Update maximum-trailing-zeros-in-a-cornered-path.cpp

kamyu104 · web-flow · commit 054bdd50633b · 2022-04-18T22:22:29.000+08:00
diff --git a/C++/maximum-trailing-zeros-in-a-cornered-path.cpp b/C++/maximum-trailing-zeros-in-a-cornered-path.cpp
@@ -41,7 +41,7 @@ class Solution {
             }
             array<int, 2> up = {0, 0};
             for (int i = 0; i < size(grid); ++i) {
-                auto right = j ? sub(left[i].back(), left[i][j - 1]) : left[i].back();
+                const auto& right = j ? sub(left[i].back(), left[i][j - 1]) : left[i].back();
                 result = max({result, count(add(left[i][j], up)), count(add(right, up))});
                 up = add(up, factor(grid[i][j]));
                 const auto& down = sub(total, up);

Original file line number	Diff line number	Diff line change
`@@ -41,7 +41,7 @@ class Solution {`
`41`	`41`	`}`
`42`	`42`	`array<int, 2> up = {0, 0};`
`43`	`43`	`for (int i = 0; i < size(grid); ++i) {`
`44`		`- auto right = j ? sub(left[i].back(), left[i][j - 1]) : left[i].back();`
	`44`	`+ const auto& right = j ? sub(left[i].back(), left[i][j - 1]) : left[i].back();`
`45`	`45`	`result = max({result, count(add(left[i][j], up)), count(add(right, up))});`
`46`	`46`	`up = add(up, factor(grid[i][j]));`
`47`	`47`	`const auto& down = sub(total, up);`