这么冷吗？
by zhy137036 @ 2019-09-08 18:12:40
@[zhy123456](/space/show?uid=178294) 给你个datamaker自己对拍吧
```cpp
#include <ctime>
#include <cstdlib>
#include <iostream>
#include <map>
#include <set>
using namespace std;
set<int> s;
int n = 15;
int main(void) {
int maxv = -1, minv = 0x7fffffff;
srand(time(0));
cout << n << endl;
while (n--) {
if (!s.empty()) {
int rv;
if (s.size() >= 3) rv = rand() % 15;
else rv = rand() % 10;
if (rv < 3) { //erase
cout << '2' << ' ';
{
auto i = s.begin();
int e = rand() % s.size();
for (; e; --e, ++i);
cout << *i << endl;
s.erase(*i);
}
} else if (rv < 5) { //insert
cout << '1' << ' ';
int v = rand() % 1000 + 1;
if (v > maxv) maxv = v;
if (v < minv) minv = v;
s.insert(v);
cout << v << endl;
} else if (rv < 8) { //get_rank
cout << '3' << ' ';
{
auto i = s.begin();
int e = rand() % s.size();
for (; e; --e, ++i);
cout << *i << endl;
}
} else if (rv < 9) { //get_val
cout << '4' << ' ';
cout << rand() % s.size() + 1 << endl;
} else if (rv < 12) { //get_pre
if (maxv - minv + 1 <= 1) { ++n; continue;}
cout << '5' << ' ';
cout << (rand() % (maxv - minv + 1) + minv + 1) << endl;
} else { //get_next
if (maxv - minv + 1 <= 1) { ++n; continue;}
cout << '6' << ' ';
cout << (rand() % (maxv - minv + 1) + minv - 1) << endl;
}
} else {
cout << '1' << ' ';
int v = rand() % 1000 + 1;
if (v > maxv) maxv = v;
if (v < minv) minv = v;
s.insert(v);
cout << v << endl;
}
}
return 0;
}
```
by encore @ 2019-09-08 18:17:27
@[encore](/space/show?uid=113385) 我不会写生成随机数据的程序，能提供一个吗？~~不要脸ing~~
by zhy137036 @ 2019-09-08 18:23:26
@[zhy123456](/space/show?uid=178294) 就是上面那个啊
by encore @ 2019-09-08 18:24:00
@[zhy123456](/space/show?uid=178294) 那个是我以前做这道题时对拍用的，能生成一些小数据
by encore @ 2019-09-08 18:25:10
~~眼瞎~~
by zhy137036 @ 2019-09-08 18:26:38