Eroare de compilare: user.cpp:1: warning: ignoring #pragma option user.cpp:6:19: error: alloc.h: No such file or directory user.cpp:17: error: expected initializer before ‘key_list’ user.cpp: In function ‘int main()’: user.cpp:58: warning: comparison between signed and unsigned integer expressions user.cpp:61: warning: comparison between signed and unsigned integer expressions user.cpp:62: warning: comparison between signed and unsigned integer expressions user.cpp:68: warning: comparison between signed and unsigned integer expressions user.cpp:70: error: ‘key_list’ was not declared in this scope user.cpp:70: error: expected primary-expression before ‘unsigned’ user.cpp:70: error: expected ‘)’ before ‘unsigned’ user.cpp:85: error: ‘key_list’ was not declared in this scope user.cpp:95: warning: comparison between signed and unsigned integer expressions user.cpp:95: warning: comparison between signed and unsigned integer expressions user.cpp:54: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:55: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:64: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result