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25 lines
396 B
C++
25 lines
396 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int t;
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long long n, k, f, ans;
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int main() {
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cin >> t;
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while (t--) {
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f = 1;
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ans = 0;
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cin >> n >> k;
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while (f <= k && f < n) {
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ans++;
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f <<= 1;
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}
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if (f < n) {
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ans += (n - f) / k + !!((n - f) % k);
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}
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cout << ans << endl;
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}
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return 0;
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}
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