Codeforces 385A Bear and Raspberry

题目链接：Codeforces 385A Bear and Raspberry

#include <iostream>
#include <cstdio>

using namespace std;

const int MAX_N = 100 + 10;

int main()
{
    int arr[MAX_N], n, c;
    scanf("%d%d", &n, &c);
    for(int i = 0; i < n; i++)
        scanf("%d", &arr[i]);
    int _max;
    _max = arr[0] - arr[1] - c;
    for(int i = 1; i < n - 1; i++)
        _max = max(arr[i] - arr[i + 1] - c, _max);
    if(_max < 0)
        _max = 0;
    printf("%d\n", _max);
    return 0;
}