Add FZOI Codes

FZOI/「CSP-J2020」优秀的拆分.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+using namespace std;
+
+int n, a[30], j, k;
+int main(){
+	cin >> n;
+	if(n % 2 == 1) cout << -1;
+	else{
+		for(int i = n; i != 0; i /= 2){
+			j ++ ;
+			a[j] = i % 2;
+		}
+		k = j - 1;
+		for(int i = j; i >= 1; i -- ){
+			long long s = pow(2, k);
+			if(a[i] != 0) cout << s << " " ;
+			k -- ;
+		}
+	}
+    return 0;
+}