Compilare: user.cpp: In function ‘int main()’: user.cpp:8:25: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘int*’ [-Wformat=] while(scanf("%c",&ch)!=EOF) ^ user.cpp:7:9: warning: unused variable ‘n’ [-Wunused-variable] int n,i,u=0,st,dr,ok=1,care,cent,ch,nrmin; ^ user.cpp:76:26: warning: ‘cent’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=cent+1;i<=2*cent-1;i++) ^ user.cpp:64:17: warning: ‘nrmin’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (nrmin>2*i-u) ^