cua day so N = ') ; Readln (N) ;
Writeln (' Nhap day so : ') ;
For i := 1 To N Do
Begin
Write('A[', i ,'] = ') ; Readln ( A ) ;
End ;
i := 1 ;
While (i <= n-1) Do
Begin
j := i+1;
While j<=n do
Begin
If A[j] < A then
Begin
T := A[j];
A[j ] := A;
A := T ;
End ;
j := j + 1;
End ;
i := i + 1;
End ;
Writeln(' Day sau khi sap xep : ') ;
For i := 1 To N Do Write(A : 4) ;
Readln ;
END .

dài VL

Program tính_chia;

Uses crt;

Var i, n, s, a: integer;

Begin

Write('Nhap so n: '); readln(n);

s:=1;

For i:=1 to n do s:=s*i;

a:=0;

For i:=1 to n do a:=a+i;

Writeln('Ket qua phep tinh chia bang: ', s/a :10:2);

readln;

End.

2/ program bt;

var N,i:integer;

begin

write('nhap so N'); readln(N);

writeln;

writeln (' bang nhan ', N);

writeln;

for i:=1 to 10 do writeln(N,'x',1:2,'= ', N*1;3); end

readln

end.

Mik chỉ bít làm bài 2 thôi!

program loc_so_le;

uses crt;

var N,y: longint;

begin

Writeln('Nhap so N '); Readln(N);

for y:=1 to N do if (y mod 2) <>0 then Writeln (y,' la so le');

Readln;

end.

pascal hả bn??

mình thấy ở trang 71 SGK có bài tương tự

program Tinh_trung_binh_cong;

uses crt;

var n, dem : integer;

a, TB : real;

begin clrscr;

dem:= 0; TB:=0;

write('Nhap so cac so can tinh n = '); realn(n);

write dem < n do

begin dem:= dem + 1;

write('Nhap so thu ', dem,' = '); realn(a);

TB:= TB + a;

end;

TB:= TB/n;

writeln('Trung binh cua ', n, ' so la = ', TB:10:3);

writeln('Nhan Enter de thoat ...');

readln;

end.