Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:19: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void bloc(int)’: user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:91: warning: too many arguments for format user.cpp:75: warning: unused variable ‘nrc’ user.cpp:75: warning: unused variable ‘j’ user.cpp:78: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:80: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result