Compilare: user.cpp: In function ‘int main()’: user.cpp:33:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(s1[i]==s2[j]) ^ user.cpp:33:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(s1[i]==s2[j]) ^ user.cpp:34:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] c=1,best[i][j]=1+best[i-1][j-1]; ^ user.cpp:34:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] c=1,best[i][j]=1+best[i-1][j-1]; ^ user.cpp:36:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] best[i][j]=maxim(best[i-1][j],best[i][j-1]); ^ user.cpp:36:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] best[i][j]=maxim(best[i-1][j],best[i][j-1]); ^ user.cpp:36:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] best[i][j]=maxim(best[i-1][j],best[i][j-1]); ^ user.cpp:36:53: warning: array subscript has type ‘char’ [-Wchar-subscripts] best[i][j]=maxim(best[i-1][j],best[i][j-1]); ^ /tmp/cc2HgPm1.o: In function `main': user.cpp:(.text.startup+0x51): warning: the `gets' function is dangerous and should not be used.