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A - Difference Max 区间左端减去区间右端 int main() { ios_base::sync_with_stdio(false), cin.tie(0); int a, b, c, d; cin >> a >> b >> c >> d; cout << b - c << end 阅读全文
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Codeforces Round #707 (Div. 2, based on Moscow Open Olympiad in Informatics) Problem 1501A. Alexey and Train 按题意,比较到站的最大值. using ll = long long; int a 阅读全文
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AtCoder Beginner Contest 195 Editorial Problem A - Health M Death(opens new window) 只要检查 \(H\equiv 0\) 即可. Time complexity is \(\mathcal{O}(1)\). Spac 阅读全文