Cod sursa(job #227819)

Utilizator hasegandaniHasegan Daniel hasegandani Data 5 decembrie 2008 16:46:14
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.54 kb
#include<stdio.h>

#define nmax 250001

int t[20][nmax],m,n;
FILE *f=fopen("stramosi.in","r"),*g=fopen("stramosi.out","w");

int main()
{
    fscanf(f,"%d%d",&n,&m);
    for(int i=1;i<=n;++i)
        fscanf(f,"%d",&t[0][i]);
    for (int i=1;(1<<i) <= n;++i)
    for (int j=1;j<=n;++j)
    t[i][j] = t[i-1][t[i-1][j]];
    for (int i=1;i<=m;++i)
    {
        int a,b;
        fscanf(f,"%d%d",&a,&b);
        for (int i=0;(1<<i) <= b;++i)
        if ((1<<i)&b) a = t[i][a];
        fprintf(g,"%d\n",a);
    }
    return 0;
}