Compilare: main.cpp: In function 'int main()': main.cpp:27:33: warning: 'pos1' may be used uninitialized in this function [-Wmaybe-uninitialized] int maxdiff1=-1,maxdiff0=-1,pos1,pos0; ^~~~ main.cpp:27:38: warning: 'pos0' may be used uninitialized in this function [-Wmaybe-uninitialized] int maxdiff1=-1,maxdiff0=-1,pos1,pos0; ^~~~