Initial commit

Miscellaneous/prime_array_2.cpp

@@ -0,0 +1,29 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+#define N 100
+
+int main(void) {
+	int prime[N];
+
+	for (int i = 0; i < N; i++) {
+		prime[i] = 1;
+	}
+
+	for (int x = 2; x < N; x++) {
+		if (prime[x]) {
+			for (int i = 2; x * i < N; i++) {
+				prime[x * i] = 0;
+			}
+		}
+	}
+
+	for (int i = 2; i < N; i++) {
+		if (prime[i]) {
+			printf("%d ", i);
+		}
+	}
+
+	return 0;
+}