Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:2:71: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] using namespace std;ifstream f("proc.in");ofstream g("proc.out");main(){long long n,k,P,u,t,o,w,r=-1,p,i;f>>n>>k>>P;for(p=30;p>=0;--p){for(u=r+(1<<p),t=o=0,i=1;i<=P;++i)w=u/i,o+=w&1,t+=w-(w&1);if(t<(n-k)*2||(o+t<2*n-k))r+=(1<<p);}g<<r+1;} ^