Compilare: main.cpp: In function 'int termen()': main.cpp:32:6: warning: unused variable 'ok' [-Wunused-variable] bool ok=0; ^~ main.cpp: In function 'int factor()': main.cpp:53:18: warning: array subscript has type 'char' [-Wchar-subscripts] r=fr[c[i]]; ^ main.cpp:51:13: warning: unused variable 'r1' [-Wunused-variable] int r1=c[i]; ^~ main.cpp: In function 'int main()': main.cpp:82:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<strlen(v); i++) ~^~~~~~~~~~ main.cpp:115:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i1=0; i1<strlen(var); i1++) ~~^~~~~~~~~~~~