41 lines
621 B
C++
41 lines
621 B
C++
#include <bits/stdc++.h>
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#include <ios>
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using namespace std;
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int a[100000];
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int n, m;
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int checker(int k) {
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int ret = 0;
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for (int i = 0; i < n; i++) {
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ret += k / a[i];
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}
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return ret;
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}
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int main() {
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ios_base::sync_with_stdio(false);
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cin.tie(NULL);
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freopen("p145sumg.inp", "r", stdin);
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cin >> n >> m;
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int l = 1, r;
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for (int i = 0; i < n; i++) {
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cin >> a[i];
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r = max(r, a[i]);
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}
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r *= m;
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int res = r;
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while (l < r) {
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int mid = (l + r) / 2;
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if (checker(mid) >= m) {
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r = mid;
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res = min(mid, res);
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} else {
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l = mid + 1;
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}
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}
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cout << res << "\n";
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}
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