Archived
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
#include<bits/stdc++.h>
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using namespace std;
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int n;
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long long m;
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long long a[500005];
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long long qsum[500005];
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bool checkb(int mid, long long now, int tot) {
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return mid * now - (qsum[tot] - qsum[tot - mid]) <= m;
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}
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long long check(long long now, int tot) {
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long long nowm = m;
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long long ans = 0;
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int l = 1, r = tot, mid = (l + r) >> 1;
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while(l < r) {
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mid = (l + r) >> 1;
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if(checkb(mid, now, tot)) {
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l = mid + 1;
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} else {
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r = mid;
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}
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}
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while(!checkb(mid, now, tot) && mid >= 1) mid--;
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while(checkb(mid + 1, now, tot) && mid + 1 <= tot) mid++;
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return mid;
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}
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int main() {
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freopen("crystal.in", "r", stdin);
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freopen("crystal.out", "w", stdout);
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scanf("%d%lld", &n, &m);
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for(int i = 1; i <= n; ++i) scanf("%lld", &a[i]);
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sort(a + 1, a + n + 1);
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for(int i = 1; i <= n; ++i) qsum[i] = qsum[i - 1] + a[i];
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long long ans = 0;
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for(int i = 1; i <= n; ++i) {
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if(a[i + 1] == a[i]) continue;
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ans = max(ans, check(a[i], i));
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// printf("%d %lld\n", i, check(a[i], i));
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}
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printf("%lld\n", ans);
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return 0;
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}
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/*
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g++ crystal/crystal.cpp -o crystal/crystal -std=c++14 -O2 -static -Wall && cp crystal/crystal ~ && chmod +x ~/crystal && ~/crystal
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O(n log n)
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45pts
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*/ |