Compilare: main.cpp: In function 'int main()': main.cpp:25:15: warning: array subscript has type 'char' [-Wchar-subscripts] 25 | if(fr[char(i)]!=0) | ^~~~~~~ main.cpp:29:15: warning: array subscript has type 'char' [-Wchar-subscripts] 29 | if(fr[char(i)]>=2) | ^~~~~~~ main.cpp:25:22: warning: array subscript 65 is above array bounds of 'int [27]' [-Warray-bounds] 25 | if(fr[char(i)]!=0) | ~~~~~~~~~~^ main.cpp:6:13: note: while referencing 'fr' 6 | int n,cnt,c,fr[27]={0}; | ^~