洛谷 P5146 最大差值

题目传送门

好水的题...

AC代码:

 #include<iostream>
 #include<cstdio>

 using namespace std;

 int n,m = ,a,ans = -;

 inline int max(int s,int d) {
     if(s >= d) return s;
     else return d;
 }

 int main() {
     scanf("%d",&n);
     for(int i = ;i <= n; i++) {
         scanf("%d",&a);
         if(a < m) m = a;
         else ans = max(ans,a - m);
     }
     printf("%d",ans);
     return ;
 }