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- #include <iostream>
- #include <cmath>
- using namespace std;
- //Pre: Llegeix uns valors a, b, c i d que comprenen x i y
- //Post: Escriu el nombre de solucions de l'equació x²+y²=z²
- int main() {
- double a, b, c, d;
- while (cin >> a >> b >> c >> d) {
- int count = 0;
- for (double i = a; i <= b; ++i) {
- for (double j = c; j <= d; ++j) {
- double sol = (i*i) + (j*j);
- sol = sqrt(sol);
- double k = int(sol);
- sol = sol - k;
- if (sol == 0) ++count;
- }
- }
- cout << count << endl;
- }
- }
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