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Bài 1:
uses crt;
var n,i,s:integer;
begin
clrscr;
write('Nhap n='); readln(n);
s:=0;
for i:=1 to n do
if i mod 6=0 then s:=s+i;
writeln(s);
readln;
end.
Bài 2:
uses crt;
var a,b,c,ucln,i:integer;
begin
clrscr;
write('a='); readln(a);
write('b='); readln(b);
write('c='); readln(c);
while a<>b do
begin
if a>b then a:=a-b
else b:=b-a;
end;
ucln:=a;
while ucln<>c do
begin
if ucln>c then ucln:=ucln-c
else c:=c-ucln;
end;
writeln(ucln);
readln;
end.
program Le_Nho_Hon_Hoac_Bang_n;
uses crt;
var
n, i: integer;
begin
clrscr;
write('Nhap vao mot so nguyen duong n: ');
readln(n);
while n <= 0 do
begin
writeln('So ban nhap khong hop le. Xin vui long nhap lai: ');
readln(n);
end;
clrscr;
writeln('Cac so le nho hon hoac bang ', n, ' la:');
i := 1;
while i <= n do
begin
if i mod 2 <> 0 then
writeln(i);
i := i + 1;
end;
readln;
end.
1. Uses crt;
var n,i: integer;
begin clrscr;
readln(n);
for i:=1 to n do write(i:3);
readln;
end.
2. Uses crt;
var n,i: integer;
begin clrscr;
readln(n);
for i:=1 to n do if(i mod 2 = 0) then write(i:3);
readln;
end.
câu 1
Program Nguyen_to;
Var n,i:integer;
Function NT(n:integer):Boolean;
Var ok: Boolean;
i: integer;
Begin ok:=true;
for i:=2 to n-1 do if (n mod i)= 0 then ok:=ok and false;
if n < 2 then NT:=false else NT:=ok;
End;
Begin Write('Nhap n: ');
Readln(n); i:=n;
Repeat i:=i+1;
Until NT(i);
Write('So nguyen to nho nhat lon hon ',n, 'la: ',i);
Readln End.
câu 2
uses crt;
const so: set of char=['0','1','2','3','4','5','6','7','8','9'];
var a:array[1..100] of integer;
st,b:string;
c,l,i,n,j:integer;
s, Max: integer;
begin clrscr;
write('Nhap xau:');
readln(st);
l:=length(st);
i:=1;
n:=0;
repeat if (st[i] in so) then begin b:='';
repeat b:=b+st[i];
inc(i);
until (not(st[i] in so)) or (i>l);
inc(n);
val(b,a[n],c);
end;
inc(i);
until i>l;
Max:=a[1];
for i:=2 to n do If Max<A[i] Then Max:=A[i];
Writeln('Phan tu lon nhat cua mang:', Max);
readln;
end.
1:
#include <bits/stdc++.h>
using namespace std;
long long x;
int main()
{
cin>>x;
if (x%5==0) cout<<"Yes";
else cout<<"No";
return 0;
}
2:
#include <bits/stdc++.h>
using namespace std;
long long x;
int main()
{
cin>>x;
if (x%15==0) cout<<"Yes";
else cout<<"No";
return 0;
}
a)
uses crt;
VAR
n, d, i: integer;
BEGIN
clrscr;
Writeln ('Nhap vao n='); readln (n);
d : = 1;
For i: = 1 to n do
d: = d*i;
Writeln ('d=',d);
Readln;
END.
c)
uses crt;
VAR
n, i, demuoc: integer;
BEGIN
clrscr;
Writeln ('Nhap vao n='); readln (n);
demuoc: = 0;
For i: = 1 to n do
If n mod i = 0 then
demuoc : = demuoc + 1;
If demuoc = 2 then
Writeln ('n la so nguyen to')
ELSE
Writeln ('n khong phai la so nguyen to');
Readln ;
END.
Còn phần b bạn tự nghĩ nha!
Chúc bạn học tốt!
