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program bt;
uses crt;
var i, s, sa, sd, sc, sl, da, dd, dc, dl : integer;
a : array[1..50] of integer;
begin
clrscr;
for i:=1 to 10 do begin
write('Nhap phan tu thu ',i,': '); readln(a[i]);
end;
write('Day so vua nhap la: ');
for i:=1 to 10 do write(a[i],', ');
writeln;
s := 0; sa := 0; sd := 0; sc := 0; sl := 0; da := 0; dd := 0; dc := 0; dl := 0;
for i:=1 to 10 do begin
s := s + a[i];
if (a[i] > 0) then begin sd := sd + a[i]; dd := dd + 1 end;
if (a[i] < 0) then begin sa := sa + a[i]; da := da + 1 end;
if (a[i] mod 2 = 0) then begin sc := sc + a[i]; dc := dc + 1; end
else begin sl := sl + a[i]; dl := dl + 1 end;
end;
writeln('Tong cac phan tu trong mang la ',s);
writeln('Trung binh cong cac phan tu trong mang la ',s/10);
writeln('Tong cac so am la ',sa);
writeln('Tong cac so duong la ',sd);
writeln('Tong cac so chan la ',sc);
writeln('Tong cac so le la ',sl);
writeln('So cac so am la ', da);
writeln('So cac so duong la ', dd);
writeln('So cac so chan la ', dc);
writeln('So cac so le la ', dl);
readln
end.
Bài 1
Var s,i:integer;
tb:real;
Begin
Write('Nhap n = ');readln(n);
i:=1;
s:=0;
While i<=n do
Begin
s:=s+i;
i:=i+1;
End;
tb:=s/n;
Writeln('Tong la ',s);
Write('Trung binh la ',tb:10:2);
Readln;
End.
Bài 2
Var i,n,souoc:integer;
Begin
Write('Nhap n = ');readln(n);
i:=1;
While i <= n do
Begin
i:=i + 1;
If n mod i = 0 then souoc:=souoc + 1;
End;
If souoc = 1 then write(n,' la so nguyen to')
Else write(n,' khong la so nguyen to');
Readln;
End.
Sử dụng vòng lặp while...do:
program TinhTong20SoTNN;
var
i, sum: integer;
begin
i := 1;
sum := 0;
while i <= 20 do
begin
sum := sum + i;
i := i + 1;
end;
writeln('Tong cua 20 so tu nhien dau tien la: ', sum);
end.
Sử dụng vòng lặp for...do:
program TinhTong20SoTNN;
var
i, sum: integer;
begin
sum := 0;
for i := 1 to 20 do
sum := sum + i;
writeln('Tong cua 20 so tu nhien dau tien la: ', sum);
end.
program TinhTongTich;
var
N, i, Tong, Tich:integer;
begin
writeln('Nhap so nguyen duong N:');
readln(N);
i:=1;
Tong:=0;
Tich:=1;
while i<=N do
begin
Tong:=Tong+i;
Tich:=Tich*i;
i:=i+1;
end;
writeln('Tong cac so tu 1 den ', N, ' la: ', Tong);
writeln('Tich cac so tu 1 den ', N, ' la: ', Tich);
readln;
end.
var a:array[1..1000] of integer;
i,n,d:integer;
s:longint;
tbc:real;
begin
write('n = ');readln(n);
For i:=1 to n do
begin
write('Nhap so thu ',i,' = ');readln(a[i]);
s:=s+a[i];
if a[i] mod 2 = 0 then d:=d+1;
end;
tbc:=s/n;
writel('Co ',d,' so chan');
write('Trung binh cong cua day so la ',tbc:10:2);
readln
end.
Var a:array[1..15] of integer;
i,s:integer;
Begin
I:=1;
While i<=15 do
Begin
Write('Nhap phan tu thu ',i,' = ');readln(a[i]);
s:=s+a[i];
i:=i+1;
End;
Write('Tong la ',s);
Readln;
End.
Program HOC24;
var i,n: integer;
a: array[1..1000] of integer;
t: real;
begin
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
end;
t:=0;
for i:=1 to n do t:=t+a[i];
t:=t/n;
write('Trung binh cong cua day so la: ',t:5:2);
readln
end.