statistics

#include <stdio.h>
#include <stdlib.h>
#define N 100
static int a[N] = {};
static int input(void) {
  puts("整数を入力して下さい。（0で終了）");
  int n = 0, e;
  for (int s = scanf("%d", &e); s == 1 && e != 0; s = scanf("%d", &e)) {
    if (N <= n) {
      exit(1);
    }
    a[n++] = e;
  }
  return n;
}
#undef N
static double avg(int n) {
  double sum = 0.;
  for (int i = 0; i < n; ++i) {
    sum += a[i];
  }
  return sum / n;
}
static int max(int n) {
  int m = a[0];
  for (int i = 1; i < n; ++i) {
    if (m < a[i]) {
      m = a[i];
    }
  }
  return m;
}
static int min(int n) {
  int m = a[0];
  for (int i = 1; i < n; ++i) {
    if (a[i] < m) {
      m = a[i];
    }
  }
  return m;
}
int main(void) {
  int n = input();
  if (n < 1) {
    exit(1);
  }
  {
    printf("入力データ数: %d\n", n);
    printf("元データ: ");
    for (int i = 0; i < n; ++i) {
      printf("%s%d", (i == 0 ? "" : " "), a[i]);
    }
    puts("");
  }
  { printf("平均値:%.1f 最大値:%d 最小値:%d\n", avg(n), max(n), min(n)); }
}