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同样是位操作/* PKU 2309 Author : Yizer Algorithm : Math */ #include <iostream> using namespace std; int main() { int t; cin >> t; while (t--) { int n; cin >> n; int tmp = n & -n; int ans1 = n-tmp + 1; int ans2 = n+tmp - 1; cout << ans1 << ' ' << ans2 << endl; } return 0; } Followed by:
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