Create 410-split-array-largest-sum.js

Author: everthis

410-split-array-largest-sum.js

@@ -0,0 +1,34 @@
+/**
+ * @param {number[]} nums
+ * @param {number} m
+ * @return {number}
+ */
+function doable(nums, cuts, max) {
+    let acc = 0
+    for(let num of nums) {
+        if(num > max) return false
+        else if(acc + num <= max) acc += num
+        else {
+            --cuts;
+            acc = num;
+            if(cuts < 0) return false
+        }
+    }
+    return true
+}
+
+
+function splitArray(nums, m) {
+    let left = 0
+    let right = 0
+    for(let num of nums) {
+        left = Math.max(left, num)
+        right += num
+    }
+    while(left < right) {
+        let mid = Math.floor(left + (right - left) / 2)
+        if(doable(nums, m - 1, mid)) right = mid
+        else left = mid + 1 
+    }
+    return left
+}