Compilare: user.cpp: In function ‘int partition(int, int)’: user.cpp:68:19: 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:68:29: 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:68:46: 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:68:56: 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:88:7: warning: unused variable ‘i’ [-Wunused-variable] int i, k, l, c; ^ user.cpp: In function ‘int main()’: user.cpp:142:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] fprintf(g, "%d ", V[rez[i]].val); ^ user.cpp: In function ‘int partition(int, int)’: user.cpp:73:1: warning: control reaches end of non-void function [-Wreturn-type] } ^