Compilare: user.cpp: In function ‘char Query(int, int, int, int)’: user.cpp:37:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^ user.cpp:37:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^ user.cpp:37:68: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^ user.cpp:37:74: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^ user.cpp:37:107: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^ user.cpp:37:113: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^ user.cpp:37:153: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^ user.cpp:37:159: warning: array subscript has type ‘char’ [-Wchar-subscripts] return max(max(rmq[x][y][difa][difb],rmq[x][z-(1<<difb)+1][difa][difb]),max(rmq[w-(1<<difa)+1][y][difa][difb],rmq[w-(1<<difa)+1][z-(1<<difb)+1][difa][difb])); ^