14 lines
189 B
C++
14 lines
189 B
C++
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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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int t, n;
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int x, y;
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cin >> t;
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while (t--) {
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cin >> n;
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cout << to_string((1<<((n>>1)+1))-1<<n%2) << endl;
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}
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return 0;
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}
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