Compilare: main.cpp:3:211: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 3 | int t[1000001][8];int x,u,z,p,k,q;long long s;std::ifstream f("cufar.in");void m(){for(u=0; u<=K; u+=2){t[u][0]=2;t[u][7]=1;}for(u=3; u<=K; u+=2){if(t[u][0]==0)for(z=u; z<=K; z+=u){t[z][t[z][7]]=u;t[z][7]++;}}}main(){m();f>>p>>p;for(q=1; q<=p; q++){f>>x>>k;s+=t[x][k-1];}std::ofstream("cufar.out")<<s;} | ^~~~