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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; }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; }