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uses crt;
var a,b,c,nn:integer;
begin
clrscr;
readln(a,b,c);
nn:=a;
if nn>b then nn:=b;
if nn>c then nn:=c;
writeln(nn);
readln;
end.



#include <bits/stdc++.h>
using namespace std;
long long a[10000],i,n;
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
for (i=1; i<=n; i++) cout<<a[i]<<" ";
cout<<endl;
t=0;
for (i=1; i<=n; i++) if (a[i]%2==0) t+=a[i];
cout<<"Tong cac so chan la: "<<t<<endl;
sort(a+1,a+n+1);
cout<<"Day so giam dan la: ";
for (i=n; i>=1; i--) cout<<a[i]<<" ";
return 0;
}

#include <bits/stdc++.h>
using namespace std;
long long x,n,i,ln;
int main()
{
freopen("songuyen.int","r",stdin);
freopen("songuyen.out","w",stdout);
cin>>n;
ln=LLONG_MIN;
for (i=1; i<=n; i++)
{
cin>>x;
ln=max(ln,x);
}
cout<<ln;
return 0;
}


Uses crt;
Var i,n,k,tong:integer;
tb:real;
a:array[1..1000] of integer;
f1,f2:text;
Begin
clrscr;
Assign(f1,'SONGUYEN.inp');
Assign(f2,'SONGUYEN.out');
Reset(f1);Readln(f1,n);
For i:= 1 to n do read(f1,a[i]);
close(f1);
k:=0;tong:=0;
For i:= 1 to n do If (a[i]<0) and (Abs(a[i]) mod 2 = 1) then
Begin
inc(k);
tong:=tong+a[i];
End;
tb:=tong/n;
Rewrite(f2);
writeln(f2,tb:0:2);
Writeln(f2,k);
close(f2);
readln;
End.
Câu 2:
const fi='xauhoa.inp';
fo='xauhoa.out';
var f1,f2:text;
st,s1:string;
d,i:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,st);
d:=length(st);
s1:='';
for i:=1 to d do
if st[i] in ['A'..'Z'] then s1:=s1+st[i];
writeln(f2,s1);
writeln(f2,length(s1));
close(f1);
close(f2);
end.
đâu