Compilare: user.cpp: In function ‘int main()’: user.cpp:47:14: warning: variable ‘ext’ set but not used [-Wunused-but-set-variable] char lit,ext; ^ user.cpp:48:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d",&n,&x,&y,&q); ^ user.cpp:66:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&x,&nr); ^ user.cpp: In function ‘int CautBinLin(int, int, int)’: user.cpp:17:23: warning: ‘rasp’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(rasp!=0&&l[rasp-1][cif]==x) ^ user.cpp: In function ‘int CautBinCol(int, int, int)’: user.cpp:36:23: warning: ‘rasp’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(rasp!=0&&c[rasp-1][cif]==x) ^