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Diffstat (limited to 'store/works/solutions/leetcode/week/260/2.cpp')
-rw-r--r-- | store/works/solutions/leetcode/week/260/2.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/store/works/solutions/leetcode/week/260/2.cpp b/store/works/solutions/leetcode/week/260/2.cpp new file mode 100644 index 0000000..86c4cf2 --- /dev/null +++ b/store/works/solutions/leetcode/week/260/2.cpp @@ -0,0 +1,29 @@ +#include <vector> + +using std::vector; + +#include <iterator> +#include <limits> +#include <numeric> + +class Solution { +public: + long long gridGame(vector<vector<int>> &grid) { + int s = grid.front().size(); + std::vector<long long> row0(grid[0].cbegin(), grid[0].cend()); + std::vector<long long> row1(grid[1].cbegin(), grid[1].cend()); + std::vector<long long> ps0, ps1; + + std::partial_sum(row0.cbegin(), row0.cend(), std::back_inserter(ps0)); + std::partial_sum(row1.cbegin(), row1.cend(), std::back_inserter(ps1)); + + long long r = std::numeric_limits<long long>::max(); + + for (int i = 0; i < s; i++) { + long long c = std::max(ps0.back() - ps0[i], i ? ps1[i - 1] : 0); + r = std::min(r, c); + } + + return r; + } +};
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