1 files changed, 25 insertions, 0 deletions
diff --git a/works/life/operating-system-experiment/DeadLockDetectionDemo.cpp b/works/life/operating-system-experiment/DeadLockDetectionDemo.cpp
new file mode 100644
index 0000000..b22549e
--- /dev/null
+++ b/works/life/operating-system-experiment/DeadLockDetectionDemo.cpp
@@ -0,0 +1,25 @@
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+int main() {
+  std::vector<int> ns;
+
+  while (!std::cin.eof() || std::cin) {
+    int n;
+    std::cin >> n;
+    ns.push_back(n);
+  }
+
+  if (!std::cin.eof()) {
+    std::cerr << "Failed to parse input.\n";
+    return -1;
+  }
+
+  if (ns.size() % 2 != 0) {
+    std::cerr << "Input integer number must be even.\n";
+    return -1;
+  }
+
+  
+}