ural1010 Discrete Function

不难发现倾角最大的肯定是相邻两点。

#include <bits/stdc++.h>using namespace std;typedef long long LL;const int N = 100005;LL a[N];int main() {    int n; scanf("%d", &n);    for (int i = 1; i <= n; i++) scanf("%lld", &a[i]);    LL tmp = 0;    int ans = 0;    for (int i = 2; i <= n; i++) {        if (abs(a[i] - a[i - 1]) > tmp) {            tmp = abs(a[i] - a[i - 1]);            ans = i;        }    }    printf("%d %d\n", ans - 1, ans);    return 0;}