Initial commit

Miscellaneous/prime_array.cpp

@@ -0,0 +1,46 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+#define NUMBER 1000
+
+int IsPrime(int x, int KnowPrimes[], int NumberOfKnowPrimes);
+
+int main(void) {
+	int prime[NUMBER] = { 2 };
+	int cnt = 1;
+	int x = 3;
+
+	while (cnt < NUMBER) {
+		if (IsPrime(x, prime, cnt)) {
+			prime[cnt++] = x;
+		}
+		x++;
+	}
+
+	for (int i = 0; i < NUMBER; i++) {
+		printf("%d", prime[i]);
+
+		if ((i + 1) % 5) {
+			printf("\t");
+		}
+		else {
+			printf("\n");
+		}
+	}
+
+	return 0;
+}
+
+int IsPrime(int x, int KnowPrimes[], int NumberOfKnowPrimes) {
+	int ret = 1;
+
+	for (int i = 0; i < NumberOfKnowPrimes; i++) {
+		if (x % KnowPrimes[i] == 0) {
+			ret = 0;
+			break;
+		}
+	}
+
+	return ret;
+}