Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<fstream> ^~~~~~ main.cpp:2:106: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] using namespace std;ifstream f("caluti.in");ofstream g("caluti.out");long long t,n,p,x,k,v[1<<17],i;main(){f>>t;while(t--){f>>n>>k>>p;for(i=1;i<=n;++i)f>>x,v[i]=(i>k?max(v[i-k],x)+p:x+p);g<<v[n]<<'\n';}} ^