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#include <bits/stdc++.h>
using namespace std;
double a,b,c;
int main()
{
cin>>a>>b>>c;
if ((a>0) and (b>0) and (c>0) and (a+b>c) and (a+c>b) and (b+c>a)) cout<<"Day la ba canh trong mot tam giac";
else cout<<"Day khong la ba canh trong mot tam giac";
return 0;
}
uses crt;
var a,b,c:real;
begin
clrscr;
readln(a,b,c);
if (a>0) and (b>0) and (c>0) and (a+b>c) and (a+c>b) and (b+c>a) then
begin
if (a=b) and (b=c) then write('Day la tam giac deu')
else writeln('Day khong la tam giac deu');
end
else writeln('Day khong la ba canh trong mot tam giac');
readln;
end.
uses crt;
var a,b,c,p,s:real;
begin
clrscr;
readln(a,b,c);
if (a>0) and (b>0) and (c>0) and (a+b>c) and (a+c>b) and (b+c>a) then
begin
p:=(a+b+c)/2;
s:=sqrt(p*(p-a)*(p-b)*(p-c));
writeln('Chu vi la: ',2*p:4:2);
writeln('Dien tich la: ',s:4:2);
end
else writeln('A B C khong phai la chieu dai ba canh cua mot tam giac');
readln;
end.
uses crt;
var a,b,c:integer;
begin
clrscr;
readln(a,b,c);
if (a+b>c) and (a+c>b) and (b+c>a) then writeln('Phai')
else writeln('Khong phai');
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long a[1000],i,n,j;
bool kt;
int main()
{
freopen("nguyento.inp","r",stdin);
freopen("nguyento.out","w",stdout);
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
for (i=1; i<=n; i++)
if (a[i]>1)
{
kt=true;
for (j=2; j*j<=a[i]; j++)
if (a[i]%j==0) kt=false;
if (kt==true) cout<<a[i]<<" ";
}
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int a,b,c;
int main(){
cin>>a>>b>>c;
if((a+b)>c||(a+c)>b||(b+c)>a) cout<<"Yes";
else cout<<"No";
}
#include <bits/stdc++.h>
using namespace std;
double a,b,c;
int main()
{
freopen("input.inp","r",stdin);
freopen("output.inp","w",stdout);
cin>>a>>b>>c;
if (a+b>c && a+c>b && b+c>a && a>0 && b>0 && c>0) cout<<"tao thanh tam giac";
else cout<<"khong tao thanh tam giac";
return 0;
}