Lesson 6

06/Exercise01.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdbool.h>
+#include <math.h>
+
+bool isPrime(int toBeTested){
+    int iterationMax = 0, nowCheck = 2;
+    bool isPrime = true;
+    iterationMax = sqrt(toBeTested);
+    do {
+        if (toBeTested % nowCheck == 0) {
+            isPrime = false;
+            break;
+        }
+        nowCheck++;
+    }
+    while (nowCheck <= iterationMax);
+    return isPrime;
+}
+
+int main() {
+    int j;
+    for (j = 11; j < 198; j+2) {
+        if(isPrime(j) && isPrime(j+2)) {
+            printf("%d %d\n", j, j+2);
+        }
+    }
+    return 0;
+}