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authorcrupest <crupest@outlook.com>2021-02-23 21:07:19 +0800
committercrupest <crupest@outlook.com>2021-02-23 21:07:19 +0800
commitd8f3b40085619cb680c8f227c65a1f5acc393223 (patch)
tree6a38e3a6c79276fc396259ef962d17236dbed569 /cpp/746.cpp
parentb0162802ad9723c678e495f29ca2f0fc0af2eff1 (diff)
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Move leetcode solutions to subdir.
Diffstat (limited to 'cpp/746.cpp')
-rw-r--r--cpp/746.cpp35
1 files changed, 0 insertions, 35 deletions
diff --git a/cpp/746.cpp b/cpp/746.cpp
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-#include <vector>
-
-using std::vector;
-
-#include <algorithm>
-
-class Solution
-{
-public:
- int minCostClimbingStairs(vector<int> &cost)
- {
- int count = cost.size();
-
- // Total cost for index i means min cost of stepping through the number i stair,
- // after which you are free to jump two or one stair.
- // total_costs[i] is based on total_costs[i - 2] and total_costs[i - 1].
- // Note:
- // This is not min cost to step above the number i stair, which has no simple dependency
- // relationship because based on whether it steps through the last step there are two situation.
- // However with the restriction of stepping through that last stair, there is a
- // dependency relationship. And we can easily get the final result by comparing total_costs[count - 2]
- // and total_costs[count - 1]. But not just use total_costs[count - 1].
- vector<int> total_costs(count);
-
- total_costs[0] = cost[0];
- total_costs[1] = cost[1];
-
- for (int i = 2; i < count; i++)
- {
- total_costs[i] = std::min(total_costs[i - 2], total_costs[i - 1]) + cost[i];
- }
-
- return std::min(total_costs[count - 2], total_costs[count - 1]);
- }
-};