1296. Divide Array in Sets of K Consecutive Numbers
Given an array of integers nums and a positive integer k, check whether it is possible to divide this array into sets of k consecutive numbers.
Return true if it is possible. Otherwise, return false.
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| class Solution {
public:
bool isPossibleDivide(vector<int>& nums, int k) {
if(nums.size() % k) return false;
map<int, int> count;
for(auto n : nums) count[n]++;
while(!count.empty()) {
auto be = count.begin();
if(be->second) {
auto nxt = next(be);
for(int i = 1; i < k; i++,nxt++) {
if(nxt == count.end()) return false;
if(nxt->first != be->first + i) return false;
if(nxt->second < be->second)return false;
nxt->second -= be->second;
}
}
count.erase(be);
}
return true;
}
};
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