Borderou de evaluare (job #491033)

Compilare: user.cpp: In function 'void push(int, int, int)': user.cpp:13:38: warning: operation on 's' may be undefined [-Wsequence-point] user.cpp:16:38: warning: operation on 's' may be undefined [-Wsequence-point] user.cpp: In function 'int main()': user.cpp:27:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:31:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]