题解 | #单组_spj判断浮点误差#
单组_spj判断浮点误差
https://www.nowcoder.com/practice/6652094c6a0e4381911b541ed664d8b7
#include<bits/stdc++.h> using namespace std; int main() { int r; cin >> r; printf("%lf",M_PI *pow(r, 2)) ;// 用c++自带的pi }
单组_spj判断浮点误差
https://www.nowcoder.com/practice/6652094c6a0e4381911b541ed664d8b7
#include<bits/stdc++.h> using namespace std; int main() { int r; cin >> r; printf("%lf",M_PI *pow(r, 2)) ;// 用c++自带的pi }
相关推荐