1 files changed, 33 insertions, 0 deletions
diff --git a/store/works/life/operating-system-challenge/1/main.cpp b/store/works/life/operating-system-challenge/1/main.cpp
new file mode 100644
index 0000000..0f780ef
--- /dev/null
+++ b/store/works/life/operating-system-challenge/1/main.cpp
@@ -0,0 +1,33 @@
+// Remember not to use O2 optimization!
+
+#include <thread>
+#include <vector>
+
+int main() {
+  std::vector<std::thread> threads;
+
+  // Because my CPU has 4-core and 8-threads. I open 8 threads.
+  for (int i = 0; i < 8; i++) {
+    std::thread t([] {
+      int i;
+      int j;
+      int k;
+      double d;
+      while (true) {
+        i = i + i;
+        j = j - j;
+        k = k * k;
+        d = d + d;
+        i = i & i;
+        j = j | j;
+      }
+    });
+    threads.push_back(std::move(t));
+  }
+
+  for (auto &t : threads) {
+    t.join();
+  }
+
+  return 0;
+}