Pagini recente » Cod sursa (job #1302333) | Cod sursa (job #2151886) | Cod sursa (job #2369610) | Cod sursa (job #1721359) | Cod sursa (job #2136528)
#include <iostream>
#include <fstream>
using namespace std;
typedef long long ll;
ifstream in("farfurii.in");
ofstream out("farfurii.out");
const int NMAX = 1e5;
ll n, k;
ll aint[1 + 4 * NMAX];
void add(ll node, ll pos, ll le, ll ri) {
ll mid = (le + ri) / 2;
if(le == ri)
aint[node] = 1;
else {
add(2 * node, pos, le, mid);
add(2 * node + 1, pos, mid + 1, ri);
aint[node] += aint[2 * node] + aint[2 * node + 1];
}
}
void query(ll node, ll pos, ll le, ll ri) {
ll mid = (le + ri) / 2;
if(le == ri) {
aint[node] = 0;
out << le << ' ';
} else {
if(pos <= aint[2 * node])
query(2 * node, pos, le, mid);
else
query(2 * node + 1, pos - aint[2 * node], mid + 1, ri);
aint[node] = aint[2 * node] + aint[2 * node + 1];
}
}
int main()
{
in >> n >> k;
add(1, 1, 1, n);
for(ll i = n - 1; i >= 0; i--) {
if(k <= i * (i - 1) / 2)
query(1, 1, 1, n);
else {
query(1, k - i * (i - 1) / 2 + 1, 1, n);
k = i * (i - 1) / 2;
}
}
in.close();
out.close();
return 0;
}