Compilare: main.cpp:2:217: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 2 | int x,u,z,p,k,q,K=1000000,t[1000001][8];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;while(p--){f>>x>>k;s+=t[x][k-1];}std::ofstream("cufar.out")<<s;} | ^~~~