add random stuffs

make_zombie_process.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <unistd.h>
+
+int main() {
+    pid_t pid = fork();
+    if (pid < 0) {
+        perror("fork failed");
+        return 1;
+    }
+    if (pid != 0) {
+        sleep(30);
+    }
+    return 0;
+}