1.
using System;
public class Test
{
public static void Main()
{
int n;
double x, s=0;
Console.Write("n = ");
n = int.Parse(Console.ReadLine());
Console.Write("x = ");
x = double.Parse(Console.ReadLine());
for (int i=1; i <= n; i++) s = x*x/(2*i);
Console.WriteLine("s = {0}", s);
Console.ReadKey();
}
}
2.
using System;
public class Test
{
public static void Main()
{
int n, i=0;
double x, s=0;
Console.Write("n = ");
n = int.Parse(Console.ReadLine());
Console.Write("x = ");
x = double.Parse(Console.ReadLine());
while (i<n){
i++;
s = x*x/(2*i);
}
Console.WriteLine("s = {0}", s);
Console.ReadKey();
}
}
3.
using System;
public class Test
{
public static void Main()
{
int n, i=0;
double x, s=0;
Console.Write("n = ");
n = int.Parse(Console.ReadLine());
Console.Write("x = ");
x = double.Parse(Console.ReadLine());
do {
i++;
s = x*x/(2*i);
}
while (i<n);
Console.WriteLine("s = {0}", s);
Console.ReadKey();
}
}
Пример:
n = 5
x = 1.2
s = 0.144
A)
#include<iostream>
using namespace std;
int main()
{
int n,k;
k=0;
cin>>n;
while(n!=0)
{
if(n%3==0)
k=k+1;
cin>>n;
}
cout<<k;
return 0;
}
Б)
#include<iostream>
using namespace std;
int main()
{
int n,k;
k=0;
cin>>n;
while(n!=0)
{
if(n<0)
n=(-1)*n;
if(n%10==3 && n>9 && n<100)
k=k+1;
cin>>n;
}
cout<<k;
return 0;
}
Ответ: это типо должно быть так
Объяснение:
13533=1о0000*1+10000*3+100*5+10*3+3
1)
var
i:integer;
begin
randomize;
i:=random(11);
writeln('vipalo chislo: ',i)
;if (i = 7) then writeln('POBEDA!') else writeln('Pobrobyite eshe!');
<span>end.
2)
var
i_1,i_2,i_3:integer;
begin
randomize;
i_1:=random(11);
i_2:=random(11);
i_3:=random(11);
writeln('vipalo chislа: ',i_1,' ',i_2,' ',i_3);
if (i_1 = i_2)and(i_2 = i_3) then writeln('Winer!') else writeln('Sorry,try again!')
<span>end.
</span>3) </span>var<span> i, k, z: integer;
begin
randomize;
k := 0;
for i := 1 to 10 do
begin
z := random(101);
write(' ', z);
if odd(z) then k := k + 1;
end;
writeln;
writeln('Kolichestvo chetnysh: ', k);
</span>end.