Compilare: user.cpp: In function ‘int main()’: user.cpp:39:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] s[1] = NULL; ^ user.cpp:45:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[i] = d[dalfabet[cuvinte[i][0]]] + 1; ^ user.cpp:50:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] dalfabet[cuvinte[i][lungc[i] - 1]] = i; ^ user.cpp:52:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] recon[i] = dalfabet[cuvinte[i][0]]; ^ user.cpp:28:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("text3.in", "r", stdin); ^ user.cpp:29:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("text3.out", "w", stdout); ^