Compilare: main.cpp: In function 'int main()': main.cpp:94:46: warning: array subscript has type 'char' [-Wchar-subscripts] 94 | while(k1>0&&semn[k1]!='('&&pr[s[i]]<=pr[semn[k1]]) | ~~~^ main.cpp:94:60: warning: array subscript has type 'char' [-Wchar-subscripts] 94 | 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:14:1: warning: control reaches end of non-void function [-Wreturn-type] 14 | } | ^