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Uses crt;
Var a,b: real;
Begin
Clrscr;
Writeln('Nhap a,b');
Realn(a,b);
If (a>0) and (b>0) then writeln('Tich cua a,b la:', a*b)
else writeln('Yeu cau nhap lai');
Readln;
End.
uses crt;
var a,b:integer;
begin
clrscr;
repeat
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
until (a>0) and (b>0);
if a>b then writeln(a,' la so lon hon')
else if a<b then writeln(b,' la so lon hon')
else writeln('Hai so bang nhau');
readln;
end.
2:
#include <bits/stdc++.h>
using namespace std;
double a,b;
int main()
{
cin>>a>>b;
cout<<fixed<<setpricision(2)<<1/(a+b)<<endl;
return 0;
}
uses crt;
var a:array[1..100]of integer;
i,n,dem1,dem2,t1,t2,sa,sd,vt1,vt2:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
dem1:=0;
t1:=0;
dem2:=0;
t2:=0;
for i:=1 to n do
begin
if a[i]>0 then begin inc(dem1); t1:=t1+a[i]; end;
if a[i]<0 then begin inc(dem2); t2:=t2+a[i]; end;
end;
writeln(dem1);
writeln(dem2);
writeln(t1);
writeln(t2);
for i:=1 to n do
if a[i]>0 then
begin
sd:=a[i];
vt1:=i;
break;
end;
if (dem1=0) then writeln('Khong co so duong trong day')
else writeln('So duong dau tien la: ',sd,' vi tri la: ',vt1);
for i:=1 to n do
if a[i]<0 then
begin
sa:=a[i];
vt2:=i;
break;
end;
if (dem2=0) then writeln('Khong co so am trong day')
else writeln('So am dau tien la: ',sa,' vi tri la: ',vt2);
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.
#include <iostream>
using namespace std;
int main() {
int x, y;
cin >> x >> y;
int temp = x;
x = y;
y = temp;
cout << "x=" << x << endl;
cout << "y=" << y << endl;
return 0;
}
uses crt;
var a:array[1..1000]of integer;
i,n,dem,t:integer;
begin
clrscr;
repeat
write('Nhap n='); readln(n);
until (0<n) and (n<=1000);
for i:=1 to n do
begin
repeat
write('A[',i,']='); readln(a[i]);
until abs(a[i])<=1000;
end;
for i:=1 to n do
write(a[i]:4);
writeln;
dem:=0;
for i:=1 to n do
if a[i]=0 then inc(dem);
writeln('So phan tu bang 0 la: ',dem);
t:=0;
for i:=1 to n do
if a[i] mod 2=0 then t:=t+a[i];
writeln('Tong cac phan tu chan la: ',t);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
long long a,b;
int main()
{
cin>>a>>b;
cout<<max(a,b);
return 0;
}
Bài 2:
uses crt;
var n,i,t:integer;
begin
clrscr;
readln(n);
t:=0;
for i:=1 to n do
if (i mod 3=0) and (i mod 5=0) then t:=t+i;
writeln(t);
readln;
end.
Var a,b,tam:longint;
Begin
Write('Nhap vao so a = ');readln(a);
Write('Nhap vao so b = ');readln(b);
If a > b then
Begin
tam:=a;
a:=b;
b:=tam;
End;
Writeln('a = ',a);
Write('b = ',b);
Readln;
End.
#include <bits/stdc++.h>
using namespace std;
#define nmax 1000007
#define ll long long
void cd(long long a, long long b)
{
if (a > b)
swap(a, b);
cout << a << ' ' << b;
}
int main()
{
cin.tie(0)->sync_with_stdio(0);
long long a, b;
cin >> a >> b;
cd(a, b);
}