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在论坛上学的DP,却总是TLE,恳请高人指点!!这是我的代码
#include<stdio.h>
int left[100005],right[100005],i,j,k,n;
__int64 brick[100005]={0},max,l;
int main(int argc, char* argv[])
{
while(scanf("%d",&n)>0)
{
if(n==0) break;
for(i=1;i<=n;i++)
{
scanf("%I64d",&brick[i]);
left[i]=right[i]=i;
}
brick[i+1]=brick[0]=0;
for(i=1;i<=n;i++)
{
while(brick[left[i]-1]>=brick[i])
{left[i]=left[left[i]-1];}
}
for(i=n;i>=1;i--)
{
while(brick[right[i]+1]>=brick[i])
{right[i]=right[right[i]+1];}
}
max=0;
for(i=1;i<=n;i++)
{
l=right[i]-left[i]+1;
if(l*brick[i]>max)
{
max=l*brick[i];
}
}
printf("%I64d\n",max);
}
return 0;
}
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