#include <iostream> using namespace std; int main() { cout << "Hello ACOJ!"; return 0; }
class Solution { public: vector<int> solve() { return {1, 2, 3}; } };
// 算法竞赛 struct Node { int val; Node *next; };
def main(): print("ACOJ") return if __name__ == "__main__": main()
class Solution: def solve(self): return [1, 2, 3]
# 数据结构 for i in range(n): dp[i] = dp[i-1] + 1
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