first commit

年历（年、月份）.cpp

@@ -0,0 +1,40 @@
+#include <stdio.h>
+int Y(int A)
+{
+	int i,s=0,day;
+	for(i=1;i<=A-1;i++)
+	{
+		if(i%4==0&&i%100!=0||i%400==0)
+		day=366;
+		else
+		day=365;
+		s=s+day;
+	}
+	return s;
+}
+
+int R(int B,int C)
+{
+	int T;
+	switch(C)
+	{  	
+		case 1:					T=31;break;
+		case 2:
+		if(B%4==0&&B%100!=0||B%400==0)
+		T=29;
+		else
+		T=28;
+		break;
+		case 3:                 T=31;break;
+		case 4:					T=30;break;
+		case 5:					T=31;break;
+		case 6:					T=30;break;
+		case 7:					T=31;break;
+		case 8:					T=31;break;
+		case 9:					T=30;break;
+		case 10:				T=31;break; 
+		case 11:			    T=30;break;
+		case 12:				T=31;break;
+	}
+	return T;
+}