upload

1/E.cpp

@@ -0,0 +1,36 @@
+#include <iostream>
+
+int main() {
+    int size, offset_l = 0, offset_r = 0, counter = 0;
+
+    std::cin >> size;
+
+    char *word = new char[size];
+    for (int i = 0; i < size; ++i)
+        std::cin >> word[i];
+
+    if (size == 3) {
+        if (word[0] == word[1] || word[1] == word[2] || word[0] == word[2])
+            std::cout << "YES";
+        else
+            std::cout << "NO";
+        return 0;
+    }
+
+    for (int i = 0; i < (size / 2) + (size % 2) - counter; ++i) {
+        if (word[i + offset_l] != word[size - i - offset_r - 1]) {
+            ++counter;
+            if (word[i + offset_l + 1] == word[size - i - offset_r - 1])
+                ++offset_l;
+            else
+                ++offset_r;
+        }
+    }
+    delete[] word;
+
+    if (counter < 2)
+        std::cout << "YES";
+    else
+        std::cout << "NO";
+    return 0;
+}