Cod sursa(job #1373866)
| Utilizator | Data | 4 martie 2015 21:02:40 | |
|---|---|---|---|
| Problema | Stramosi | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.54 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("stramosi.in");
ofstream g("stramosi.out");
int n,m,x,y,dp[20][250005];
int main()
{
f>>n>>m;
for(int i=1; i<=n; i++)
f>>dp[0][i];
for(int i=1; (1<<i)<=n; i++)
for(int j=1; j<=n; j++)
dp[i][j]=dp[i-1][dp[i-1][j]];
for(int i=1; i<=m; i++)
{
f>>x>>y;
for(int i=0; (1<<i)<=y; i++)
{
if(y&(1<<i))x=dp[i][x];
if(x==0)break;
}
g<<x<<"\n";
}
return 0;
}
