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Cod sursa(job #70739)
#include<stdio.h>
int n,m,w[300000],a,c,q,h;
void rezolvare(int &e, int &q)
{
int o=0;
while (q!=c-1 && w[e]!=0)
{
if (q+1==c-1 || w[w[e]]==0)
{
printf("%d\n",w[w[e]]);
o=1;
break;
}
if (q+2==c-1 || w[w[w[e]]]==0)
{
printf("%d\n",w[w[w[e]]]);
o=1;
break;
}
if (q+3==c-1 || w[w[w[w[e]]]]==0)
{
printf("%d\n",w[w[w[w[e]]]]);
o=1;
break;
}
if (q+4==c-1 || w[w[w[w[w[e]]]]]==0)
{
printf("%d\n",w[w[w[w[w[e]]]]]);
o=1;
break;
}
q+=5;
e=w[w[w[w[w[w[e]]]]]];
}
if (o==0)
printf("%d\n",w[e]);
}
void citire()
{
freopen("stramosi.in","r",stdin);
scanf("%d%d", &n, &m);
for (long i=1; i<=n; i++)
scanf("%d", &w[i]);
for (long i=1; i<=m; i++)
{
scanf("%d%d", &a, &c);
h=0;
rezolvare(a,h);
}
fclose(stdin);
}
int main()
{
freopen("stramosi.out","w",stdout);
citire();
fclose(stdout);
return 0;
}