qvect.cpp: In function 'int main()': qvect.cpp:64: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result qvect.cpp:67: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result qvect.cpp:71: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result qvect.cpp:76: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result qvect.cpp: In function 'int q2(int, int, int)': qvect.cpp:28: warning: 'rez' may be used uninitialized in this function qvect.cpp:28: warning: 'sol' may be used uninitialized in this function