Compilare: main.cpp: In function 'int main()': main.cpp:23:41: warning: array subscript has type 'char' [-Wchar-subscripts] 23 | for(int i=0;s[i]!=0;++i)ap_s[s[i]]++; | ~~~^ main.cpp:24:41: warning: array subscript has type 'char' [-Wchar-subscripts] 24 | for(int i=0;t[i]!=0;++i)ap_t[t[i]]++; | ~~~^ main.cpp:29:24: warning: iteration 127 invokes undefined behavior [-Waggressive-loop-optimizations] 29 | if(2*ap_s[i]==ap_t[i]&&ap_s[i]!=0)++k; | ~~~~~~^ main.cpp:27:22: note: within this loop 27 | for(int i=1;i<=128;++i) | ~^~~~~