Compilare: main.cpp: In function 'int main()': main.cpp:10:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] fin>>n>>k>>s+1; ~^~ main.cpp:17:23: warning: array subscript has type 'char' [-Wchar-subscripts] if(f[s[dr]]==0) ^ main.cpp:19:22: warning: array subscript has type 'char' [-Wchar-subscripts] f[s[dr++]]++; ^ main.cpp:27:24: warning: array subscript has type 'char' [-Wchar-subscripts] f[s[st]]--; ^ main.cpp:28:27: warning: array subscript has type 'char' [-Wchar-subscripts] if(f[s[st]]==0) ^ main.cpp:9:29: warning: 'Dr' may be used uninitialized in this function [-Wmaybe-uninitialized] int n,k,st,dr,max=-1,St,Dr,i,cate; ^~ main.cpp:9:26: warning: 'St' may be used uninitialized in this function [-Wmaybe-uninitialized] int n,k,st,dr,max=-1,St,Dr,i,cate; ^~