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2024-08-28 22:35
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#include <bits/stdc++.h> int main() { std::cin.tie(0)->sync_with_stdio(0); std::cin.exceptions(std::cin.failbit); std::string S; std::cin >> S; int n = (int) S.size(); for (int i = 1; i < n; ++i) { if (S[i] == S[i-1]) { std::cout << "Yes\n"; exit(0); } } std::cout << "No\n"; return 0; }