40 lines
807 B
C++
40 lines
807 B
C++
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/**
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* File: max_product_cutting.cpp
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* Created Time: 2023-07-21
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* Author: krahets (krahets@163.com)
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*/
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#include "../utils/common.hpp"
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/* <20><><EFBFBD><EFBFBD><EFBFBD>зֳ˻<D6B3><CBBB><EFBFBD>̰<EFBFBD><CCB0> */
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int maxProductCutting(int n) {
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// <20><> n <= 3 ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>зֳ<D0B7>һ<EFBFBD><D2BB> 1
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if (n <= 3) {
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return 1 * (n - 1);
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}
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// ̰<>ĵ<EFBFBD><C4B5>зֳ<D0B7> 3 <20><>a Ϊ 3 <20>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD>b Ϊ<><CEAA><EFBFBD><EFBFBD>
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int a = n / 3;
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int b = n % 3;
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if (b == 1) {
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 1 ʱ<><CAB1><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> 1 * 3 ת<><D7AA>Ϊ 2 * 2
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return (int)pow(3, a - 1) * 2 * 2;
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}
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if (b == 2) {
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 2 ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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return (int)pow(3, a) * 2;
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 0 ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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return (int)pow(3, a);
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}
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/* Driver Code */
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int main() {
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int n = 58;
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// ̰<><CCB0><EFBFBD>㷨
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int res = maxProductCutting(n);
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cout << "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>зֳ˻<EFBFBD>Ϊ" << res << endl;
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return 0;
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}
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