Program Alexandra_1;
uses crt;
const n=5;
var
a:array[1..n] of integer;
i, sum: integer;
begin
sum:=0;
for i:=1 to n do
begin
write('Введите ',i,'-e число ');
readln(a[i]);
if a[i]>0 then sum:=sum+a[i];
end;
writeln('Сумма положительных элементов ',sum);
end.
Program Alexandra_2;
uses crt;
const n=7;
var
a:array[1..n] of integer;
i, num: integer;
begin
num:=0;
for i:=1 to n do
begin
write('Введите ',i,'-e число ');
readln(a[i]);
if (a[i]>0) AND (a[i] mod 2 = 0) then num:=num+1;
end;
writeln('Количество четных положительных элементов ',num);
end.
Program Alexandra_3;
uses crt;
const n=6;
var
a:array[1..n] of integer;
i, tum: integer;
begin
tum:=1;
for i:=1 to n do
begin
write('Введите ',i,'-e число ');
readln(a[i]);
if a[i]>0 then tum:=tum*a[i];
end;
writeln('Произведение положительных элементов ',tum);
end.
отрезок
x1, y1,x2,y2 = map(int, input().split())
def nod(a, b):
--if b > 0:
return nod(b, a%b)
--else:
return a
a = abs(x1 - x2)
b = abs(y1 - y2)
d = nod(a, b)
print(d * (a//d + b//d - 1))
уравнение
def gcd(a, b):
while a != 0 and b != 0:
if a < b:
b = b % a
else:
a = a % b
return a + b
def qwer(a, b):
x = 1
x1 = 0
y = 0
y1 = 1
while b != 0:
q = a // b
r = a % b
x2 = x - q * x1
y2 = y - q * y1
a, b = b, r
x, x1 = x1, x2
y, y1 = y1, y2
return str(a), str(x), str(y)
a, b, c = list(map(int, input().split()))
x, y = 0, 0
gcds = 0
if c % gcd(a, b) != 0:
print('-1')
else:
gcds, x, y = map(int, qwer(a, b))
x *= c // gcds
y *= c // gcds
q = x // (b // gcds)
x %= b // gcds
y += a // gcds * q
print(x, y)
