Compilare: user.cpp: In function ‘int partition(int, int)’: user.cpp:40:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] swap(A[V[i].lin][V[i].col].ind, A[V[j].lin][V[j].col].ind); ^ user.cpp:40:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] swap(A[V[i].lin][V[i].col].ind, A[V[j].lin][V[j].col].ind); ^ user.cpp:40:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] swap(A[V[i].lin][V[i].col].ind, A[V[j].lin][V[j].col].ind); ^ user.cpp:40:56: warning: array subscript has type ‘char’ [-Wchar-subscripts] swap(A[V[i].lin][V[i].col].ind, A[V[j].lin][V[j].col].ind); ^ user.cpp: In function ‘void back(int, int, int)’: user.cpp:60:7: warning: unused variable ‘i’ [-Wunused-variable] int i, k, l, c; ^ user.cpp: In function ‘int main()’: user.cpp:139:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] g << V[rez[i]].val << " "; ^ user.cpp: In function ‘int partition(int, int)’: user.cpp:45:1: warning: control reaches end of non-void function [-Wreturn-type] } ^