Compilare: user.cpp: In function ‘int main()’: user.cpp:22: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:30: warning: format ‘%d’ expects type ‘int’, but argument 4 has type ‘long int’ user.cpp:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:12: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:18: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:10: warning: ‘candidat’ may be used uninitialized in this function