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Cod sursa(job #167665)
#include<stdio.h>
#include<stdlib.h>
#define NMAX 101
int n;
int S, v[NMAX]; bool found[100000000];
int i,j,k,st=1,dr,x;
struct data {int a,b,c,val;} trei[NMAX*NMAX*NMAX];
int compare(const void *a, const void *b)
{
data t1= *(data*)a, t2=*(data*)b;
if( t1.val > t2.val ) return 1;
if( t1.val < t2.val ) return -1;
return 0;
}
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++) { x = v[i] + v[j]+ v[k];
if(found[x]==0)
{trei[++dr].val=x;
trei[dr].a = v[i];
trei[dr].b = v[j];
trei[dr].c = v[k]; } found[x]=1;}
qsort(trei,dr+1,sizeof(trei[0]),compare);
while(st<=dr)
{
for(; trei[st].val + trei[dr].val > S && st<dr; dr--);
if( trei[st].val + trei[dr].val == S)
{
printf("%d %d %d %d %d %d",
trei[st].a,trei[st].b,trei[st].c,
trei[dr].a,trei[dr].b,trei[dr].c);
printf("\n"); return 0;
}
if(st==dr) break;
for(; trei[st].val + trei[dr].val < S && st<dr; st++);
}
printf("-1\n");
return 0; }