Eroare de compilare: user.cpp: In function ‘int solve()’: user.cpp:44: error: ‘abs’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:84: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘bool*’ user.cpp:79: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:80: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:81: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:84: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result