```cpp
#include <iostream>
using namespace std;
const int MAXN = 1e5 + 10;
int a[MAXN];
int main() {
int N, M;
cin >> N >> M;
for (int i = 0; i < N; ++i) {
cin >> a[i];
}
for (int i = 0; i < M; ++i) {
int x;
cin >> x;
int left = 0, right = N - 1, result = -1;
while (left <= right) {
int mid = left + (right - left) / 2;
if (a[mid] < x) {
result = mid;
left = mid + 1;
} else {
right = mid - 1;
}
}
cout << result << endl;
}
return 0;
}
```
@[ym_612_04](/user/1338122) ？？？这不是模板题吗？
by qwertyuiop951357 @ 2024-04-29 22:08:53
@[qwertyuiop951357](/user/991301) 不是模版ToT，题目改了一点，模版我倒是会做[捂脸]
by ym_612_04 @ 2024-04-30 20:37:08