Compilare: main.cpp: In function 'bool factor()': main.cpp:34:15: warning: unused variable 'val' [-Wunused-variable] int sum=0,val=0; ^~~ main.cpp: In function 'int main()': main.cpp:97:14: warning: array subscript has type 'char' [-Wchar-subscripts] ++v[c]; ^ main.cpp:98:12: warning: array subscript has type 'char' [-Wchar-subscripts] v[c]&=1; ^ main.cpp:59:15: warning: unused variable 'r' [-Wunused-variable] long long r,i,cur=0,cnt=0,inmul,imp=2,k=-1; ^ main.cpp:59:19: warning: unused variable 'cur' [-Wunused-variable] long long r,i,cur=0,cnt=0,inmul,imp=2,k=-1; ^~~ main.cpp:59:25: warning: unused variable 'cnt' [-Wunused-variable] long long r,i,cur=0,cnt=0,inmul,imp=2,k=-1; ^~~ main.cpp:59:31: warning: unused variable 'inmul' [-Wunused-variable] long long r,i,cur=0,cnt=0,inmul,imp=2,k=-1; ^~~~~ main.cpp:59:37: warning: unused variable 'imp' [-Wunused-variable] long long r,i,cur=0,cnt=0,inmul,imp=2,k=-1; ^~~