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* Revised the book * Update the book with the second revised edition * Revise base on the manuscript of the first edition
50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
/**
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* File: max_capacity.c
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* Created Time: 2023-09-15
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* Author: xianii (xianyi.xia@outlook.com)
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*/
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#include "../utils/common.h"
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/* 求最小值 */
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int myMin(int a, int b) {
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return a < b ? a : b;
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}
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/* 求最大值 */
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int myMax(int a, int b) {
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return a < b ? a : b;
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}
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/* 最大容量：贪心 */
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int maxCapacity(int ht[], int htLength) {
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// 初始化 i, j，使其分列数组两端
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int i = 0;
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int j = htLength - 1;
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// 初始最大容量为 0
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int res = 0;
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// 循环贪心选择，直至两板相遇
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while (i < j) {
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// 更新最大容量
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int capacity = myMin(ht[i], ht[j]) * (j - i);
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res = myMax(res, capacity);
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// 向内移动短板
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if (ht[i] < ht[j]) {
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i++;
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} else {
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j--;
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}
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}
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return res;
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}
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/* Driver Code */
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int main(void) {
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int ht[] = {3, 8, 5, 2, 7, 7, 3, 4};
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// 贪心算法
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int res = maxCapacity(ht, sizeof(ht) / sizeof(int));
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printf("最大容量为 %d\n", res);
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return 0;
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}
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