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Program HOC24;
var a,b,c,d,max: integer;
t: longint;
begin
write('Nhap a; b; c; d: '); readln(a,b,c,d);
t:=a+b+c+d;
writeln('Tong 4 so tren la: ',t);
max:=a;
if max<b then max:=b;
if max<c then max:=c;
if max<d then max:=d;
write('So lon nhat cua chung la: ',max);
readln
end.
*Cách khác:
uses crt;
var a,b,c,d,max:integer;
begin
clrscr;
write('Nhap a='); readln(a);
write('Nhap b='); readln(b);
write('Nhap c='); readln(c);
write('Nhap d='); readln(d);
writeln('Tong cua 4 so la: ',a+b+c+d);
max:=a;
if max<b then max:=b;
if max<c then max:=c;
if max<d then max:=d;
writeln('Gia tri lon nhat la: ',max);
readln;
end.
uses crt;
var a,b:real;
begin
clrscr;
readln(a,b);
if a>b then writeln(a+b:4:2)
else writeln(a*b:4:2);
readln;
end.
uses crt;
var a,b:longint;
begin
clrscr;
write('a=');readln(a);
write('b=');readln(b);
if(b>a)then writeln(a*b) else writeln(a+b);
readln;
end.
2:
#include <bits/stdc++.h>
using namespace std;
double a,b,c,p,s;
int main()
{
cin>>a>>b>>c;
p=(a+b+c)/2;
s=sqrt(p*(p-a)*(p-b)*(p-c));
cout<<fixed<<setprecision(2)<<s;
return 0;
}
Câu 1:
uses crt;
var a:array[1..100]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
t:=t+a[i];
writeln('Tong cac so trong mang la: ',t);
readln;
end.
Câu 2:
uses crt;
var a:array[1..100]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 2=0 then t:=t+a[i];
writeln('Tong cac so chan la: ',t);
readln;
end.
uses crt;
var a:array[1..100]of integer;
n,i,t,nn,kt:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
t:=1;
for i:=1 to n do
if a[i] mod 3=0 then t:=t*a[i];
writeln(t);
kt:=0;
nn:=32567;
for i:=1 to n do
if a[i] mod 3=0 then
begin
if nn>a[i] then nn:=a[i];
kt:=1;
end;
if kt=0 then writeln('Khong co so chia het cho 3')
else writeln('So nho nhat chia het cho 3 la: ',nn);
for i:=1 to n do
if nn=a[i] then write(i:4);
writeln;
for i:=n downto 1 do
write(a[i]:4);
readln;
end.
const fo='int.txt';
fo='out.txt';
var f1,f2:text;
m,n:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,m);
readln(f1,n);
writeln(f2,m+n);
close(f1);
close(f2);
end.
Bài 2:
uses crt;
var x,i,n,dem:integer;
begin
clrscr;
readln(n);
dem:=0;
for i:=1 to n do
begin
readln(x);
if x mod 2=0 then inc(dem);
end;
writeln(dem);
readln;
end.
uses crt;
const fi='max.out';
var f1:text;
a,b,c,max:integer;
begin
clrscr;
assign(f1,fi); rewrite(f1);
write('a='); readln(a);
write('b='); readln(b);
write('c='); readln(c);
max:=a;
if max<b then max:=b;
if max<c then max:=c;
writeln(f1,max);
close(f1);
readln;
end.
uses crt;
var a,b,c:integer;
begin
clrscr;
readln(a,b,c);
writeln(a+b);
readln;
end.