Eroare de compilare: user.cpp: In function ‘int simple_case()’: user.cpp:26:40: error: ‘strrev’ was not declared in this scope printf("%s ", strrev(text[0][j])); ^ user.cpp: In function ‘int difficult_case()’: user.cpp:70:50: error: ‘strrev’ was not declared in this scope printf("%s ", strrev(text[p[i].x][p[i].y])); ^ user.cpp: In function ‘int main()’: user.cpp:76:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mesaje.in", "r", stdin); ^ user.cpp:77:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mesaje.out", "w", stdout); ^ user.cpp: In function ‘bool cmp(putere, putere)’: user.cpp:40:1: warning: control reaches end of non-void function [-Wreturn-type] } ^