19 lines
625 B
C++
19 lines
625 B
C++
#include <iostream>
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#include <vector>
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using namespace std;
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int main(void) {
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for (int n, k; cin >> n >> k && n * k != 0; ) {
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vector<int> Circle;
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for (int i = 0; i < n; Circle.push_back(++i));
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for (int m = (k - 1) % Circle.size(), t; Circle.size() != 1; ) {
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t = (m - 1 + k) % (Circle.size() - 1);
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t = (t + (t >= m)) % Circle.size();
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Circle[m] = Circle[t];
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Circle.erase(Circle.begin() + t);
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m = (m - (t < m) + k) % Circle.size();
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}
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cout << (n - Circle.front() + 1) % n + 1 << endl;
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}
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return 0;
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}
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