Compilare: main.cpp: In function 'int main()': main.cpp:12:16: warning: 'n' is used uninitialized in this function [-Wuninitialized] for(int i=0;i<n;i++) ~^~ main.cpp:10:20: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized] int st=0,dr=-1,n,k; ^ main.cpp:25:12: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized] s+=v[dq[st]]; ~^~~~~~~~~~~