Determining whether a number is a prime number
bool isPrime(int num) {
for (int i = 2; i * i <= num; ++i) {
if (num % i == 0)
return false;
}
return (num != 1); /* 1不为素数 */
}
Will slowly update ...
bool isPrime(int num) {
for (int i = 2; i * i <= num; ++i) {
if (num % i == 0)
return false;
}
return (num != 1); /* 1不为素数 */
}
Will slowly update ...