Compilare: user.cpp: In function ‘void bloc(int, int)’: user.cpp:23: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:84: warning: too many arguments for format user.cpp:85: warning: comparison between signed and unsigned integer expressions user.cpp:68: warning: unused variable ‘nrc’ user.cpp:71: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:73: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result