Cod sursa(job #227823)

Utilizator hasegandaniHasegan Daniel hasegandani Data 5 decembrie 2008 16:50:28
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.55 kb
#include<stdio.h>

#define nmax 1<<18

int t[18][nmax];


int main()
{
    FILE *f=fopen("stramosi.in","r"),*g=fopen("stramosi.out","w");  
    int n,m;
    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;
}