You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
630 B
34 lines
630 B
#include <bits/stdc++.h>
|
|
|
|
using namespace std;
|
|
|
|
void dfs(string str) {
|
|
if (str.size() > 1) {
|
|
dfs(str.substr(0, str.size() / 2)); // 左子树
|
|
dfs(str.substr(str.size() / 2)); // 右子树
|
|
}
|
|
// 我该输出啥？
|
|
int one = 0, zero = 0;
|
|
for (int i = 0; i < str.size(); i++)
|
|
if (str[i] == '0')
|
|
zero++;
|
|
else
|
|
one++;
|
|
|
|
if (one && zero)
|
|
cout << 'F';
|
|
else if (one)
|
|
cout << 'I';
|
|
else
|
|
cout << 'B';
|
|
}
|
|
|
|
int main() {
|
|
int n;
|
|
string str;
|
|
cin >> n >> str;
|
|
|
|
dfs(str);
|
|
return 0;
|
|
}
|