Borderou de evaluare (job #209487)

Compilare: user.cpp: In function ‘int main()’: user.cpp:28:22: warning: unused variable ‘a’ [-Wunused-variable] user.cpp:28:25: warning: unused variable ‘b’ [-Wunused-variable] user.cpp:28:28: warning: unused variable ‘r’ [-Wunused-variable] user.cpp:30:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:31:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:33:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:47:18: warning: ‘poz’ may be used uninitialized in this function [-Wuninitialized]