Compilare: main.cpp: In function 'int main()': main.cpp:43:10: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] a=p+1; ~^~~~ main.cpp:47:14: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<v[b] - v[a-1]<<' '<<a<<' '<<b; ~~~^ main.cpp:47:21: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<v[b] - v[a-1]<<' '<<a<<' '<<b; ~^~