Compilare: main.cpp: In function 'int main()': main.cpp:23:20: warning: array subscript has type 'char' [-Wchar-subscripts] 23 | nr[c1]++; | ^~ main.cpp:26:28: warning: array subscript has type 'char' [-Wchar-subscripts] 26 | nr[c1]--; | ^~ main.cpp:33:23: warning: array subscript has type 'char' [-Wchar-subscripts] 33 | if(nr[c1]<nr[c2]) | ^~ main.cpp:33:30: warning: array subscript has type 'char' [-Wchar-subscripts] 33 | if(nr[c1]<nr[c2]) | ^~ main.cpp:35:24: warning: array subscript has type 'char' [-Wchar-subscripts] 35 | nr[c1]++; | ^~ main.cpp:38:28: warning: array subscript has type 'char' [-Wchar-subscripts] 38 | nr[c1]--; | ^~ main.cpp:45:24: warning: array subscript has type 'char' [-Wchar-subscripts] 45 | nr[c2]++; | ^~ main.cpp:48:28: warning: array subscript has type 'char' [-Wchar-subscripts] 48 | nr[c2]--; | ^~ main.cpp:55:12: warning: array subscript has type 'char' [-Wchar-subscripts] 55 | nr[c1]++; | ^~ main.cpp:56:55: warning: array subscript has type 'char' [-Wchar-subscripts] 56 | if(nr['B']-nr['F']>k || nr['F']-nr['B']>k) nr[c1]--; | ^~ main.cpp:57:12: warning: array subscript has type 'char' [-Wchar-subscripts] 57 | nr[c2]++; | ^~ main.cpp:58:55: warning: array subscript has type 'char' [-Wchar-subscripts] 58 | if(nr['B']-nr['F']>k || nr['F']-nr['B']>k) nr[c2]--; | ^~