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Câu 1:
uses crt;
var n,i,kt:integer;
begin
clrscr;
write('Nhap n='); readln(n);
if n<2 then writeln(n,' khong la so nguyen to')
else begin
kt:=0;
for i:=2 to n-1 do
if n mod i=0 then kt:=1;
if kt=0 then writeln(n,' la so nguyen to')
else writeln(n,' khong la so nguyen to');
end;
readln;
end.
Câu 2:
uses crt;
var a:array[1..100]of integer;
i,n,max,min:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
max:=a[1];
min:=a[1];
for i:=1 to n do
begin
if max<a[i] then max:=a[i];
if min>a[i] then min:=a[i];
end;
writeln('So lon nhat la: ',max);
writeln('So nho nhat la: ',min);
readln;
end.
uses crt;
var a:array[1..100]of integer;
n,i:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
if n<=0 then writeln('Ban nhap sai, yeu cau nhap lai');
until n>0;
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
for i:=1 to n do
if a[i] mod 2=0 then write(a[i]:4);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long n,x,t;
int main()
{
cin>>n;
t=0;
while (n>0)
{
x=n%10;
t=t+x;
n/=10;
}
cout<<t;
return 0;
}
Var t,n:integer;
begin
write('nhap n = ');readln(n);
while n div 10 <> 0 do
begin
t:=t+(n mod 10);
n:=n div 10;
end;
write('Tong cac chu so cua ',n,' la ',t);
readln;
end.
program bai_5;
uses crt;
var a,b,c :real;
BEGIN
write('nhap vao so a'); Readln(a);
write('nhap vao so b'); Readln(b);
write('nhap vao so c'); Readln(c);
if a<0 then a:=-a;
max:=a;
if max <b then max:=b;
if max<c then max:=c;
write('gia tri tuyet doi cua a la:',a);
write('so lon nhat trong ba so a,b,c la:',max);
Readln
END.
Thanks
program im_14424;
uses crt;
var A: array[1..100000] of integer;
S,i,n: integer;
begin
clrscr;
write('Nhap vao n: ');
readln(n);
S:=0;
for i:=1 to n do
begin
write('Nhap A[',i,']: ');
readln(A[i]);
if (A[i] mod 2 = 0 then S:=S+i;
end;
write(S);
readln
end.