問題：B - N重丸 #include <algorithm> #include <cmath> #include <cstdio> #include <functional> #include <iostream> using namespace std; #define REP(i, n) for(int i = 0; i < (n); ++i) #define MAX (int)1e3 int main(void) { int n; double r[MAX], s = 0.0; scanf ("%d", &n); REP(i, n) { scanf </iostream></functional></cstdio></cmath></algorithm>…