Compilare: user.cpp: In function ‘void big_sum(char*, char*)’: user.cpp:30:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[++a[0]]=t%10; ^ user.cpp: In function ‘int main()’: user.cpp:53:70: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(; dp[n][0][0]; --dp[n][0][0]) cout<<(int)dp[n][0][dp[n][0][0]]; ^ user.cpp: In function ‘void big_sum(char*, char*)’: user.cpp:31:14: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] t/=10; ^