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https://www.luogu.com.cn/fe/api/problem/downloadAttachment/jhqdki17

 

#include<iostream>
#include<vector>
using namespace std;
int main() {char S, A;unsigned long long T;vector<char> s;vector<char> a;vector<unsigned long long> t;while (cin >> S >> A >> T) {s.push_back(S);a.push_back(A);t.push_back(T);}int maxc = 0;int sum = 1;for (int i = 1; i < s.size(); i++) {if (s[i] == a[i] && (t[i] - t[i - 1]) <= 1000) {sum++;}else {if (sum > maxc)maxc = sum;sum = 1;}}if (sum > maxc)maxc = sum;cout << maxc << endl;return 0;
}