53 lines
977 B
C++
53 lines
977 B
C++
#include <bits/stdc++.h>
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using namespace std;
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typedef long long LL;
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const int N = 110;
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int a[N], al;
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string b[N];
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int bl;
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int main() {
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LL n;
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cin >> n;
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if (n == 0) {
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cout << "00";
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exit(0);
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}
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while (n) {
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int x = n % 2;
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n /= 2;
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a[++al] = x;
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}
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// 补全零
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al = ceil(1.0 * al / 7) * 7;
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for (int i = al; i > 1; i -= 7) {
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string s = "";
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for (int j = i; j > i - 7; j--)
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s = s + to_string(a[j]);
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if (i == 7)
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b[++bl] = "1" + s;
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else
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b[++bl] = "0" + s;
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}
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// 2进制4位一组生成16进制数
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for (int i = bl; i >= 1; i--) {
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// cout << b[i] << endl;
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for (int j = 0; j < b[i].size(); j += 4) {
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int x = (b[i][j] - '0') * 8 + (b[i][j + 1] - '0') * 4 +
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(b[i][j + 2] - '0') * 2 + (b[i][j + 3] - '0');
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if (x >= 10)
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cout << char(x - 10 + 'A');
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else
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cout << x;
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}
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cout << " ";
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}
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return 0;
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} |