敲错字了，是csp不是scp，抱歉！
by Tim147147 @ 2022-11-22 14:09:32
如果这题暴力能过，那这题也不配放在s组了
by Dream_weavers @ 2022-11-22 14:12:52
@[Dream_weavers](/user/572482) 那也不至于0分吧？
by Tim147147 @ 2022-11-22 14:16:28
@[Dream_weavers](/user/572482) 但是暴力有60（
by newbie_QwQ @ 2022-11-22 14:20:53
@[Quhaoran123](/user/535491) 错误的，暴力有85
by BFSDFS123 @ 2022-11-22 14:30:45
```cpp
#define INF (1<<31-1);
```
INF这么小？
by 幽竹烟雨 @ 2022-11-22 14:32:12
刚刚找到问题了
c = a[i]*b[j];应改为c = (long long)a[i]*b[i];忘记数据类型的转换。
另外，INF用小了，换成LLONG_MAX，这就暴力就可以拿60分了.
谢谢大家！
```cpp
#include<bits/stdc++.h>
using namespace std;
const int maxn = 100001;
int a[maxn],b[maxn];
int n,m,q;
long long res[maxn];
int main()
{
cin >> n >> m >> q;
for(int i=1; i<=n; i++)
cin >> a[i] ;
for(int i=1; i<=m; i++)
cin >> b[i];
for(int k=1; k<=q; k++)
{
int l1,r1,l2,r2;
cin >> l1 >> r1 >> l2 >> r2;
long long max_v = -LLONG_MAX;
for(int i=l1; i<=r1; i++)
{
long long min_v = LLONG_MAX;
for(int j=l2; j<=r2; j++)
{
long long c;
c = (long long)a[i]*b[j];
if(c<min_v)
min_v = c;
}
if(min_v>max_v)
max_v = min_v;
}
res[k] = max_v;
}
for(int k=1; k<=q; k++)
cout << res[k] << endl;
return 0;
}
```
by Tim147147 @ 2022-11-22 14:49:24
怎么刚打完字刷新一下就发现问题了（）建议还是用INT_MAX这种编译器带的形式
反正我复赛没开longlong见祖宗了
by amxxxxx @ 2022-11-22 14:53:30
建议用 `numeric_limits<long long>::max()`
by qwasd @ 2022-11-22 15:16:11