function max(a, b: integer): integer; begin if a > b then max := a else max := b; end;
begin readln(a, b); writeln(max(a, 2 * b) * max(2 * a - b, b)); end.
5) const n = 10;
var a: array[1..n] of integer; i, s: integer;
begin for i := 1 to n do begin readln(a[i]); if i mod 2 = 0 then s := s + a[i]; end; writeln(s); end.
6) const handsfree = false;
var a: array[1..100, 1..100] of real; product: real; i, j, m, n: integer;
begin {ввод матрицы} if handsfree then begin n := random(20) + 2; m := random(20) + 2; end else begin write('n, m ='); readln(n, m); end;
writeln('Данные матрицы:'); for i := 1 to m do begin for j := 1 to n do if handsfree then begin a[i, j] := random(100) - 50; write(a[i, j]:4, ' ') end else read(a[i, j]); writeln; end;
product := 1; for i := 1 to m do for j := 1 to n do if a[i, j] > 0 then product := product * a[i, j]; writeln('product = ', product); end.
var
a, b: integer;
function max(a, b: integer): integer;
begin
if a > b then max := a else max := b;
end;
begin
readln(a, b);
writeln(max(a, 2 * b) * max(2 * a - b, b));
end.
5)
const
n = 10;
var
a: array[1..n] of integer;
i, s: integer;
begin
for i := 1 to n do
begin
readln(a[i]);
if i mod 2 = 0 then s := s + a[i];
end;
writeln(s);
end.
6)
const
handsfree = false;
var
a: array[1..100, 1..100] of real;
product: real;
i, j, m, n: integer;
begin
{ввод матрицы}
if handsfree then begin
n := random(20) + 2;
m := random(20) + 2;
end
else begin
write('n, m =');
readln(n, m);
end;
writeln('Данные матрицы:');
for i := 1 to m do
begin
for j := 1 to n do
if handsfree then begin
a[i, j] := random(100) - 50;
write(a[i, j]:4, ' ')
end
else
read(a[i, j]);
writeln;
end;
product := 1;
for i := 1 to m do
for j := 1 to n do
if a[i, j] > 0 then
product := product * a[i, j];
writeln('product = ', product);
end.
#include <iostream>
#include <cmath>
using namespace std;
int main(){
int x1,x2,x3,y1,y2,y3=0;
double s,p,a,b,c,pp=0;
cin>>x1>>y1>>x2>>y2>>x3>>y3;
a=sqrt(pow(float(x2-x1),2)+pow(float(y2-y1),2));
b=sqrt(pow(float(x3-x2),2)+pow(float(y3-y2),2));
c=sqrt(pow(float(x3-x1),2)+pow(float(y3-y1),2));
p=a+b+c;
pp=p/2;
s=sqrt(pp*(pp-a)*(pp-b)*(pp-c));
cout<<"S="<<s<<endl;
cout<<"P="<<p;
cin.get();
cin.get();
return 0;
}
Пример ввода:
1
1
1
5
6
7
Пример вывода:
S=10
P=17.1954