hdoj 2552

http://acm.hdu.edu.cn/showproblem.php?pid=2552

/*1.tan(a+b) = ( tan(a) + tan(b) ) / (1 – tan(a) * tan(b) )2.tan( atan(x) ) = x可以推出结果总是为1*/#include <iostream>using namespace std;int main(){ int n,x; scanf("%d",&n); while(n--) {  scanf("%d",&x);  printf("1\n"); } return 0;}