Compilare: user.cpp: In function ‘void cit(int&)’: user.cpp:20:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (lin[poz]<'0' || lin[poz]>'9'){ ^ user.cpp:20:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (lin[poz]<'0' || lin[poz]>'9'){ ^ user.cpp:24:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (lin[poz]>='0' && lin[poz]<='9'){ ^ user.cpp:24:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (lin[poz]>='0' && lin[poz]<='9'){ ^ user.cpp:25:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] x = 10*x+lin[poz++]-'0'; ^ user.cpp: In function ‘int main()’: user.cpp:71:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("transport2.in", "r", stdin); ^ user.cpp: In function ‘void cit(int&)’: user.cpp:22:59: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if (poz == Dim) fread(lin, 1, Dim, stdin), poz=0; ^ user.cpp:26:57: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if (poz == Dim) fread(lin, 1, Dim, stdin), poz=0; ^