Compilare: user.cpp: In function ‘int calculeaza()’: user.cpp:67: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:100: warning: comparison between signed and unsigned integer expressions user.cpp:102: warning: comparison between signed and unsigned integer expressions user.cpp:94: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result