diff --git a/main.cpp b/main.cpp
index 60468b3..df0803f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -7,8 +7,8 @@
 #define W 15 /* ancho y alto del laberinto -1 */
 
 struct maze { /* Distancias de Manhattan */
-    int vwalls[15][15];
-    int hwalls[15][15];
+    int vwalls[16][16];
+    int hwalls[16][16];
     int mhtn[16][16];
 } maze;
 
@@ -23,8 +23,8 @@ void updatepos(class mmstats *mms);
 void locateWall(struct maze &maze);
 
 void flood(struct maze *maze, struct mmstats *mmstats, int coordinates[2]) {
-    int i, j;
-    int prevNum;
+    int i = 0, j = 0;
+    int prevNum = 0;
     int marked[16][16] = {0};
     std::queue<fill> myqueue;
 
@@ -36,7 +36,7 @@ void flood(struct maze *maze, struct mmstats *mmstats, int coordinates[2]) {
         prevNum = myqueue.front().z;
         myqueue.pop();
 
-        if (i < 0 || i > W || j < 0 || j > W || marked[i][j] == 1) {
+        if (i < 0 || i > W || j < 0 || j > W || marked[i][j]) {
             continue;
         } else {
             API::setText(i, j, prevNum + 1);