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#include <bits/stdc++.h>
using namespace std;
double a;
int main()
{
cin>>a;
cout<<fixed<<setprecision(2)<<a*a;
return 0;
}
uses crt;
var a,t,dem:integer;
begin
clrscr;
t:=0;
dem:=0;
repeat
write('Nhap a='); readln(a);
if (a mod 2=0) and (a mod 3=0) then
begin
t:=t+a;
dem:=dem+1;
end;
until a=0;
writeln('Trung binh cong cua cac so chia het cho 3 va 2 la: ',t/dem:4:2);
readln;
end.
Bài 2:
#include <bits/stdc++.h>;
using namespace std;
int main();
{
long m,n;
cout<<"Nhap m="; cin>>m;
cout<<"Nhap n="; cin>>n;
cout<<m*n-2;
return 0;
}
uses crt;
var a:array[1..200]of integer;
n,i,k,t,t1:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
write('Nhap k='); readln(k);
t:=0;
for i:=1 to n do
if a[i] mod 2<>0 then t:=t+a[i];
t1:=0;
for i:=1 to n do
if a[i] mod k=0 then t1:=t1+a[i];
writeln('Tong cac phan tu le la: ',t);
writeln('Tong cac phan tu la boi cua ',k,' la: ',t1);
readln;
end.
uses crt;
var a,n,x,y,z:integer;
kq:real;
begin
clrscr;
readln(x,y,z);
writeln((x+y+z)/3:4:2);
a:=x*y*z;
n:=3;
kq:=exp((1/n)*ln(a));
write('Can bac ',n,' cua ',a,' = ',kq:4:3);
readln
end.
1:
uses crt;
const fi='ketqua.txt';
var f1:text;
st:string;
i,d:integer;
begin
clrscr;
assign(f1,fi); rewrite(f1);
write('Nhap xau:'); readln(st);
d:=length(st);
for i:=1 to d do
if st[i]=#32 then delete(st,i,1);
writeln(f1,st);
close(f1);
end.
2:
uses crt;
var a,b,c,d:integer;
{----------chuong-trinh-con-----------------------}
function min(x,y:integer):integer;
begin
if x<y then min:=x
else min:=y;
end;
{---------------chuong-trinh-chinh--------------------}
begin
clrscr;
write('a='); readln(a);
write('b='); readln(b);
write('c='); readln(c);
write('d='); readln(d);
writeln(min(a,min(b,min(c,d))));
readln;
end.
cau 1:
uses crt;
var a:array[1..100] of integer;
n,i,min: integer;
begin
readln(n);
for i:=1 to n do
readln(a[i]);
min:=a[1];
for i:=2 to n do
if min>a[i] then min=a[i];
writeln(a[i]);
readln;
end.
cau 2:
uses crt;
g:text;
s:string;
const fo='CHUSO.TXT';
begin
assign(g,fo);
rewrite(g);
readln(s);
for i:=1 to length(s) do
if not((s[i] in ['a'..'z'])and(s[i] in ['A'..'Z])) then delete(s,i,1);
writeln(g,s);
end.
Bài 1:
uses crt;
var a:array[1..200]of integer;
i,n,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
t:=0;
for i:=1 to n do
if a[i] mod 5=0 then t:=t+a[i];
writeln('Tong cac so chia het cho 5 la: ',t);
readln;
end.
Bài 2:
uses crt;
var st:string;
d,i:integer;
begin
clrscr;
write('Nhap xau:'); readln(st);
d:=length(st);
for i:=1 to d do
if st[i]=#32 then delete(st,i,1);
writeln(st);
readln;
end.