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Deklaratsiya <!DOCTYPE html>ushbu hujjat HTML5 hujjati ekanligini belgilaydi
Element <html>HTML sahifasining ildiz elementidir
Element <head>HTML sahifasi haqidagi meta-ma'lumotni o'z ichiga oladi
Element <title>HTML sahifasi uchun sarlavhani belgilaydi (bu brauzerning sarlavha satrida yoki sahifa yorlig'ida ko'rsatilgan)
Element <body>hujjatning tanasini belgilaydi va sarlavhalar, paragraflar, rasmlar, giperhavolalar, jadvallar, ro'yxatlar va boshqalar kabi barcha ko'rinadigan tarkiblar uchun konteynerdir.
Element <h1>katta sarlavhani belgilaydi
Element <p>paragrafni belgilaydi
HTML elementi nima?
HTML elementi boshlang'ich teg, ba'zi kontent va tugatish tegi bilan belgilanadi:

< tagname > Kontent shu yerda... < /tagname >
HTML elementi boshlang'ich tegdan tortib to tugatish tegigacha bo'lgan hamma narsadir:

< h1 > Mening birinchi sarlavham < /h1 >
< p > Mening birinchi xatboshim. </p>
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Kompyuter injineringi 1-kurs 1-Tajriba ishi 1-topshiriq javoblari๐Ÿ‘‡
1.1#include <iostream>
using namespace std;

int main() {
double x, V;
cin >> x;
V = x * x * x;
cout << V;
}
1.2 #include <iostream>
using namespace std;

int main() {
double r1, r2, r3;
cin >> r1 >> r2 >> r3;
double S1 = 3.14 * r1 * r1;
double S2 = 3.14 * r2 * r2;
double S3 = 3.14 * r3 * r3;
cout << S1 << " " << S2 << " " << S3;
}
3. Teng yonli uchburchak peremetri P berilgan, uchburchak tomoni va yuzini toping
#include <iostream>
#include <cmath>
using namespace std;

int main() {
double P, a, S;
cin >> P;
a = P / 3;
S = sqrt(3) / 4 * a * a;
cout << a << " " << S;
}
4. Tekislikda uchta nuqta A(x1,y1), B(x2,y2), C(x3,y3) berilgan AB va AC nuqtalar orasidagi masofani toping.
#include <iostream>
#include <cmath>
using namespace std;

int main() {
double x1,y1,x2,y2,x3,y3;
cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;
double AB = sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1));
double AC = sqrt((x3-x1)*(x3-x1) + (y3-y1)*(y3-y1));
cout << AB << " " << AC;
}
5. Toโ€™gโ€™ri burchakli uchburchak katetlari a va b berilgan, uchburchak gipotenuzasini, yuzini va burchaklari sinusini toping.
#include <iostream>
#include <cmath>
using namespace std;

int main() {
double a, b;
cin >> a >> b;
double c = sqrt(a*a + b*b);
double S = a*b/2;
double sinA = a / c;
double sinB = b / c;
cout << c << " " << S << " " << sinA << " " << sinB;
}
6. Ikki xonali son berilgan raqamlar yigโ€™indisini toping.
#include <iostream>
using namespace std;

int main() {
int n;
cin >> n;
int s = (n / 10) + (n % 10);
cout << s;
}
7. Uzunlik a metr b detsimetr va c santimetrda berilgan ularni m, dm va sm da ifodalng. (M: 3m 50dm 20sm โ€“ 8,2m, 82 dm, 820 sm)
#include <iostream>
using namespace std;

int main() {
int a, b, c;
cin >> a >> b >> c;

int t = a*100 + b*10 + c;

double m = t / 100.0;
int dm = t / 10;
int sm = t;

cout << m << " " << dm << " " << sm;
}
8. Uch xonali a son berilgan bu sonning yuzlar, oโ€™nlar va birlar xonasidagi raqamlarini alohida alohida yozing.
#include <iostream>
using namespace std;

int main() {
int a;
cin >> a;

int y = a / 100;
int o = (a % 100) / 10;
int b = a % 10;

cout << y<< " " << o<< " " << b;

return 0;
}