diff --git a/Sorts/rottingOranges.js b/Sorts/rottingOranges.js
new file mode 100644
index 0000000000..2bab9c423d
--- /dev/null
+++ b/Sorts/rottingOranges.js
@@ -0,0 +1,51 @@
+//https://leetcode.com/problems/rotting-oranges/
+
+/* You are given an m x n grid where each cell can have one of three values:
+
+0 representing an empty cell,
+1 representing a fresh orange, or
+2 representing a rotten orange.
+Every minute, any fresh orange that is 4-directionally adjacent to a rotten orange becomes rotten.
+
+Return the minimum number of minutes that must elapse until no cell has a fresh orange. If this is impossible, return -1. */
+
+
+var dx = [-1,0,+1,0];
+var dy = [0,-1,0,+1];
+var orangesRotting = function(grid) {
+ var X = grid[0].length;
+ var Y = grid.length;
+ var queue=[];
+ var map={};
+ var rotten;
+ var ans = 0;
+ for(var x = 0; x < X; x++){ + for(var y = 0; y < Y; y++){ + if(grid[y][x] == 2){ + queue.push(y*X+x); + map[y*X+x]=0; + } + } + } + while((rotten = queue.shift())!=undefined){ + var x = rotten % X; + var y = Math.floor(rotten / X); + for(var i = 0; i < 4; i++){ + var mx = x+dx[i]; + var my = y+dy[i]; + if(mx>= 0 && mx < X && my>= 0 && my <y && grid[my][mx] == 1){
+ grid[my][mx] = 2;
+ queue.push((mx)+(my)*X);
+ map[(mx)+(my)*X] = map[x+y*X]+1;
+ ans = map[mx+my*X];
+ }
+ }
+ }
+ for(var x = 0; x < X; x++){
+ for(var y = 0; y < Y; y++){
+ if(grid[y][x] == 1)
+ return -1;
+ }
+ }
+ return ans;
+};
\ No newline at end of file
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