不理解這道題為什么是medium= =，挺簡單的，乏善可陳。

我的解法

class Solution {
public:
    int findPoisonedDuration(vector<int>& timeSeries, int duration) {
        int output = 0;
        if (timeSeries.size() > 0){
            for (int i = 1; i < timeSeries.size(); i ++){
                output += timeSeries[i] - timeSeries[i-1] >= duration ? duration : timeSeries[i] - timeSeries[i-1] ; 
            }
            output += duration;
        }
        
        return output;
    }
};

他人解法

竊以為沒自己好。

lass Solution {
public:
    int findPosisonedDuration(vector<int>& ts, int duration) {
        int tp = 0, pe = 0;
        for(int i=0; i<ts.size(); ++i){
            tp += duration - (ts[i] < pe) *(pe - ts[i]);
            pe = ts[i] + duration;
        }
        return tp;
    }
};