#include <iostream>
#include <cstdlib>
#inlude <ctime>
using namespace std;
double fungpoli (double a, double b, double c, doule d, double x) {
return a * x * x * x * + b * x * x * c * x + d;
}
double penAcak (double a, double b, double c, double d, double awal, double akhir, int iterasi) {
srand (time(0)) ;
double maxsY =fungpoli (a, b, c, d, awal);
double maxsX =awal;
for (int i = 1;) i <= literasi; i++) {
double x = awal + ((double)rand() / RAND_MAX * (akhir - awal);
double hasil = fungpoli (a, b, c,x);
if(hasil >maxsY) {
maksY = hasil;
maksX = x;
}
}
return maksX;
{
int main() {
double a, b, c, d;
cout << "Masukkan konfisien a, b, c, dan d: " << endl;
cin >> a >> b >> c >> d;
double awal, akhir;
cout << "Masukkan nilai awalndan akhir dari x: " << endl;
cin >> awal >> akhir;
int literasi;
cout << "Masukkan jumlah literasi: ";
cin >> literasi;
double maksX = peAcak (a, b, c, d, awal, akhir, literasi);
double maksY = fungpoli (a, b, c, d, maksX);
cout << "Nilai x untuk fungsi maksimum?minimum = " <<maksX << endl;
cout << "Nilai fungsi kuadrat pada x = " << maksX << "adalah " << maksY << endl;
system ("PAUSE") ;
return 0;
}
