0_0_29283736_8996.cpp:2:16: error: 'string' was not declared in this scope
bool is_reback(string& str)
^
0_0_29283736_8996.cpp:2:24: error: 'str' was not declared in this scope
bool is_reback(string& str)
^
0_0_29283736_8996.cpp:3:1: error: expected ',' or ';' before '{' token
{
^
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