program So_sanh;

uses crt;

var a, b: integer;

begin

writeln('Nhap so thu nhat');

readln(a);

writeln('Nhap so thu hai');

readln(b);

if a > b then write(a, '>' b) else write(a, '<' b);

end.

Câu 2:

Program nii;

Uses crt;

Var a,b,c,A:integer;

Begin

Write ('nhap a');

Readln (a);

Write ('nhap b');

Readln (b);

Write ('nhap c');

Readln (c);

A:=a;

If A<b then A:=b;

If A<c then A:=c;

Write ('Ket qua',A);

Readln;

End.

Câu 1

Program ntg;

Uses crt;

Var A,x,y:integer;

Begin

Write ('nhap x');

Readln (x);

Write ('nhap y');

Readln ('y');

A:=x+y;

Write ('Ket qua',A);

Readln;

End.

Câu 2: 

uses crt;

var a,b,c,max:integer;

begin

clrscr;

write('Nhap a='); readln(a);

write('Nhap b='); readln(b);

write('Nhap c='); readln(c);

max:=a;

if max<b then max:=b;

if max<c then max:=c;

writeln('So lon nhat trong 3 so la: ',max);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long x,y;

int main()

{

cin>>x>>y;

if (x>y) cout<<"x la so lon";

else cout<<"x khong la so lon";

return 0;

}

Var x,y:real;

Begin

Write('Nhap so a = ');readln(a);

Write('Nhap so b = ');readln(b);

If a > b then write(a,' la so lon')

Else write(a,' khong la so lon');

Readln;

End.

Sửa a thành x, b thành y nhé em

#include <bits/stdc++.h>

using namespace std;

long long a,b;

int main()

{

cin>>a>>b;

cout<<fixed<<setprecision(2)<<1/(a*1.0+b*1.0);

return 0;

}

-so sanh hai so nhap tu ban phim:

var a,b:integer;

begin

clrscr;

write('Nhap so thu nhat:');readln(a);

write('Nhap so thu hai:');readln(b);

if a>b then writeln(a,'lon hon',b)

else writeln(a,'nho hon,'b);

if a=b then writeln(a,'bang',b);

readln;

end.

program ctdt;
uses crt;
type mang=array[1..10]of integer;
var a,b,min,x,y,i,j,tam:integer;
t,t1:mang;
(*------------------------*)
BEGIN
clrscr;
(*cau a*)
write('nhap 2 so:');readln(a,b);
if a>b then writeln(a,' lon hon ',b);
if a=b then writeln(a,' bang ',b);
if a<b then writeln(a,' nho thua ,b);
(*cau b*)
for i:=1 to 4 do {dua 4 so vao 1 mang}
begin
write(so thu ',i,' :');readln(t[i]);
end;
min:=t[1];
for i:=2 to 4 do
if t[i]<min then min:=t[i];
writeln('so nho nhat trong bon so:',min);
(*cau c*)
write('nhap hai so x,y:');readln(x,y);
if x>y then
begin
tam:=x;
x:=y;
y:=tam;
end;
(*cau d*)
for i:=1 to 3 do {dua 3 so vao mot mang}
begin
write(' so thu ',i,': ');readln(t1[i]);
end;

for i:=1 to 3-1 do
for j:=i+1 to 3 do
if t1[j]>t1[i] then
begin
tam:=t1[j];
t1[j]:=t1[i];
t1[i]:=tam;
end;
for i:=1 to 3 do
write(t1[i]);

readln;
end.

bai nay con vai loi sai nho

ban nen chay tung cau mot va khoa cac cau con lai bang lenh {...}

b: 

#include <bits/stdc++.h>

using namespace std;

long long a,b,t;

int main()

{

cin>>a>>b;

t=a+b;

cout<<t;

return 0;

}

Input: a,b

Output: max,min của hai số a,b

#incude <bits/stdc++.h>

using namespace std;

long long x,y;

int main()

{

cin>>x>>y;

cout<<x*x+2*y+1;

return 0;

}

Program HOC24;

var i,n: integer;

t: longint;

a: array[1..1000] of integer;

begin

write('Nhap n: '); 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];

write('Tong la; ',t);

readln

end.

1.

Program Tim_Max; 
Var A:Array[1..255] of Integer; 
i, n, Max: Integer; 
Begin 
Write('Nhap n: '); Readln(n); 
For i := 1 to n do 
Begin 
Write('Nhap phan tu A[',i,'] = '); Readln(A[i]); 
End; 
Max := A[1]; 
For i := 2 to n do if A[i]>Max then Max := A[i]; 
Write('Phan tu lon nhat la :',Max); 
Readln 
End.

2.

Uses Crt;
Type Mang = ARRAY[1..50] Of Integer;
Var A:Mang;
N,i,j,Tam:Integer;
Begin
{Nhập mảng}
Write('Nhap N='); Readln(N);
For i:=1 To N Do
Begin
Write('A[',i,']='); Readln(A[i]);
End;
{Sắp xếp}
For i:=1 To N-1 Do
For j:=i+1 To N Do
If A[i]>A[j] Then
Begin
Tam:=A[i]; A[i]:=A[j]; A[j]:=Tam;
End;
{In kết quả ra màn hình}
Writeln('Ket qua sau khi sap xep:');
For i:=1 To N Do Write(A[i]:5);
Readln;
End.

3.

Uses Crt;
Type Mang = ARRAY[1..50] Of Integer;
Var A:Mang;
N,i,x:Integer;

Function TimKiem(x, N: Integer; A:Mang):Integer;
Var i:Integer;
Begin
I:=1;
While (I <= N) and (X<>A[I]) do I:=I+1; {{{{tại sao lại phải làm như bước này, tại sao lại lấy i đi so sánh với N}}}}
If I <= N Then Timkiem:=I Else Timkiem:=0;
End;

Begin
{Nhập mảng}
Write(‘Nhap N=’); Readln(N);
For i:=1 To N Do
Begin
Write(‘A[‘,i,’]=’); Readln(A[i]);
End;
Write(‘Nhap X=’); Readln(x);
{Kết quả tìm kiếm}
If TimKiem(X,N,A)<>0 Then 
Writeln(‘Vi tri cua X trong mang la:’, TimKiem(X,N,A))
Else Writeln(‘X khong co trong mang.’);
Readln;
End.

câu 1 tham khảo cái này nhé

Uses Crt;

Type Mang = ARRAY[1..50] Of Integer;

Var A:Mang;

    N,i,Max:Integer;

Begin

    Write('Nhap N='); Readln(N);

    For i:=1 To N Do

        Begin

            Write('A[',i,']='); Readln(A[i]);

        End;

    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.