'commit'

C++课程/第十四课位运算训练精讲/快速幂_2.cpp

@@ -0,0 +1,25 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+int quick(int a,int b)
+{
+    int s = 1;
+    while (b > 0) {
+        if (b & 1) {//b=b>>1<><31>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>϶<EFBFBD><CFB6><EFBFBD>ִ<EFBFBD>и<EFBFBD>if<69>ж<EFBFBD>
+            s = s * a;		
+           }
+        a = a * a;
+        cout<<"b="<<b<<endl;
+		cout<<"s="<<s<<endl;
+		cout<<endl;
+        b = b >> 1;
+	}
+    return s;
+}
+
+int main() {
+	printf("%d",quick(2,10));
+	return 0;
+}
+
+