codes

Question 1

primes in array

Answer 1

include <iostream></iostream>

#include <math.h></math.h>

int main() {
int arr[] = {1,2,3,4,5,6,7,8,9};

int i = 0;
int j = 2;
for(i=0;i<(sizeof(arr)/sizeof(arr[i])); i++){
bool flag = true;
for(j=2;j<=sqrt(arr[i]);j++){
if(arr[i]%j==0){
flag = false;
break;
}
}
if(flag==true && arr[i]>1){
std::cout«arr[i] &laquo_space;” “ ;
}
}
}