27 lines
557 B
C++
27 lines
557 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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// cout << 512 + 256 + 128 + 64 + 32 + 8 << endl;
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int n = 100;
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int cnt = 0;
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for (int i = 31; i >= 0; i--)
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if (n >> i & 1) cnt++;
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cout << cnt << endl;
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int x = 100;
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cnt = 0;
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while (x) {
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x = x & (x - 1);
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cnt++;
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}
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cout << cnt << endl;
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// 判断一个数字是不是2的整数次方
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int n = 100;
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if (n & (n - 1))
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cout << "NO" << endl;
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else
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cout << "YES" << endl;
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return 0;
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} |