showroom.cpp: In function 'int getDealersNumber()': showroom.cpp:129: warning: unused variable 'indexOfdealer' showroom.cpp:129: warning: unused variable 'belongIndex' showroom.cpp:130: warning: unused variable 'model' showroom.cpp:133: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result showroom.cpp: In function 'int main()': showroom.cpp:150: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result