Data commit

Task/Loops-Increment-loop-index-within-loop-body/C/loops-increment-loop-index-within-loop-body.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <locale.h>
+
+#define LIMIT 42
+
+int is_prime(long long n) {
+    if (n % 2 == 0) return n == 2;
+    if (n % 3 == 0) return n == 3;
+    long long d = 5;
+    while (d * d <= n) {
+        if (n % d == 0) return 0;
+        d += 2;
+        if (n % d == 0) return 0;
+        d += 4;
+    }
+    return 1;
+}
+
+int main() {
+    long long i;
+    int n;
+    setlocale(LC_NUMERIC, "");
+    for (i = LIMIT, n = 0; n < LIMIT; i++)
+        if (is_prime(i)) {
+            n++;
+            printf("n = %-2d  %'19lld\n", n, i);
+            i += i - 1;
+        }
+    return 0;
+}