Compilare: user.cpp: In function ‘int main()’: user.cpp:14:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[c[1]] = 1; ^ user.cpp:17:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] int k=s[c[i]],l=v[c[i]]; ^ user.cpp:17:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] int k=s[c[i]],l=v[c[i]]; ^ user.cpp:21:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (l - 1 || k - 1) s[c[i]] = k;v[c[i]] = l; ^ user.cpp:21:47: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (l - 1 || k - 1) s[c[i]] = k;v[c[i]] = l; ^ user.cpp:9:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("palalila2.in","r",stdin); ^ user.cpp:10:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("palalila2.out","w",stdout); ^ user.cpp:11:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",c+1); ^