Compilare: main.cpp: In function 'int getFact()': main.cpp:62:22: warning: array subscript has type 'char' [-Wchar-subscripts] 62 | while(si < sn && s[si] >= '0' && s[si] <= '9'){ | ^~ main.cpp:62:38: warning: array subscript has type 'char' [-Wchar-subscripts] 62 | while(si < sn && s[si] >= '0' && s[si] <= '9'){ | ^~ main.cpp:64:12: warning: array subscript has type 'char' [-Wchar-subscripts] 64 | x += s[si] - '0'; | ^~ main.cpp: In function 'void solve(int, int, int, int)': main.cpp:72:10: warning: array subscript has type 'char' [-Wchar-subscripts] 72 | if(s[si] == '*'){ | ^~ main.cpp:82:17: warning: array subscript has type 'char' [-Wchar-subscripts] 82 | } else if(s[si] >= '0' && s[si] <= '9'){ | ^~ main.cpp:82:33: warning: array subscript has type 'char' [-Wchar-subscripts] 82 | } else if(s[si] >= '0' && s[si] <= '9'){ | ^~ main.cpp:84:19: warning: array subscript has type 'char' [-Wchar-subscripts] 84 | char ch = s[si]; | ^~ main.cpp:83:11: warning: unused variable 'x' [-Wunused-variable] 83 | int x = getFact(), i, j; | ^ main.cpp:93:23: warning: array subscript has type 'char' [-Wchar-subscripts] 93 | r[sti][stj] = s[si]; | ^~ main.cpp: In function 'int main()': main.cpp:123:10: warning: array subscript has type 'char' [-Wchar-subscripts] 123 | if(s[si] >= '0' && s[si] <= '9') | ^~ main.cpp:123:26: warning: array subscript has type 'char' [-Wchar-subscripts] 123 | if(s[si] >= '0' && s[si] <= '9') | ^~ main.cpp:125:15: warning: array subscript has type 'char' [-Wchar-subscripts] 125 | else if(s[si] != '*') | ^~