Sumaprodus diferenta cat
// ConsoleApplication5.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, b, s;
float p;
cout << "introduceti valuarea lui a\n" ;
cin >> a;
cout << "ibtroduceti valuarea lui b";
cin >> b;
s = a + b;
cout << " suma nr este " << s << endl;
s = a - b;
cout << " diferenta este " << s << endl;
s = a * b;
cout << " produsul nr este " << s << endl;
p = a / b;
cout << " catul nr este " << p;
}
triunghi
int lungime, inaltime,p;
cout << "lungimea este: ";
cin >> lungime;
cout << "inaltimea este: ";
cin >> inaltime;
cout << "lungimea laturei este " << lungime <<endl;
cout << "inaltimea triunghiului este " << inaltime<< endl;
p = 3 * lungime;
cout << "perimetrul triunghiului este " << p;
modulo
// ConsoleApplication10.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int x, m;
cout << "x=";
cin >> x;
if (x < 0)
{
m = -x;
}
else
{
m = x;
}
cout << "modulul este = "<<m;
}
Par impar
// ConsoleApplication10.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
// ConsoleApplication36.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int x;
cout << "x= ";
cin >> x;
if (x % 2==0)
{
cout << "este numar par " << x;
}
else
{
cout << "este numar impar " << x;
}
return 0 ;
Ec grad 2
float a, b, c, x1, x2, discriminant, realPart, imaginaryPart;
cout << "enter namber a ,b,c ";
cin >> a >> b >> c;
discriminant = b * b - 4 * a*c;
if (discriminant > 0) {
x1 = (-b + sqrt(discriminant)) / (2 * a);
x2 = (-b - sqrt(discriminant)) / (2 * a);
cout << "Roots are real and different." << endl;
cout << "x1 = " << x1 << endl;
cout << "x2 = " << x2 << endl;
}
else if (discriminant == 0) {
cout << "Roots are real and same." << endl;
x1 = (-b + sqrt(discriminant)) / (2 * a);
cout << "x1 = x2 =" << x1 << endl;
}
else {
realPart = -b / (2 * a);
imaginaryPart = sqrt(-discriminant) / (2 * a);
cout << "Roots are complex and different." << endl;
cout << "x1 = " << realPart << "+" << imaginaryPart << "i" << endl;
cout << "x2 = " << realPart << "-" << imaginaryPart << "i" << endl;
}
return 0;
ec grad 2 personalizata
float a, b, c, x1, x2, d, realPart, imaginaryPart;
cout << "enter namber a ,b,c ";
cin >> a >> b >> c;
d = b * b - 4 * a*c;
cout << "delta este " <<d<< endl;
if (d > 0) {
x1 = (-b + sqrt(d)) / (2 * a);
x2 = (-b - sqrt(d)) / (2 * a);
cout << "solutiile ecuatiilor sunt." << endl;
cout << "x1 = " << x1 << endl;
cout << "x2 = " << x2 << endl;
}
if(d==0)
{
cout << "Roots are real and same." << endl;
x1 = (-b + sqrt(d)) / (2 * a);
cout << "x1 = x2 =" << x1 << endl;
}
if(d<0)
{
cout << "eruare suma este mai mica decat 0";
}
return 0;
perimetru si arie triunghi
// ConsoleApplication17.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, b, c;
double p, Aria;
cout << "a= "; cin >> a;
cout << "b= "; cin >> b;
cout << "c= "; cin >> c;
p = (a + b + c) / 2.; //p reprezinta semiperimetrul
Aria = sqrt(p*(p - a)*(p - b)*(p - c));
cout << "perimetrul este" << p << endl;
cout << "Aria este: " << Aria;
}
Numara numere
// ConsoleApplication21.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int numar = 0;
while (numar<2000)
{
numar=numar+1;
cout<< numar<<endl;
};
return 0;;
}
//inmultire;
// ConsoleApplication21.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int n, x, i;
cin >> n >> x;
for (i = 1; i <= n; i++)
x = x * x;
cout << x;
return 0;
}
Cu while
// ConsoleApplication24.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
// ConsoleApplication21.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int n, x, i;
cin >> n >> x;
i = 1;
while (i <= n)
{
x = x * x;
i++;
}
cout << x;
return 0;
}
// cate numere pare se afla intr-un anumit interval
// ConsoleApplication25.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, b, nr, i;
cin >> a >> b;
nr = 0;
for (i = a; i <= b; i++)
if (i % 2 == 0)
nr++;
cout << "nr" << nr;
return 0;
}
Aceeasi prob da cu do wile
// ConsoleApplication25.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, b, nr, i;
cin >> a >> b;
nr = 0;
i = a;
if(i<=b)
