EX 2
#include <iostream>
using namespace std;
#define parametri int x, int y, int a
void ok1(parametri) {
if ((pow(x, 2) > a) && (pow(y,2) == 4)) { a = 1; }
cout << a << "\n";
}
int sqr(int x) {
return x * x;
void ok2(parametri) {
if ((sqrt(x) > a) || (sqr(y) == 4)) { a = 1; }
cout << a << "\n";
void ok3(parametri) {
if (a == true) { a = 0; }
cout << a << "\n";
void ok4(parametri) {
if (a != true) {
a = 1;
}
else { a = 0; }
cout << a << "\n";
void ok5(parametri) {
if (5 == (5 / 5 + 4)) { a = a; }
cout << a << "\n";
}
int main() {
ok1(9, 4, 2);
ok2(9, 4, 2);
ok3(9, 4, 2);
ok4(9, 4, 2);
ok5(9, 4, 2);
system("pause");
return 0;
}
EX 5
#include <iostream>
using namespace std;
#define parametri int x, int y, int a
int a_max(int a, int b ) {
int x;
if (a > b) { x = a; }
else { x = b; };
cout << x << "\n";
return x;
}
int b_min(int a, int b) {
int x;
if (a > b) { x = b; }
else {x = a;}
cout << x << "\n";
return x;
}
int c_sum() {
int c;
c = a_max(1,3) + b_min(1,3);
cout <<"suma"<< c <<"\n" ;
return c;
}
void d_max(int a, int b) {
int x;
if ((a-b) > b) { x = a; }
else { x = b; };
cout << x << "\n";
}
void e_min(int a, int b) {
int x;
if (a+b > b) { x = b; }
else { x = a; }
cout << x << "\n";
}
void f_max(int a, int b) {
int x;
if (pow(a,2)>pow(b,3)) { x = a; }
else { x = b; };
cout << x << "\n";
}
int main() {
a_max(1, 3);
b_min(1, 3);
c_sum();
d_max(1, 3);
e_min(1, 3);
f_max(1, 3);
system("pause");
return 0;
EX 29
#include <stdio.h>
#include <iostream>
using namespace std;
int main() {
int n, rev = 0, ramas;
printf("Numarul = ");
cin >> n;
while (n != 0) {
ramas = n % 10;
rev = rev * 10 + ramas;
n /= 10;
}
printf("Numarul reversat = %d", rev);
return 0;
}
EX 22
e)
#include <iostream>
#include<math.h>
using namespace std;
int main() {
float suma = 0;
for (float k = 1; k <= 20; k++) {
for (float m = k; m <= 20; m++) {
suma += (8 + k) / m;
cout << suma;
b)
float suma=0;
for(int i=1;i<=30;i++)
for(int j=1;j<=10;j++){
suma+=sin(i*i+j*j*j*j);
cout<<"Exercitiul a) ="<<suma;
}
g)
#include <iostream>
#include<math.h>
using namespace std;
int main() {
float suma = 0;
float x;
cin >> x;
float fact = 1;
float k = 1;
for (int i = 1; i <= 30; i++) {
for (i = 1; i <= k; i++) {
fact = fact * i;
}
k++;
suma += fact / pow(x, i);
cout << suma;
return 0;
}
1 pag 52
#include <iostream>
using namespace std;
int main() {
//1 pag 52
int a[] = { 1,2,3,4,5,6,7,8,9,10 };
cout << a[3]<<"\n" << a[4] << "\n" << a[9];
cout << "\n" << a[3] + a[2] + a[8];
cout << "\n" << a[1] + 5 << "\n" << a[9]+5;
cout << "\n" << a[5] - 10 << "\n" << a[6] - 10;
return 0;
}
3 pag 52
#include <iostream>
#include <iostream>
using namespace std;
int main() {
int numere_negative = 0;
int nr_pare = 0;
int nr_nenule = 0;
int i = 0;
int nr_divizibile=0;
int nr_celputin=0;
/// ////////////////////////
/// int a[10];
int a[10];
for ( i = 0; i < 10; i++) {
cin >> a[i];
}
i = 0;
int n = 10;
for ( i ; i <n-1; i++) {
if (a[i] < 0) { numere_negative++; }
}
cout << numere_negative;
i = 0;
//----------------------------------------
for ( i; i <n; i++)
if (a[i] % 2 == 0) { nr_pare++; }
}
cout << "\n" << nr_pare;
i = 0;
//---------------------------------------------
for (i; i < n; i++) {
if (a[i] != 0) { nr_nenule++; }
}
cout<<"\n"<<nr_nenule;
i = 0;
//----------------------------------
for (i; i < n; i++) {
if (a[i] % 3 == 0 || a[i] % 5 == 0) { nr_divizibile++; }
}
i = 0;
cout << "\n" << nr_divizibile;
//------------------------------------------------
for (i; i < n; i++) {
if (a[i] %7 == 0 || a[i] % 9 == 0 || a[i] % 11 == 0) { nr_celputin++; }
}
i = 0;
cout << "\n" << nr_celputin;
return 0;
}
24 pag 24
#include <stdio.h>
#include <iostream>
using namespace std;
int main() {
int n;
int suma = 1;
cin >> n;
int n1 = n;
for (int i = 1; i <= n; i++) {
suma = suma * n1;
n1--;
cout << suma;
return 0;
}
23 pag 24
#include <stdio.h>
#include <iostream>
using namespace std;
int main() {
char c;
int lowercase_vocala, uppercase_vocala;
printf("Enter an alphabet: ");
cin >> c;
lowercase_vocala = (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
uppercase_vocala = (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');
if (lowercase_vocala || uppercase_vocala)
cout << c << " = " << "Este vocala";
else
cout << c << " = " << "Este consoana";
return 0;
}
2 pag 52
#include <stdio.h>
#include <iostream>
using namespace std;
int main() {
int a[]={1,2,3,4,5};
int suma;
int suma1=1;
for(int i=0;i<a[i];i++){
suma=suma+a[i];
suma1=suma1*a[i];
}
cout<<"\n"<<suma;
cout<<"\n"<<suma1;
return 0;
}
9 pag 22
#include <iostream>
using namespace std;
int main(){
int m ,n;
cin>>m>>n;
if((m-n)<0){cout<<"consecutive";}
else{cout<<"nu sunt consecutive";}
return 0;
}
22 unknown page
#include <iostream>
#include<math.h>
using namespace std;
int main() {
float suma = 0;
float x;
cin >> x;
float fact = 1;
float k = 1;
int j;
for (int i = 1; i <= 30; i++) {
for (j = 1; j <= k; j++) {
fact = fact * j;
}
k++;
suma += fact / pow(x, i);
cout << suma;
return 0;
}
4 pag 32
#include <iostream>
using namespace std;
int main() {
int n, i;
unsigned long long fact = 1;
cin >> n;
if (n < 0)
cout << "Numarul este negativ";
else {
for (i = 1; i <= n; ++i) {
fact *= i;
}
cout << "Factorialul numarului dat = " << fact;
}
return 0;
}
Numar perfect uknown page exercise
#include <iostream>
#include <stdio.h>
using namespace std;
int main()
int n;
cin >> n;
int suma = 0;
for (int i = 1; i <= n / 2; i++)
if (n % i == 0)
suma += i;
if (suma == n)
cout << "N este perfect";
return 0;
