2022-6

#include
using namespace std;

int main() {

  //n个整数；
  int n;

  double num[10];
  //总值sum、平均值a、标准差d、方差s
  double sum = 0,a, d = 0, s;
  

  //输入
  cin >> n;
  for (int i = 0; i     cin >> num[i];
    sum += num[i];
  }

  //计算
  a = sum / n;
  for (int i = 0; i     d += (num[i] - a) * (num[i] - a);
  }
  d = d / n;
  s = sqrt(d);
  for (int i = 0; i     num[i] = (num[i] - a) / s;
  }

  //输出
  for (int i = 0; i     printf("%.16fn", num[i]);
  }

  return 0;
}