Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:21: warning: format ‘%s’ expects type ‘char*’, but argument 3 has type ‘char (*)[1000001]’ user.cpp:23: error: ‘strlen’ was not declared in this scope user.cpp:43: error: ‘sqrt’ was not declared in this scope user.cpp:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result