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23 lines
496 B
C++
23 lines
496 B
C++
#include <iostream>
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#include <map>
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using namespace std;
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map<int, int> M;
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int main()
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{
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int n, k;
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cin >> n >> k;
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for (int i = 0, j, x; i < n; i++)
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{
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cin >> x;
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for (j = 1; j * j < x; j++) if (x % j == 0) M[j]++, M[x / j]++;
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if (j * j == x) M[j]++;
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}
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for (map<int, int>::reverse_iterator rite = M.rbegin(); rite != M.rend(); rite++)
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if (rite->second >= k)
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{
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cout << rite->first;
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break;
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}
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return 0;
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}
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