Compilare: user.cpp: In function ‘int main()’: user.cpp:44:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] harta[coada[i].x][coada[i].y]=-1; ^ user.cpp:44:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] harta[coada[i].x][coada[i].y]=-1; ^ user.cpp:45:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(harta[coada[i].x+1][coada[i].y]!=-1) ^ user.cpp:47:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] harta[coada[i].x+1][coada[i].y]=-1; ^ user.cpp:53:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(harta[coada[i].x][coada[i].y+1]!=-1) ^ user.cpp:55:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] harta[coada[i].x][coada[i].y+1]=-1; ^ user.cpp:61:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(harta[coada[i].x-1][coada[i].y]!=-1) ^ user.cpp:63:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] harta[coada[i].x-1][coada[i].y]=-1; ^ user.cpp:69:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(harta[coada[i].x][coada[i].y-1]!=-1) ^ user.cpp:71:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] harta[coada[i].x][coada[i].y-1]=-1; ^ user.cpp:26:29: 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:30:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&x,&y); ^ user.cpp:35:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d",&x1,&y1,&x2,&y2); ^