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Yudong Jin
7257641e0e
* Retranslate the complete Japanese online edition from Chinese * Fit Japanese homepage labels and localize heading permalinks * Point Japanese contribution instructions to the Japanese preview * Replace locale conditionals with multilingual UI tables
27 lines
452 B
C++
27 lines
452 B
C++
/**
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* File: fast_power.cpp
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* Created Time: 2026-08-18
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* Author: Hello Algo Team
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*/
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#include <cassert>
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/* 高速べき乗法 */
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int fastPow(int x, int n) {
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if (n == 0) {
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return 1;
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}
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int half = fastPow(x, n / 2);
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if (n % 2 == 0) {
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return half * half;
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}
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return half * half * x;
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}
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int main() {
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assert(fastPow(7, 0) == 1);
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assert(fastPow(3, 5) == 243);
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assert(fastPow(2, 6) == 64);
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return 0;
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}
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