Compilare: user.cpp: In function ‘int main()’: user.cpp:41:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.cpp:44:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &a[i][j]); ^ user.cpp:60:28: warning: ‘jmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] int dir = road[imax][jmax]; ^ user.cpp:60:28: warning: ‘imax’ may be used uninitialized in this function [-Wmaybe-uninitialized]