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CanPlaceFlowers.txt
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CanPlaceFlowers.txt
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class Solution {
public:
bool canPlaceFlowers(vector<int>& flowerbed, int n)
{
if(n==0)
return true;
int l=flowerbed.size();
if(flowerbed.size()==1)
{
if(flowerbed[0]==0)
return true;
else
return false;
}
if(flowerbed.size()==2)
{
if(flowerbed[0]==0 && flowerbed[1]==0 && n==1)
return true;
else
return false;
}
if((flowerbed[0]==0 && flowerbed[1]==0 && flowerbed[2]==1) || (flowerbed[0]==0 && flowerbed[1]==0 && flowerbed[2]==0))
{
flowerbed[0]=1;
n--;
}
int j=1;
while(j<=flowerbed.size()-2 && n!=0)
{
if(flowerbed[j-1]==0 && flowerbed[j]==0 && flowerbed[j+1]==0)
{
flowerbed[j]=1;
n--;
}
j++;
}
if((flowerbed[l-3]==1 && flowerbed[l-2]==0 && flowerbed[l-1]==0 && n!=0) || (flowerbed[l-3]==0 && flowerbed[l-2]==0 && flowerbed[l-1]==0 && n!=0))
{
flowerbed[l-1]=1;
n--;
}
if(n!=0)
{
return false;
}
return true;
}
};