算法提高 复数归一化

 1 #include<iostream>
 2 #include<cstdio>
 3 #include<cstring>
 4 #include<algorithm>
 5 #include<cmath>
 6 using namespace std;
 7 int main()
 8 {
 9     double a,b;
10     double a1,b1;
11     while(~scanf("%lf%lf",&a,&b))
12     {
13         a1=a/sqrt(a*a+b*b);
14         b1=b/sqrt(a*a+b*b);
15         printf("%.1lf+%.1lfi\n",a1,b1);
16     }
17     return 0;
18 }