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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
44:22:35
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Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)
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Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
44:22:35
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Codeforces Round 1097 (Div. 2, Based on Zhili Cup 2026)
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Supported by
"bool a[100001]={false};"
use map :)
whats wrong with using a boolean array?
Your boolean array a has size [100001], but the j ≤ 10^9