寒假作业打卡

#include <iostream>

using namespace std;

int main(void) {
  int n;
  scanf("%d", &n);
  int a[n];
  for (int i = 0; i < n; ++i)
    scanf("%d", &a[i]);

  int ans = 0;
  for (int i = 1; i < n; ++i)
    ans = max(ans, abs(a[i] - a[i - 1]));

  printf("%d\n", ans);
}