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main.cpp
88 lines (77 loc) · 1.61 KB
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main.cpp
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#include <iostream>
#include <vector>
#include <math.h>
#include <time.h>
using namespace std;
int main() {
bool loopbool = true;
int random;
vector<int> myintvector;
int tempsize;
int x;
int size = 0;
char variable;
cout<< "What command do you want?" << endl << "1 = One Random Prime Number" << endl << "2 = Ten Random Prime Numbers" << endl << "Q = Quit" << endl;
std::cin>> variable;
srand( time(NULL) );
if(variable == 'Q' || variable == 'q') {
loopbool = false;
}
while(loopbool) {
if(variable = '1'){
std::cout<< "Type in a positive number" << endl;
int num;
bool primeNum;
primeNum = true;
std::cin>> num;
for(int i = 3; i <= num; i++) {
for(int k = 2; k <= i - 1; k++) {
if(i % k == 0) {
primeNum = false;
}
}
if(primeNum) {
myintvector.push_back (i);
size = size++;
}
}
random = rand() % size;
x = myintvector[random];
std::cout<< x << endl;
myintvector.clear();
size = 0 ;
}
if(variable == '2') {
std::cout<< "Type in a positive number" << endl;
int num;
bool primeNum;
primeNum = true;
std::cin>> num;
for(int i = 3; i <= num; i++) {
for(int k = 2; k <= i - 1; k++) {
if(i % k == 0) {
primeNum = false;
}
}
if(primeNum) {
myintvector.push_back (i);
size = size++;
}
}
for(int c = 0; c <= 9; c++) {
random = rand() % size;
x = myintvector[random];
std::cout<< x << ", ";
myintvector.clear();
size = 0 ;
}
}
if(variable == 'Q' || variable == 'q') {
loopbool = false;
}
std::cin>> variable;
}
int y;
std::cin>>y;
return 0;
}