diff --git "a/notes/Leetcode \351\242\230\350\247\243.md" "b/notes/Leetcode \351\242\230\350\247\243.md"
index bdf03c8..7358ece 100644
--- "a/notes/Leetcode \351\242\230\350\247\243.md"	
+++ "b/notes/Leetcode \351\242\230\350\247\243.md"	
@@ -2504,9 +2504,9 @@ public int minPathSum(int[][] grid) {
     int[] dp = new int[n];
     for (int i = 0; i < m; i++) {
         for (int j = 0; j < n; j++) {
-            if (i == 0) {
+            if (i == 0 && j != 0) {
                 dp[j] = dp[j - 1];
-            } else {
+            } else if (j != 0) {
                 dp[j] = Math.min(dp[j - 1], dp[j]);
             }
             dp[j] += grid[i][j];