0_0_38070314_12754.cpp: In function 'std::ostream& operator<<(std::ostream&, const std::map<K, V>&)':
0_0_38070314_12754.cpp:21:149: error: expected unqualified-id before '[' token
template <typename K, typename V> std::ostream &operator<<(std::ostream &out, const std::map<K, V> &m) { out << "{"; bool first = true; for (auto &&[k, v] : m) { if (first) { first = false; } else { out << ", "; } out << k << ": " << v; } return out << "}"; }
^
0_0_38070314_12754.cpp:21:149: error: expected ';' before '[' token
0_0_38070314_12754.cpp:21:150: error: 'k' was not declared in this scope
template <typename K, typename V> std::ostream &operator<<(std::ostream &out, const std::map<K, V> &m) { out << "{"; bool first = true; for (auto &&[k, v] : m) { if (first) { first = false; } else { out << ", "; } out << k << ": " << v; } return out << "}"; }
^
0_0_38070314_12754.cpp:21:153: error: 'v' was not declared in this scope
template <typename K, typename V> std::ostream &operator<<(std::ostream &out, const std::map<K, V> &m) { out << "{"; bool first = true; for (auto &&[k, v] : m) { if (first) { first = false; } else { out << ", "; } out << k << ": " << v; } return out << "}"; }
^
0_0_38070314_12754.cpp: In lambda function:
0_0_38070314_12754.cpp:21:156: error: expected '{' before ':' token
template <typename K, typename V> std::ostream &operator<<(std::ostream &out, const std::map<K, V> &m) { out << "{"; bool first = true; for (auto &&[k, v] : m) { if (first) { first = false; } else { out << ", "; } out << k << ": " << v; } return out << "}"; }
^
0_0_38070314_12754.cpp: In function 'std::ostream& operator<<(std::ostream&, const std::map<K, V>&)':
0_0_38070314_12754.cpp:21:156: error: expected ';' before ':' token
0_0_38070314_12754.cpp:21:156: error: expected primary-expression before ':' token
0_0_38070314_12754.cpp:21:156: error: expected ')' before ':' token
0_0_38070314_12754.cpp:21:156: error: expected primary-expression before ':' token
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