feat: add solutions to lc problem: No.3032

solution/3000-3099/3033.Modify the Matrix/Solution.cpp

@@ -0,0 +1,19 @@
+class Solution {
+public:
+    vector<vector<int>> modifiedMatrix(vector<vector<int>>& matrix) {
+        int r = matrix.size();
+        int c = matrix[0].size();
+        for (int i = 0; i < c; i++) {
+            int maxs = INT_MIN;
+            for (int j = 0; j < r; j++) {
+                maxs = max(maxs, matrix[j][i]);
+            }
+            for (int j = 0; j < r; j++) {
+                if (matrix[j][i] == -1) {
+                    matrix[j][i] = maxs;
+                }
+            }
+        }
+        return matrix;
+    }
+};