30 lines
522 B
C++
30 lines
522 B
C++
// Ferris Wheel
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#include<bits/stdc++.h>
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using namespace std;
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using ll = long long;
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int main() {
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ll n; cin >> n;
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ll x; cin >> x;
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vector<ll> ps(n);
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for (auto &e: ps) cin >> e;
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ll count = 0;
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ll min = 0;
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ll max = n-1;
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std::sort(ps.begin(), ps.end());
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while (min <= max) {
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if (ps[min] + ps[max] <= x) {
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max--;
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min++;
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count++;
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} else {
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max --;
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count++;
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}
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}
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cout << count << endl;
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return 0;
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}
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