Cod sursa(job #167667)

Utilizator pandaemonAndrei Popescu pandaemon Data 29 martie 2008 21:42:58
Problema Loto Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.2 kb
#include<stdio.h>
#include<stdlib.h>
#define NMAX 101

int n;
int S, v[NMAX], trei[NMAX * NMAX * NMAX];
int i,j,k,st=1,dr;

void pivot(int s,int d,int &m)
{
 int ps=0,pd=1,aux;
 while(s<d)
 {if(trei[s]>=trei[d]) {aux=trei[s]; trei[s]=trei[d]; trei[d]=aux;
		       aux=ps; ps=pd; pd=aux;} s+=ps; d-=pd;}
m=s;}



int Q_Sort(int s,int d)
{ int m;
  if(s<d) {pivot(s,d,m);
	  Q_Sort(s,m-1);
	  Q_Sort(m+1,d);} }


int scout(int val)
{
  for(i=1; i<=n; i++)
  for(j=1; j<=n; j++)
  for(k=1; k<=n; k++)

  if(v[i] + v[j] + v[k] == val)
		      { printf("%d %d %d ",v[i],v[j],v[k]);
			return 0; }

return -1;}


int main()
{
  freopen("loto.in","r",stdin);
  freopen("loto.out","w",stdout);

  scanf("%d %d",&n,&S);

  for(i=1; i<=n; i++) scanf("%d",&v[i]);

  for(i=1; i<=n; i++)
  for(j=1; j<=n; j++)
  for(k=1; k<=n; k++) trei[++dr] = v[i] + v[j]+ v[k];

  Q_Sort(1,dr);

  while(n)
  {

  for(; trei[st] + trei[dr] > S && st<dr; dr--);


     if( trei[st] + trei[dr] == S)
     { scout(trei[st]); scout(trei[dr]); printf("\n"); return 0;}

     if(st==dr) break;

  for(; trei[st] + trei[dr] < S && st<dr; st++);

  }

  printf("-1\n");

  return 0; }