Compilare: user.cpp: In function ‘cell give(int, int, int)’: user.cpp:25:24: warning: narrowing conversion of ‘f’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] return (cell){f, l, c}; ^ user.cpp:25:24: warning: narrowing conversion of ‘l’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] user.cpp:25:24: warning: narrowing conversion of ‘c’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] user.cpp: In function ‘void enqueue(cell, int)’: user.cpp:110:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] dist[curr.f][curr.l][curr.c] = cost; ^ user.cpp:110:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] dist[curr.f][curr.l][curr.c] = cost; ^ user.cpp:110:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] dist[curr.f][curr.l][curr.c] = cost; ^ user.cpp: In function ‘void dequeue(cell*, int*)’: user.cpp:116:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] (*cost) = dist[curr -> f][curr -> l][curr -> c] + 1; ^ user.cpp:116:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] (*cost) = dist[curr -> f][curr -> l][curr -> c] + 1; ^ user.cpp:116:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] (*cost) = dist[curr -> f][curr -> l][curr -> c] + 1; ^ user.cpp: In function ‘void lee(cell)’: user.cpp:142:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (dist[next.f][next.l][next.c] == HOLE) { ^ user.cpp:142:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (dist[next.f][next.l][next.c] == HOLE) { ^ user.cpp:142:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (dist[next.f][next.l][next.c] == HOLE) { ^ user.cpp:158:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] } else if (dist[next.f][next.l][next.c] == code[0]) { ^ user.cpp:158:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] } else if (dist[next.f][next.l][next.c] == code[0]) { ^ user.cpp:158:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] } else if (dist[next.f][next.l][next.c] == code[0]) { ^ user.cpp:128:7: warning: unused variable ‘c’ [-Wunused-variable] int c = 0; ^ user.cpp: In function ‘int main()’: user.cpp:176:16: warning: unused variable ‘face’ [-Wunused-variable]