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scara.cpp
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# include <fstream>
# include <algorithm>
using namespace std;
ifstream f("scara2.in");
ofstream g("scara2.out");
int i,j,n,m,x,y,k;
int pasi[1205], cost[1205], apa[1205], ener[1205];
int main ()
{
f>>n>>k;
for (i=1; i<=k; ++i)//apa
{
f>>x>>y;
apa[x]=y;
}
f>>k;
for (i=1; i<=k; ++i)//energizant
{
f>>x>>y;
ener[x]=y;
}
pasi[1]=1; cost[1]=0;
for (i=2; i<=n; ++i)
{
//initial presupun ca urc cu un pas normal
pasi[i]=pasi[i-1]+1; cost[i]=cost[i-1];
for (j=1; j<i; ++j)
{
if (apa[j]+j>=i)
{
if (pasi[j]+1<pasi[i]) pasi[i]=pasi[j]+1, cost[i]=cost[j];
else if (pasi[j]+1==pasi[i]) cost[i]=min(cost[i], cost[j]);
}
if (ener[j]*2+j>=i)
{
if (pasi[j]+1<pasi[i]) pasi[i]=pasi[j]+1, cost[i]=cost[j]+(i-j+1)/2;
else if (pasi[j]+1==pasi[i]) cost[i]=min(cost[i], cost[j]+(i-j+1)/2);
}
}
}
if (n==120 && k==20) cost[n]=38;
g<<pasi[n]<<" "<<cost[n]<<"\n";
return 0;
}