Cod sursa(job #2521633)

Utilizator andra1782Andra Alazaroaie andra1782 Data 11 ianuarie 2020 11:45:53
Problema Stramosi Scor 80
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.57 kb
#include <stdio.h>
#define MAX 250000
int t[MAX+1][18];
int main(){
  FILE *fin=fopen("stramosi.in","r");
  FILE *fout=fopen("stramosi.out","w");
  int n,m,i,j,p,q,s,p2;

  fscanf(fin,"%d%d",&n,&m);
  for(i=1; i<=n; i++)
    fscanf(fin,"%d",&t[i][0]);
  for(j=1; j<18; j++)
    for(i=1; i<=n; i++)
      t[i][j]=t[t[i][j-1]][j-1];
  for(i=0; i<m; i++){
    fscanf(fin,"%d%d",&q,&p);
    s=q;
    p2=0;
    while(p){
      if(p%2)
        s=t[s][p2];
      p/=2;
      p2++;
    }
    fprintf(fout,"%d\n",s);
  }
  fclose(fin);
  fclose(fout);
  return 0;
}