do
{
if (i % 2 == 0)
nr++;
i++;
} while (i <= b);
cout << "nr" << nr;
return 0;
}
Alta met de rezolvare
// ConsoleApplication26.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, b, nr, i;
cin >> a >> b;
nr = 0;
if (a <= b)
{
nr = (b - a + 1) / 2;
if (nr & 2 == 0 && b % 2 == 0)
{
nr++;
}
cout<<nr;
}
// interva ntre numere
// ConsoleApplication36.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, b, nr, i;
cin >> a >> b;
nr = 0;
for (i = a; i <= b; i++)
//if (i % 1 == 0)
nr++;
cout << "nr" << nr;
return 0;
// puterea
// ConsoleApplication39.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int n, m;
long long p=1;
cin >> n >> m;
for (int i = 1; i <= m; i++)
p = p * n;
cout << p;
return 0;
// cod asci
// ConsoleApplication27.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int c;
for (c = 0; c <= 255; c++)
{
cout << (unsigned char)c << ' ' << c;
cout << '\t'; c++;
cout << (unsigned char)c << ' ' << c;
cout << endl;
}
return 0;
}
Max a 3 nr
// ConsoleApplication28.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, b,max,c;
cin >> a >> b>>c;
max = a;
if (max < b)
{
max = b;
}
if (max < c)
{
max = c;
}
cout << max;
return 0;
Max n nr;
// ConsoleApplication30.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
double a, max;
int n, i;
cin >> n >> max;
for (i = 1; i < n; i++)
{
cin >> a;
}
if (max < a)
{
max = a;
}
cout << max;
return 0;
}
Mai bun e asa
int a, max, n, i;
cout << "a= ";
cin >> a;
cout << "n = ";
cin >> n;
max = a;
for (i = 1; i <= n; i++)
{
cin >> a;
if (a > max)
max = a;
}
cout << max;
max pana la intalnirea cu 0
// ConsoleApplication30.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int a, max;
cout << "a = ";
cin >> a;
max = a;
while (a)
{
if (a > max)
max = a;
cin >> a;
}
cout << max;
}
Suma a n numere
// ConsoleApplication30.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int v[100];
int n, i;
cout << "n="; cin >> n;
//se citesc elementele vectorului
for (i = 0; i < n; i++)
{
cout << "v[" << i << "]=";
cin >> v[i];
}
int suma = 0;
for (i = 0; i < n; i++)
suma = suma + v[i];
cout << "Media aritmetica a elementelor este egala cu:" << (float)suma / n;
return 0;
}
Combinatie de numere
// ConsoleApplication31.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int n, a, b;
cin >> n;
for (a = 1; a < n; a++)
for (b = a; b < n; b++)
if (b%a == 0)
cout << a << b;
return 0;
}
Metoda 2 mai efficient
// ConsoleApplication31.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int n, a, m;
cin >> n;
for (a = 1; a < n; a++)
for (m = 1; a*m < n; m++)
cout << a << a * m;
return 0;
}
Divisor
// ConsoleApplication32.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int n, x,rad;
cin >> n;
rad = sqrt(n);
cout << "1 ";
for (x = 2; x <= rad; x++)
if (n%x == 0)
cout << x <<n/x;
cout << n ;
return 0;
}
Fie n un numar natural si p un numar prim. Sa.se determine eel mai mare numar natural k astfel incat p'
divide n.
// ConsoleApplication33.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
int n, p, k = 0;
cout << "n= ";
cin >> n;
cout << "p= ";
cin >> p;
for (k = 0; n % p == 0; k++, n /= p)
cout << "k= " << k << endl;
return 0;
}
Termen Fibonacci
// ConsoleApplication33.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int fibonacci(int n)
{
if ((n == 1) || (n == 0))
{
return(n);
}
else
{
return(fibonacci(n - 1) + fibonacci(n - 2));
}
}
int main()
{
int n, i = 0;
cout << "Input the number of terms for Fibonacci Series:";
cin >> n;
cout << "\nFibonacci Series is as follows\n";
while (i < n)
{
cout << " " << fibonacci(i);
i++;
}
return 0;
}
vocale
// ConsoleApplication34.cpp : This file contains the 'main' function. Program execution
begins and ends there.
//
#include "pch.h"
#include <iostream>
using namespace std;
int main()
{
char a[51], vocale[] = "aeiou";
cin.get(a, 50);
int i, nrVocale = 0;
for (i = 0; i < strlen(a); i++) {
if (strchr(vocale, a[i]))
nrVocale++;
cout << "Numarul de vocale din textul citit este: " << nrVocale << '\n';
return 0;
