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#include <iostream> using namespace std; double BinPow(int a, int n) { double res = 1; while (n) { if (n&1) { res *= a; --n; } else { a *= a; n >>= 1; } } return res; } int main() { int a = 6, n = 4; cout << (BinPow(a,n)) << endl; return 0; }
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