Compilare: user.cpp: In function ‘int main()’: user.cpp:48:60: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (inside(nou.x, nou.y, nou.z, n) && viz[nou.x][nou.y][nou.z] == 0) ^ user.cpp:48:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (inside(nou.x, nou.y, nou.z, n) && viz[nou.x][nou.y][nou.z] == 0) ^ user.cpp:48:74: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (inside(nou.x, nou.y, nou.z, n) && viz[nou.x][nou.y][nou.z] == 0) ^ user.cpp:50:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] viz[nou.x][nou.y][nou.z] = 1; ^ user.cpp:50:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] viz[nou.x][nou.y][nou.z] = 1; ^ user.cpp:50:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] viz[nou.x][nou.y][nou.z] = 1; ^ user.cpp:52:41: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if (nou.x == n && nou.y == n & nou.z == n) ^ user.cpp:26:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alge.in", "r", stdin); ^ user.cpp:27:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alge.out", "w", stdout); ^ user.cpp:31:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp:34:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &x, &y, &z); ^