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Cod sursa(job #585841)
#include<fstream>
#include<algorithm>
#define Nmax 100003
#define Nrmax 50003
#define INF 0x3f3f3f3f
using namespace std;
int A[Nrmax],B[Nrmax],N,nra,nrb,ta[Nrmax],doza[Nmax],maxim,tb[Nrmax],Maxim;
//doza[i] timpul in care este terminata doza i
//ta[i] timpul in care termina toata treaba procesul i
int heap[Nrmax],heaps[Nrmax];
inline int left_son(int x){return 2*x;}
inline int right_son(int x){return 2*x+1;}
inline int father(int x){return x/2;}
void sift(int x)
{
int son,fiu1,fiu2,ind;
do
{
son = 0;
if(left_son(x)<=nra)
{
son = left_son(x);
fiu1 = heap[left_son(x)];
fiu2 = heap[right_son(x)];
if(right_son(x)<=nra && ta[fiu1] + A[fiu1] > ta[fiu2] + A[fiu2])
son = right_son(x);
}
ind = heap[x];
if(ta[ind] + A[ind] <= ta[heap[son]] + A[heap[son]])
son = 0;
if(son)
{
heap[x] = heap[son];
heap[son] = ind;
x = son;
}
}while(son);
}
void percolate(int x)
{
int aux;
while(father(x) && ta[heap[father(x)]] + A[heap[father(x)]] > ta[heap[x]] + A[heap[x]])
{
aux = heap[father(x)];
heap[father(x)] = heap[x];
heap[x] = aux;
x = father(x);
}
}
void sifts(int x)
{
int son,fiu1,fiu2,ind;
do
{
son = 0;
if(left_son(x)<=nrb)
{
son = left_son(x);
fiu1 = heaps[left_son(x)];
fiu2 = heaps[right_son(x)];
if(right_son(x)<=nrb && tb[fiu1] + B[fiu1] > tb[fiu2] + B[fiu2])
son = right_son(x);
}
ind = heaps[x];
if(tb[ind] + B[ind] <= tb[heaps[son]] + B[heaps[son]])
son = 0;
if(son)
{
heaps[x] = heaps[son];
heaps[son] = ind;
x = son;
}
}while(son);
}
void percolates(int x)
{
int aux;
while(father(x) && tb[heaps[father(x)]] + B[heaps[father(x)]] > tb[heaps[x]] + B[heaps[x]])
{
aux = heaps[father(x)];
heaps[father(x)] = heaps[x];
heaps[x] = aux;
x = father(x);
}
}
void read()
{
ifstream f("fabrica.in");
f>>N>>nra>>nrb;
int i;
for(i=1;i<=nra;++i)
{
f>>A[i];
heap[i] = i;
percolate(i);
}
for(i=1;i<=nrb;++i)
{
f>>B[i];
heaps[i] = i;
percolates(i);
}
f.close();
}
void firstp()
{
int i,pr;
for(i=1;i<=N;++i)
{
pr = heap[1];
ta[pr] += A[pr];
sift(1);
doza[i] = ta[pr];
if(doza[i]>maxim)
maxim = doza[i];
}
}
void secondp()
{
int i,pr;
for(i=1;i<=N;++i)
{
pr = 0;
while(pr!=heaps[1])
{
pr = heaps[1];
if(doza[i] > tb[pr])
{
tb[pr] = doza[i];
sifts(1);
}
}
tb[pr] = max(tb[pr], doza[i]) + B[pr];
sifts(1);
doza[i] = tb[pr];
if(doza[i]>Maxim)
Maxim = doza[i];
}
}
int main()
{
read();
firstp();
secondp();
ofstream g("fabrica.out");
g<<maxim<<" "<<Maxim<<"\n";
g.close();
return 0;
}