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Cod sursa(job #66819)
#include <cstdio>
#include <vector>
#include <algorithm>
#define fin "tricouri.in"
#define fout "tricouri.out"
using namespace std;
int N,M,K,P;
int bst1[32][32],bst2[32][32];
vector <int> aux[20][20],v[21];
int main() {
int i,j,k,tmp,r;
freopen(fin,"r",stdin); freopen(fout,"w",stdout);
scanf("%d%d",&N,&M);
for (i=0;i<N;++i)
{
scanf("%d",&tmp);
for (j=2;j<21;++j) {
r=tmp%j;
aux[j][r].push_back(tmp);
k=(int)aux[j][r].size()-1;
while (k!=0 && aux[j][r][k]>aux[j][r][k-1]) {
swap(aux[j][r][k],aux[j][r][k-1]);
--k;
}
if (aux[j][r].size()>5)
aux[j][r].erase(aux[j][r].end()-1,aux[j][r].end());
}
}
for (j=0;j<21;++j) v[j].clear();
for (j=2;j<21;++j)
for (i=0;i<20;++i)
for (k=0;k<(int)aux[j][i].size();++k)
v[j].push_back(aux[j][i][k]);
/*
while ( M-- )
{
scanf("%d%d",&K,&P);
for (j=0;j<32;++j)
for (k=0;k<32;++k)
bst1[j][k]=bst2[j][k]=0;
for (i=0;i<(int)v[P].size();++i)
{
for (j=0;j<P;++j)
for (k=1;k<K;++k)
if (bst1[j][k])
bst2[(j+v[P][i])%P][k+1]=bst1[j][k]+v[P][i];
bst2[v[P][i]%P][1]=v[P][i];
for (j=0;j<P;++j)
for (k=1;k<=K;++k) {
bst1[j][k]=max(bst1[j][k],bst2[j][k]);
bst2[j][k]=0;
}
}
if (!bst1[0][K]) bst1[0][K]=-1;
printf("%d\n",bst1[0][K]);
}
*/
return 0;
}