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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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//将十进制转为二进制，并输出每个二进制位的值是0还是1
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int n = 13;
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for (int i = 3; i >= 0; i--)
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cout << (n >> i & 1) << " ";
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return 0;
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}
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