Compilare: user.cpp: In function ‘int main()’: user.cpp:68:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:71:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &mat[i][j]); ^ user.cpp:76:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &sx, &sy, &fx, &fy); ^ user.cpp: In function ‘void lee(int, int, int)’: user.cpp:53:38: warning: ‘ndir’ may be used uninitialized in this function [-Wmaybe-uninitialized] directie[cx][cy]=ndir; ^