Compilare: user.cpp: In function ‘int cupleaza(int)’: user.cpp:24: warning: comparison between signed and unsigned integer expressions user.cpp:25: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:67: warning: unused variable ‘ok’ user.cpp:58: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:60: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result