Create 1380-lucky-numbers-in-a-matrix.js

Author: everthis

1380-lucky-numbers-in-a-matrix.js

@@ -0,0 +1,32 @@
+/**
+ * @param {number[][]} matrix
+ * @return {number[]}
+ */
+const luckyNumbers  = function(matrix) {
+  const m = matrix.length, n = matrix[0].length
+  const res = []
+  for(let i = 0; i < m; i++) {
+    let tmp = [i, 0, matrix[i][0]]
+    for(let j = 1; j < n; j++) {
+      if(matrix[i][j] < tmp[2]) {
+        tmp = [i, j, matrix[i][j]]
+      }
+    }
+    res.push(tmp)
+  }
+  
+  const ans = []
+  for(let [r, c, v] of res) {
+    let found = false
+    for(let i = 0; i < m; i++) {
+      if(i !== r && matrix[i][c] > v) {
+        found = true
+        break
+      }
+    }
+    
+    if(found === false) ans.push(v)
+  } 
+  
+  return ans
+};