15 lines
247 B
Markdown
15 lines
247 B
Markdown
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# L - Harmonic Number (II)
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* https://vjudge.net/contest/509210#problem/L
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### <20><><EFBFBD><EFBFBD>
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res = res + n / i;<3B><><EFBFBD>ͣ<EFBFBD>1 <20><> n < 2^31
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### <20><><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֿ<EFBFBD><EFBFBD><EFBFBD>
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sqrt(n)ǰ<><C7B0>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>İ<EFBFBD><EFBFBD><EFBFBD>n/2~1,n/3~n/2<><32><EFBFBD><EFBFBD>,n/m)<29><>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD>m
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### <20>ؼ<EFBFBD><D8BC><EFBFBD>
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### <20>״<EFBFBD><D7B4><EFBFBD>
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* <20><><EFBFBD><EFBFBD>m
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### <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*
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