fix logical err in win/tie

main.cpp

@@ -7,6 +7,7 @@
 #define pter cerr <<
 #define nl "\n"
 #define in cin >>
+#define all(x) x.begin(), x.end()
 
 using namespace std;
 
@@ -99,12 +100,14 @@ bool isValidPlayer(char c) {
 }
 
 string toString(int x) {
+    if (!x) return "0";
+
     string result;
     while (x) {
         result.push_back(x % 10 + '0');
         x /= 10;
     }
-    reverse(result.begin(), result.end());
+    reverse(all(result));
     return result;
 }
 
@@ -185,6 +188,7 @@ void printBoard(char **board, int x, int y) {
         }
         pt nl;
     }
+    pt endl;
 }
 
 char toLowerCase(char c) {
@@ -224,7 +228,7 @@ void printScores(int *points, char blacklist) {
 
     int prev = -1;
 
-    string win = arr[0].second == arr[1].second ? " (tie)\n" : " (win)\n";
+    string win = arr[25].second == arr[24].second ? " (tie)\n" : " (win)\n";
 
     for (int i = 0; i < 26; i++) {
         if (arr[i].second != -1) {
@@ -235,6 +239,7 @@ void printScores(int *points, char blacklist) {
     }
 
     dealloc(arr);
+    pt endl;
 }
 
 bool isValidMove(int x, int y, char **board) {
@@ -340,7 +345,7 @@ void solve(Moves moves, char **board) {
         points[normalize(player)] = max(0, points[normalize(player)]);
 
         if (!isValidMove(moveX, moveY, board)) {
-            pt "Invalid move by: " << player << " at (x, y): (" << moveX << ", " << moveY << ")" << nl;
+            pt "Invalid or Repeated move by: " << player << " at (x, y): (" << moveX << ", " << moveY << ")" << nl;
             board[moveX][moveY] = 'X';
             printBoard(board, moves.x, moves.y);