leetcode/csharp/0994-rotting-oranges.cs at main · ColstonBod-oy/leetcode · GitHub

Name: leetcode/csharp/0994-rotting-oranges.cs at main · ColstonBod-oy/leetcode · GitHub
Rating: 4.7 (609 reviews)
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publicclassSolution{
publicintOrangesRotting(int[][]grid)
{
if(grid==null||grid[0].Length==0)
return0;

intr=grid.Length,c=grid[0].Length,fresh=0,time=0;

Queue<(int,int)>q=newQueue<(int,int)>();

for(inti=0;i<r;i++)
{
for(intj=0;j<c;j++)
{
if(grid[i][j]==1)
fresh++;
elseif(grid[i][j]==2)
{
q.Enqueue((i,j));
};
}
}

if(fresh==0)
return0;

int[,]dir=newint[,]{{-1,0},{1,0},{0,-1},{0,1}};
while(q.Any())
{
time++;
intsize=q.Count;
for(inti=0;i<size;i++)
{
varcurr=q.Dequeue();
for(intj=0;j<4;j++)
{
introw=curr.Item1+dir[j,0];
intcol=curr.Item2+dir[j,1];

if(row>=0&&row<r&&col>=0&&col<c&&grid[row][col]==1)
{
grid[row][col]=2;
q.Enqueue((row,col));
fresh--;
}
}
}
}

returnfresh==0?time-1:-1;
}}