telecab.cpp: In function 'int main()': telecab.cpp:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result telecab.cpp:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result telecab.cpp:58: warning: 'sq' may be used uninitialized in this function