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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <iterator>
  4.  
  5. int main()
  6. {
  7.   using U = unsigned long; // <10**9
  8.   std::istream_iterator<U> numbers {std::cin}, eof;
  9.   if (numbers == eof)
  10.     return 1; // invalid input, no size
  11.  
  12.   U count = 0, max_same_count = count; // <10**5
  13.   U last = -1;
  14.   for (++numbers /* skip size */; numbers != eof; ++numbers) {
  15.     if (!count)
  16.       last = *numbers;
  17.     if (last == *numbers)
  18.       ++count;
  19.     else {
  20.       max_same_count = std::max(max_same_count, count);
  21.       count = 1;
  22.       last = *numbers;
  23.     }
  24.   }
  25.   std::cout << std::max(max_same_count, count) << '\n';
  26. }
  27.  
Success #stdin #stdout 0s 15240KB
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stdin
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4
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5 1000
stdout
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3
https://ideone.com/ft43x6
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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