Compilare: main.cpp: In function 'int main()': main.cpp:53:40: warning: array subscript has type 'char' [-Wchar-subscripts] while (k1>0 && pr[ st1[k1] ] >= pr[s[i]]) { ^ main.cpp:53:52: warning: array subscript has type 'char' [-Wchar-subscripts] while (k1>0 && pr[ st1[k1] ] >= pr[s[i]]) { ^ main.cpp: In function 'int operatie(char, int, int)': main.cpp:19:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:23:11: warning: array subscript is above array bounds [-Warray-bounds] pr['+']=2; ~~~~~~^ main.cpp:24:11: warning: array subscript is above array bounds [-Warray-bounds] pr['-']=2; ~~~~~~^ main.cpp:25:11: warning: array subscript is above array bounds [-Warray-bounds] pr['(']=1; ~~~~~~^ main.cpp:26:19: warning: array subscript is above array bounds [-Warray-bounds] pr['*']=pr['/']=3; ~~~~~~^ main.cpp:26:11: warning: array subscript is above array bounds [-Warray-bounds] pr['*']=pr['/']=3; ~~~~~~^