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Class 1 hw 5/24
In Java Question Bank
mwmaxwang3131
May 27, 2020
thx man
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Class 1 hw 5/24
In Java Question Bank
mwmaxwang3131
May 25, 2020
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Class 1 HW 5/16
In Java Question Bank
mwmaxwang3131
May 23, 2020
did u copy me lol
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Class 1 HW 5/16
In Java Question Bank
mwmaxwang3131
May 23, 2020
stop copying me XD
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Class 1 HW 5/16
In Java Question Bank
mwmaxwang3131
May 22, 2020
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Class 1 Homework 5/2
In Java Question Bank
mwmaxwang3131
May 04, 2020
public class Main { public static void main(String[] args) { int N = 100; boolean[] isPrime = new boolean[N + 1]; for (int i = 2; i <= N; i++) { isPrime[i] = true; } for (int i = 2; i*i <= N; i++) { if (isPrime[i]) { for (int j = i; i*j <= N; j++) { isPrime[i*j] = false; } } } // count primes int primes = 0; for (int i = 2; i <= N; i++) { if (isPrime[i]) primes++; } System.out.println( "The number of primes <= " + N + " is " + primes); } }
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