class Solution {
public int findPoisonedDuration(int[] timeSeries, int duration) {
int n=timeSeries.length;
int sum=0;
for(int i=1;i<n;i++){
if(timeSeries[i]-timeSeries[i-1]>=duration){
sum+=duration;
}else{
sum+=timeSeries[i]-timeSeries[i-1];
}
}
return sum+duration;
}
}