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program fibonaci;
uses crt;
var f:array[1..100]of integer;
n,i,j:integer;
begin
clrscr;
write('n='); readln(n);
f[1]:=1;
f[2]:=1;
i:=2;
repeat
inc(i);
f[i]:=f[i-1]+f[i-2];
until i=n;
writeln(n,' so fibonaci dau tien la: ');
for i:=1 to n do
write(f[i]:4);
readln;
end.
uses crt;
var a:array[1..10]of integer;
i,n,dem:integer;
begin
clrscr;
for i:=1 to 10 do
begin
repeat
write('A[',i,']='); readln(a[i]);
until a[i]>0;
end;
writeln('Day so vua nhap la: ');
for i:=1 to 10 do
write(a[i]:4);
dem:=0;
for i:=1 to n do
if a[i] mod 2=0 then inc(dem);
writeln;
writeln('So luong so chan la: ',dem);
readln;
end.
Câu 1:
var a:array[1..100]of integer;
Câu 2:
uses crt;
var a:array[1..10]of integer;
i:integer;
begin
clrscr;
for i:=1 to 10 do
begin
write('A[',i,']='); readln(a[i]);
end;
for i:=1 to 10 do
write(a[i]:4);
readln;
end.
Câu 3:
uses crt;
var a:array[1..15]of integer;
i,n,t:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until (0<n) and (n<=15);
for i:=1 to n do
begin
repeat
write('A[',i,']='); readln(a[i]);
until a[i]<=100;
end;
writeln('Mang da nhap la: ');
for i:=1 to n do
write(a[i]:4);
writeln;
t:=0;
for i:=1 to n do
if a[i] mod 3=0 then t:=t+a[i];
writeln('Tong cac phan tu chia het cho 3 la: ',t);
writeln('Cac so chan o vi tri le trong day la: ');
for i:=1 to n do
if (a[i] mod 2=0) and (i mod 2=1) then write(a[i]:4);
readln;
end.
uses crt;
var a:array[1..100]of integer;
i,n,k:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
write('Nhap k='); readln(k);
for i:=1 to n do
if a[i] mod k=0 then write(a[i]:4);
readln;
end.
Bài 3:
uses crt;
const fi='teptong.txt';
var a,b:integer;
f1:text;
begin
clrscr;
assign(f1,fi); rewrite(f1);
readln(a,b);
writeln(a+b);
writeln(f1,a+b);
close(f1);
readln;
end.
uses crt;
var a:array[1..100]of integer;
i:integer;
begin
clrscr;
for i:=1 to 100 do
begin
repeat
write('A[',i,']='); readln(a[i]);
until a[i]>0;
end;
for i:=1 to n do
write(a[i]:4);
readln;
end.
Chương trình:program bai_10_chuong_4;uses crt;vars: string[100];i, dem: integer;Beginclrscr;write('Nhap xau vao:'); readln(s); dem:= 0;for i:= 1 to length(s) doif ('0'<=s[i]) and(s[i]<=’9') then dem:=dem+l;Writeln('Trong xau s co '»dem,' chu so thap phan');readln;End.
Program HOC24;
var a,b,c,d,max: integer;
t: longint;
begin
write('Nhap a; b; c; d: '); readln(a,b,c,d);
t:=a+b+c+d;
writeln('Tong 4 so tren la: ',t);
max:=a;
if max<b then max:=b;
if max<c then max:=c;
if max<d then max:=d;
write('So lon nhat cua chung la: ',max);
readln
end.
*Cách khác:
uses crt;
var a,b,c,d,max:integer;
begin
clrscr;
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
write('Nhap c='); readln(c);
write('Nhap d='); readln(d);
writeln('Tong cua 4 so la: ',a+b+c+d);
max:=a;
if max<b then max:=b;
if max<c then max:=c;
if max<d then max:=d;
writeln('Gia tri lon nhat la: ',max);
readln;
end.
uses crt;
var s:string;
i,d,dem:integer;
begin
clrscr;
write('Nhap xau S:'); readln(s);
d:=length(s);
writeln('Cac ki tu so co trong xau S:');
dem:=0;
for i:=1 to d do
if s[i] in ['0'..'9'] then
begin
write(s[i]:4);
inc(dem);
end;
writeln;
writeln('So ki tu chu so co trong xau S: ',dem);
for i:=1 to d do
if s[i] in ['0'..'9'] then s[i]:='A';
writeln('Xau sau khi doi la: ',s);
readln;
end.
