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#include <iostream> #include <string> inline std::string unescape_string(const std::string &s) { std::string res; for (size_t i = 0; i < s.length(); i++) { if (s[i] == '\\') { i++; if (i >= s.length()) break; } res += s[i]; } return res; } inline std::string unescape_string2(const std::string &s) { std::string res; for (size_t i = 0; i < s.length(); i++) { if (s[i] == '\\') i++; res += s[i]; } return res; } int main(void) { std::string s = "\\a\\b\\\\\a", s2 = "a\\"; std::cout << unescape_string(s) << std::endl; std::cout << unescape_string2(s) << std::endl; std::cout << unescape_string(s2) << std::endl; std::cout << unescape_string2(s2) << std::endl; return 0; }
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