#include <bits/stdc++.h>

using namespace std;

double a,b,c;

bool kt;

int main()

{

cin>>a>>b>>c;

if (a+b>c && b+c>a && a+c>b)

{

kt=false;

if (a==b && b!=c && a!=c) kt=true;

if (b==c && b!=a && c!=a) kt=true;

if (a==c && a!=b && c!=b) kt=true;

if (kt==true) cout<<"YES";

else cout<<"NO";

}

else cout<<"NO";

return 0;

}

Program ba_canh_cua_tam_giac;

uses crt;

var a,b,c: real;

BEGIN

Write('nhap do dai canh a'); Readln(a);

Write('nhap do dai canh b'); Readln(b);

Write('nhap do dai canh c'); Readln(c);

If (a<(b+c)) and (b<(c+a)) and (c<(b+a)) then write('do la do dai cua mot tam giac')

else write('do khong la do dai cua mot tam giac');

Readln;

END.

Thanks

bạn ơi viết chương trình bằng chữ hay là ở trong pascal z bạn

Var a,b,c: integer;
begin writeln('nhap ba so duong: ');Readln(a,b,c);
if (a+b>c) and (a+c>b) and (b+c>a) then writeln('3 so nay co the la do dai 3 canh cua 1 tam giac')
else writeln('3 so nay khong the la do dai 3 canh cua 1 tam giac');
End.

#include <bits/stdc++.h>

using namespace std;

double a,b,c,h,p,s;

int main()

{

cin>>a>>b>>c;

p=(a+b+c)/2;

s=sqrt(p*(p-a)*(p-b)*(p-c));

if (s>50) cout<<"Dien tich tam giac lon hon";

else cout<<"Dien tich tam giac nho hon";

return 0;

}

a = float(input("Nhap a : "))
b = float(input("Nhap b : "))
c = float(input("Nhap c : "))
if a+b>c and a+c>b and b+c>a:
    if a==b or a==c or b==c:
        if a==c==b:
            print("Day la ba canh cua tam giac deu")
        else:
            print("Day la ba canh cua tam giac can")
    elif (a**2)+(b**2)==c**2 or (a**2)+(c**2)==b**2 or (c**2)+(b**2)==a**2:
        print("Day la ba canh cua tam giac vuong")
    else:
        pass
else:
    print("Day khong phai ba canh cua tam giac")

var a,b,c:integer;

begin

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

write('b = ');readln(b);

write('c = ');readln(c);

if (a+b>c) and (a+c>b) and (b+c>a) then

write('ba so do co the la do dai ba canh cua tam giac')

else write('ba so do khong the la do dai ba canh cua tam giac');

readln

end.