Cod sursa(job #2052488)
| Utilizator | Data | 30 octombrie 2017 17:45:05 | |
|---|---|---|---|
| Problema | Stramosi | Scor | 80 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.58 kb |
#include<vector>
#include<fstream>
using namespace std;
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
int d[250002][32], v[250002];
int n, m, x, y, i, t;
int main()
{
fin>>n>>m;
for(i=1;i<=n;i++)
fin>>d[i][0];
for(t=1;(1<<t)<=n;t++)
for(i=1;i<=n;i++)
d[i][t]=d[d[i][t-1]][t-1];
for(i=2;i<=n;i++)
v[i]=v[i/2]+1;
for(i=1;i<=m;i++)
{
fin>>x>>y;
while(y)
{
x=d[x][v[y]];
y-=(1<<v[y]);
}
fout<<x<<'\n';
}
return 0;
}
