upload

3/C.cpp

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+#include <iostream>
+
+typedef long long ll;
+
+void RadixSort(char** arr, const ll size, const ll offset) {
+  if (size == 1)
+    return;
+
+  int i, j, idx;
+  idx = 0;
+  i = idx;
+  j = 1;
+
+  while (idx < size) {
+    while (arr[i][offset] > arr[j][offset]) {
+      std::swap(arr[i], arr[j]);
+      if (i == 0)
+        break;
+      --j;
+      --i;
+    }
+    i = idx;
+    j = ++idx;
+  }
+}
+
+int main() {
+  ll messages_size, message_length, max_offset;
+
+  std::cin >> messages_size >> message_length >> max_offset;
+
+  char** messages = new char* [messages_size];
+
+  for (ll i = 0; i < messages_size; ++i) {
+    messages[i] = new char[message_length];
+    for (ll j = 0; j < message_length; ++j){
+      std::cin >> messages[i][j];
+    }
+  }
+
+  for (ll offset = message_length - 1; message_length - offset - 1 < max_offset; --offset) {
+    RadixSort(messages, messages_size, offset);
+  }
+
+  for (ll i = 0; i < messages_size; ++i) {
+    std::cout << messages[i] << '\n';
+  }
+  return 0;
+}