3078-先序拓展创建

#include <bits/stdc++.h>

void solve() {
    char c = getchar();
    if (c == '.') return;
    solve();
    std::cout << c;
    solve();
}

signed main() {
    solve();
    std::cout << "\n";
    return 0;
}

标签：std,return,cout,void,拓展,char,solve,先序,3078
来源： https://www.cnblogs.com/dolphinchan/p/16369404.html