castig.cpp: In function 'int main()': castig.cpp:12: warning: unused variable 'gt' castig.cpp:11: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result castig.cpp:15: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result