Cod sursa(job #399591)

Utilizator Bogdan_CCebere Bogdan Bogdan_C Data 20 februarie 2010 18:46:29
Problema Curcubeu Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.46 kb
#include<stdio.h>
#include<stdlib.h>
#define NMAX 1000004
#define FIN "curcubeu.in"
#define FOUT "curcubeu.out"
#define min(a,b) ((a)<(b)) ? (a) : (b)
#define max(a,b)  ((a)>(b)) ? (a) : (b)

using namespace std;


int a[NMAX],b[NMAX],c[NMAX],n,prev[NMAX],t[NMAX],col[NMAX];

int getP(int x)
 {int y,z;
  for(y=x;t[y]!=y;y=t[y]);
  return y;           
             }
void unite(int a,int b)
 {a=getP(a);b=getP(b);
  if(a==b) return;
if(rand()%2)
{t[b]=a;
 if(prev[b]>prev[a])
  prev[a]=prev[b];
            }
else 
 {t[a]=b;
  if(prev[a]>prev[b])
   prev[b]=prev[a];
     }}

int main()
{
    freopen(FIN,"r",stdin);
    freopen(FOUT,"w",stdout);
    scanf("%d %d %d %d",&n,&a[1],&b[1],&c[1]);
    for(int i=2;i<n;i++)
     {a[i]=((long long)a[i-1]*i)%n;
      b[i]=((long long)b[i-1]*i)%n;
      c[i]=((long long)c[i-1]*i)%n;      
            }
    for(int i=1;i<n;i++) 
     {prev[i]=i;
     t[i]=i;
     col[i]=-1;
            }
    for(int i=n-1;i>=1;i--)        
       {
          int l=min(a[i],b[i]);int r=max(a[i],b[i]);
          int pr=getP(l); int p=prev[pr]+1;  
          if(col[l]==-1)   
           {col[l]=c[i];}
         for(;p<=r;)
           {if(col[p]==-1) col[p]=c[i]; 
           unite(p,pr);
           //pr=getP(pr);
            p=prev[pr]+1;
                     } 
            } 
    for(int i=1;i<=n-1;i++)
    if(col[i]==-1) printf("0\n");
    else printf("%d\n",col[i]);            
    return 0;
    }