Borderou de evaluare (job #468242)

Compilare: user.cpp: In function ‘int cmmdc(int, int)’: user.cpp:29:27: warning: operation on ‘a’ may be undefined [-Wsequence-point] user.cpp:29:27: warning: operation on ‘b’ may be undefined [-Wsequence-point] user.cpp:29:27: warning: operation on ‘b’ may be undefined [-Wsequence-point] user.cpp: In function ‘int main()’: user.cpp:35:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]