Using namespace std; int main {

#include

#include

using namespace std;

int main () {

float y, x;

cin>>x;

if(x<-2){

y=x*tan(x)+sqrt(log(abs(x-2)));

} else if(x>=-2 && x<=2){

y=x*(x*x+3);

} else{

y=(x-2)*sin(M_PI*x/2);

}

cout<<"y="<

}

4-jadval

#include

using namespace std;

class gfg

{

public : double sum(int n)

{

double i, s = 0.0;

for (i = 1; i <= n; i++)

s = s + 1/i;

return s;

}

};

int main()

{

gfg g;

int n;

cin>>n;

cout << "\nSum is " << g.sum(n);

return 0;

}

5.

#include

#include

using namespace std;

struct kompyuter {

string markasi;

string firmasi;

int xotirasi ;

int narxi;

};

void search(kompyuter t[], int n, string firma){

int k=0;

for (int i = 0; i < n; i++) {

if (t[i].firmasi == firma){

k=1;

cout< }

}

if(k==0){

cout<

}

}

void show(kompyuter t[], int n){

for (int i=0; i

cout<

}

}

void input(kompyuter t[], int n){

for (int i=0; i

cout<

cin>>t[i].markasi;

cout<

cin>>t[i].firmasi;

cout<

cin>>t[i].xotirasi;

cout<

cin>>t[i].narxi;

cout<

}

}

void sort(kompyuter t[], int n){

for (int i=0; i

{

for (int j=i+1; j

{

if(t[i].narxi>t[j].narxi)

{

struct kompyuter temp=t[i];

t[i]=t[j];

t[j]=temp;

}

}}}

int main () {

int n;

cout<<"notebooklar sonini kiriting: ";

cin>>n;

kompyuter t[n];

input(t, n);

cout<<"\nmarkasi | firmasi | xotirasi | narxi "<

sort(t, n);

show(t, n);

string firma;

cout<<"\n\nqidirilayotgan firma nomini kiriting: ";

cin>>firma;

search(t, n, firma);

return 0;

}