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program CapSoChinhPhuong;
uses crt;
var
n, a, b, count: integer;
begin
clrscr;
write('Nhap vao so nguyen n: ');
readln(n);
count := 0;
writeln('Cac cap so a, b sao cho a^2 + b^2 la so chinh phuong la:');
for a := 1 to n do begin
for b := 1 to n do begin
if (sqr(a) + sqr(b)) mod round(sqrt(sqr(a) + sqr(b))) = 0 then begin
writeln('a = ', a, ', b = ', b);
count := count + 1;
end;
end;
end;
writeln('Tong so cap so la: ', count);
readln;
end.
uses crt;
var i,n,t:integer;
begin
clrscr;
t:=0;
for i:=1 to 100 do
if i mod 3=0 then
begin
write(i:4);
t:=t+i;
end;
writeln;
writeln(t);
readln;
end.
program Tim_Uoc;
uses crt;
var
n, i: integer;
begin
clrscr;
write('Nhap vao mot so nguyen duong n: ');
readln(n);
writeln('Cac uoc cua so ', n, ' la: ');
for i:=1 to n do
begin
if n mod i = 0 then
writeln(i);
end;
readln;
end.
a)
uses crt;
var i,n:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until n<100;
if n mod 2=0 then
begin
for i:=0 to n do
if i mod 2=0 then write(i:4);
end
else writeln(n,' khong la so chan');
readln;
end.
b)
uses crt;
var i,n:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until n<100;
if n mod 2=1 then
begin
for i:=1 to n do
if i mod 2=1 then write(i:4);
end
else writeln(n,' khong la so le');
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;
}
program tim_max;
uses crt;
var i,n,max:integer;
x:array[1..100]of byte;
begin
clrscr;
write('nhap so n:');readln(n);
i:=1;
while i<=n do
begin
write('x[',i,']=');readln(x[i]);
i:=i+1;
end;
max:=x[1];i:=1;
while i<=n do
begin
if max<x[i] then max:=x[i];
i:=i+1;
end;
write('so lon nhat la:',max);
readln;
end.
uses crt;
var i,n:longint;
function NT(a:longint):boolean;
var dem,j:longint;
begin
dem:=0;
for j:=1 to a do if(a mod j=0)then inc(dem);
NT:=dem=2;
end;
begin
clrscr;
write('nhap n:');readln(n);
for i:=1 to n do if(NT(i))then write(i,' ');
readln
end.
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