1 files changed, 37 insertions, 0 deletions
diff --git a/2022-2/L01/mitsuo/aux.cpp b/2022-2/L01/mitsuo/aux.cpp
new file mode 100644
index 0000000..bd9417d
--- /dev/null
+++ b/2022-2/L01/mitsuo/aux.cpp
@@ -0,0 +1,37 @@
+/* Auxiliary/helper/reusable functions */
+
+#include <iostream>
+#include <iomanip>
+
+#include "aux.h"
+
+using namespace std;
+
+/* "dd/mm/yyyy"  ->  yyyymmdd (int) */
+int readdate(istream &is)
+{
+    char c;
+    int d, m, y;
+
+    is >> d >> c
+       >> m >> c
+       >> y;
+
+    return y * 10000 + m * 100 + d;
+}
+
+/* yyyymmdd (int)  ->  "dd/mm/yyyy" */
+void writedate(ostream &os, int intdate)
+{
+    int d, m, y;
+    
+    d = intdate % 100;
+    intdate /= 100;
+    m = intdate % 100;
+    intdate /= 100;
+    y = intdate;
+    
+    os << WR0(2, 2, y) << '/' 
+       << WR0(2, 2, m) << '/' 
+       << WR0(2, 2, d) << '\n';
+}