归类了 OJ，整理了一下

XSM OJ 重庆小码王集团OJ/十进制转二进制(digui).cpp

@@ -0,0 +1,26 @@
+#include <algorithm>
+#include <iostream>
+#include <iomanip>
+#include <cstring>
+#include <cstdio>
+#include <stack>
+#include <ctime>
+#include <cmath>
+#include <queue>
+typedef long long l;
+typedef double d;
+typedef char c;
+using namespace std;
+void wjh(int a){
+	if(a<=0){
+		return;
+	} 
+	wjh(a/2);
+	cout <<a%2;
+} 
+int main(){
+	int a;
+	cin >>a;
+	wjh(a);
+	return 0;
+}