b210.cpp: In function 'int main()': b210.cpp:31: warning: unused variable 'zero' b210.cpp:31: warning: unused variable 'unu' b210.cpp:31: warning: unused variable 'r' b210.cpp:31: warning: unused variable 'numar' b210.cpp:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result