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- /*#include <iostream>
- #include <string>
- #include <map>
- using namespace std;
- int main()
- {
- int age, i, n;
- string s;
- map<int, int> a;
- cin >> n;
- for (i = 0; i < n; i++)
- {
- cin >> age;
- a[age]++;
- }
- map<string, int>::iterator iter;
- for (iter = a.begin(); iter != a.end(); iter++)
- cout << iter->first << " " << iter->second << endl;
- system("pause");
- return 0;
- }*/
- #define _USE_MATH_DEFINES
- #include <iostream>
- #include <string>
- #include <map>
- #include <set>
- #include <algorithm>
- #include <vector>
- #include <stdio.h>
- #include <cmath>
- #include <math.h>
- #include <queue>
- #include <stack>
- #include <climits>
- #include <deque>
- #include <ctime>
- using namespace std;
- typedef long long ll;
- typedef unsigned long long ull;
- typedef unsigned int ui;
- #define mh() make_heap()
- #define poph() pop_heap()
- #define pushh() push_heap()
- #define sor(n) n.begin(), n.end()
- #define rsor(n) n.rbegin(), n.rend()
- #define mp make_pair
- #define files freopen("input.txt", "rt", stdin); freopen("output.txt", "wt", stdout)
- #define p(T) pair<T,T>
- #define znac(l) abs(l)/l
- const ll ok = ll(1e9 + 7);
- int main()
- {
- #ifndef ONLINE_JUDGE
- files;
- #endif
- ll n, k;
- cin >> n >> k;
- ll p = 1;
- ll sc = 0;
- n -= p;
- while (p<=k&&n>0)
- {
- n -= p;
- sc++;
- p *= 2;
- }
- if (n >0)
- sc += n / k + bool(n%k);
- cout << sc;
- return 0;
- }
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