hdu1506

today, my cc can't make '__in64'

it's so bad!!!

i don't know why

#include <stdio.h>
//long long num[100000+100];
__int64 num[100000+100];
__int64 res;
//long long res;
int main(){long long res;
    int n,i;
    int left[100000+10];
    int right[100000+10];
    int t;
    while(~scanf("%d",&n)&&n){
        res=0;
        for(i=1;i<=n;++i){
            scanf("%I64d",&num[i]);
        }
        left[1]=1;
        right[n]=n;
        for(i=2;i<=n;++i){
            t=i;
            while(t>1&&num[i]<=num[t-1]){
                t=left[t-1];
            }
            left[i]=t;
        }
        for(i=n-1;i>=1;--i){
            t=i;
            while(t<n&&num[i]<=num[t+1]){
                t=right[t+1];
            }
            right[i]=t;
        }
        res=0;
        for(i=1;i<=n;++i){
            if((right[i]-left[i]+1)*num[i]>res)
                res=(right[i]-left[i]+1)*num[i];
        }
        printf("%I64d
",res);
//        printf("%lld
",res);
    }
    return 0;
}