Compilare: user.cpp: In function ‘int main()’: user.cpp:23:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] mi[i][m]=a[s[i]][s[m]]; ^ user.cpp:23:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] mi[i][m]=a[s[i]][s[m]]; ^ user.cpp:28:61: warning: array subscript has type ‘char’ [-Wchar-subscripts] mi[i][m]=min(mi[i][m],mi[i+1][j-1]+mi[j+1][m]+a[s[i]][s[j]]); ^ user.cpp:28:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] mi[i][m]=min(mi[i][m],mi[i+1][j-1]+mi[j+1][m]+a[s[i]][s[j]]); ^ user.cpp:10:18: warning: unused variable ‘t’ [-Wunused-variable] unsigned n,i,j,q,t,m; ^ /tmp/cc3o2Rjx.o: In function `main': user.cpp:(.text.startup+0x62): warning: the `gets' function is dangerous and should not be used.