Cod sursa(job #1180515)

Utilizator cldmeClaudiu Ion cldme Data 30 aprilie 2014 18:37:48
Problema Loto Scor 100
Compilator cpp Status done
Runda lab10d30aprilie2014 Marime 1.15 kb
#include <cstdio>
#include <cstdlib>

#define MAXN 101

struct sum {
  int val;
  int a, b, c;
};

int compare(const void *a, const void *b){
  return (((sum*)a)->val-((sum*)b)->val);
}

int main(){

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

  int N, S, loto[MAXN], spos, found=0;
  int left, right, mid, key;
  int i, j, k;
 static sum V[MAXN*MAXN*MAXN];

 scanf("%d%d", &N, &S);
  for(i=0; i<N; i++)
    scanf("%d", loto+i);

  spos=0;
  for(i=0; i<N; i++)
    for(j=i; j<N; j++)
     for(k=j; k<N; k++){
   V[spos].val=loto[i]+loto[j]+loto[k];
   V[spos].a=loto[i]; V[spos].b=loto[j]; V[spos].c=loto[k];
    spos++;
      }

  qsort(V, spos, sizeof(sum), compare);
  for(i=0; i<spos && !found; i++){
    key=S-V[i].val; left=0; right=spos-1;
    while(left <= right){
      mid=((right-left)>>1)+left;
      if(key == V[mid].val){
    printf("%d %d %d %d %d %d\n", V[i].a, V[i].b, V[i].c, V[mid].a, V[mid].b, V[mid].c);
   found=1;
   break;
     } else if(key<V[mid].val){
   right=mid-1;
      } else {
   left=mid+1;
     }
    }
  }

  if(!found)
    printf("%d\n", -1);

 return 0;

}