Compilare: user.cpp: In function ‘int main()’: user.cpp:47:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d" ,&n ,&m); ^ user.cpp:50:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d" ,&v[i][l]); ^ user.cpp: In function ‘void note(int, int, int, int)’: user.cpp:32:18: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] v1[i+dirl[poz]][l+dirc[poz]]=ex+x; ~~~~~~~~^ user.cpp: In function ‘int main()’: user.cpp:74:34: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] x=v1[iii+dirl[poz]][lll+dirc[poz]]; ~~~~~~~~^