nyoj-739-笨蛋难题四

#include<stdio.h>
int main()
{
    int n,i,min,m,t;
    while(scanf("%d",&n)!=EOF)
    {
        scanf("%d",&t);
        min=t;
        for(m=0,i=1;i<n;i++)
        {
            scanf("%d",&t);
            if(t-min>m)
            m=t-min;
            if(min>t)
            min=t;
        }
        printf("%d\n",m);
    }
    return 0;
}