Первое задание:
1) 3
2) 6
3) 5
Второе задание:
1) 1
2) 3
Третие:
//Язык программирования java
package com.niksonbinsk;
import java.util.ArrayList;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
int space_left = 0;
int count = 0;
Scanner s = new Scanner(System.in);
ArrayList<Integer> str = new ArrayList<>();
while(space_left != 30){
System.out.println("Enter next num:");
str.add(s.nextInt());
space_left++;
}
for(int i =0;i<30;i++){
if(str.get(i) % 2 == 0){
count++;
}
}
System.out.println(count);
}
}
Объяснение:
const
W = 600;
H = 600;
function F(x: real): real;
begin
F := sqr(x);
end;
var
x0, y0, x, y, xLeft, yLeft, xRight, yRight: integer;
a, b, fmin, fmax, x1, y1, mx, my: real;
begin
window.Init(0, 0, 800, 500, clwhite);
window.IsFixedSize := true;
xRight := 590;
yRight := 590;
a := -15;
b := 6;
fmin := -10;
fmax := 20;
mx := (xRight - xLeft) / (b - a);
my := (yRight - yLeft) / (fmax - fmin);
x0 := 380;
y0 := 490;
x1 := a;
while x1 <= b do
begin
y1 := F(x1);
x := x0 + round(x1 * mx);
y := y0 - round(y1 * my);
if (y >= 10) and (y <= 590) then SetPixel(x, y, clblack);
x1 := x1 + 0.001 ;
end;
end.