tabel.cpp: In function 'int main()': tabel.cpp:13: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result tabel.cpp:15: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result tabel.cpp:9: warning: 'in1' may be used uninitialized in this function tabel.cpp:9: warning: 'in2' may be used uninitialized in this function