[string/palindromes_in_deque] fix according to review comment

#1157 (comment) #1157 (comment)
yosupo06 · May 26, 2024 · 88a8003 · 88a8003
1 parent 9be66b9
commit 88a8003
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/string/palindromes_in_deque/verifier.cpp b/string/palindromes_in_deque/verifier.cpp
@@ -5,15 +5,16 @@ using namespace std;
 int main() {
     registerValidation();
 
-    int q = inf.readInt(1, Q_MAX, "Q");
+    int q = inf.readInt(Q_MIN, Q_MAX, "Q");
     inf.readChar('\n');
 
     int length = 0;
     for (int i = 0; i < q; i++) {
         int t = inf.readInt(0, 3, "t");
         if (t == 0 || t == 1) {
             inf.readSpace();
-            inf.readChar();
+            char ch = inf.readChar();
+            ensure('a' <= ch && ch <= 'z');
             length++;
         } else if (t == 2 || t == 3) {
             length--;