Cod sursa(job #639700)
Utilizator | Cioboata Ioan Liviu cioboata.i | Data | 23 noiembrie 2011 19:52:49 |
---|---|---|---|
Problema | Stramosi | Scor | 80 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.52 kb |
#include<cstdio>
int a[18][250001];
int stram(int x,int lung)
{
int i=0;
while(lung)
{
if(lung%2!=0)
x=a[i][x];
lung/=2;
i++;
}
return x;
}
int main()
{
freopen("stramosi.in","r",stdin);
freopen("stramosi.out","w",stdout);
int m,n,x,lung,i,j;
scanf("%d%d",&n,&m);
for(i=1;i<=n;i++)
scanf("%d",&a[0][i]);
for(i=1;(1<<i)<=n;i++)
for(j=1;j<=n;j++)
a[i][j]=a[i-1][a[i-1][j]];
for(i=1;i<=m;i++)
{
scanf("%d%d",&x,&lung);
printf("%d\n",stram(x,lung));
}
return 0;
}