leetcode495

哈哈哈，我以爲是馮提莫呢！

其實就是區間疊加

class Solution {
public:
    int findPoisonedDuration(vector<int>& timeSeries, int duration) {
        
        int ans = 0;
        int i = 0;
        int n = timeSeries.size();
        
        for(int i = 0;i<n;i++)
        {
            int t1 = timeSeries[i];
            int t2 = t1 + duration-1;
            
            int j = i+1;
            while(j < n && timeSeries[j] <= t2)
            {
                t2 = max(t2, timeSeries[j] + duration - 1 );
                j++;
            }
            ans += t2-t1+1;
            i = j-1;
        }
        return ans;
    }
};