Compilare: main.cpp: In function 'int main()': main.cpp:93:46: warning: array subscript has type 'char' [-Wchar-subscripts] 93 | while(k1>0&&semn[k1]!='('&&pr[s[i]]<=pr[semn[k1]]) | ~~~^ main.cpp:93:60: warning: array subscript has type 'char' [-Wchar-subscripts] 93 | while(k1>0&&semn[k1]!='('&&pr[s[i]]<=pr[semn[k1]]) | ~~~~~~~^ main.cpp: In function 'long long int calcul(char, long long int, long long int)': main.cpp:18:1: warning: control reaches end of non-void function [-Wreturn-type] 18 | } | ^