// 875. Koko Eating Bananas #include "leetcode.h" // return minimum integer 'k' such that koko can eat all bananas within 'h' // hours class Solution { public: int minEatingSpeed(vector &piles, int h) { int l = 1, r = 1000000000; while (l < r) { int m = (l + r) / 2, total = 0; for (int p : piles) total += (p + m - 1) / m; if (total > h) l = m + 1; else r = m; } return l; } }; int main() { Solution obj; vector p1 = {3, 6, 7, 11}, p2_3 = {30, 11, 23, 4, 20}; printf("%d\n", obj.minEatingSpeed(p1, 8)); // expect: 4 printf("%d\n", obj.minEatingSpeed(p2_3, 5)); // expect: 30 printf("%d\n", obj.minEatingSpeed(p2_3, 6)); // expect: 23 }