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| author | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
|---|---|---|
| committer | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
| commit | 99e2e923d0c77b02f3fb4ff648ea916954868606 (patch) | |
| tree | ec8e03f6f2cd1ce43990fb4fe6cd631967d0237e /store/works/solutions/leetcode/cpp/63.cpp | |
| parent | 1cee979f5d36b311a03cc7397a036ba11caf3d42 (diff) | |
| download | crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.tar.gz crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.tar.bz2 crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.zip | |
chore(store): move everything to store.
Diffstat (limited to 'store/works/solutions/leetcode/cpp/63.cpp')
| -rw-r--r-- | store/works/solutions/leetcode/cpp/63.cpp | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/store/works/solutions/leetcode/cpp/63.cpp b/store/works/solutions/leetcode/cpp/63.cpp new file mode 100644 index 0000000..ed07bdc --- /dev/null +++ b/store/works/solutions/leetcode/cpp/63.cpp @@ -0,0 +1,44 @@ +#include <vector>
+
+using std::vector;
+
+class Solution
+{
+public:
+ int uniquePathsWithObstacles(vector<vector<int>> &obstacleGrid)
+ {
+ if (obstacleGrid[0][0])
+ return 0;
+ obstacleGrid[0][0] = 1;
+
+ int row = obstacleGrid.size();
+ int col = obstacleGrid.front().size();
+
+ for (int i = 1; i < row; i++)
+ {
+ obstacleGrid[i][0] = obstacleGrid[i - 1][0] && !obstacleGrid[i][0] ? 1 : 0;
+ }
+
+ for (int i = 1; i < col; i++)
+ {
+ obstacleGrid[0][i] = obstacleGrid[0][i - 1] && !obstacleGrid[0][i] ? 1 : 0;
+ }
+
+ for (int r = 1; r < row; r++)
+ {
+ for (int c = 1; c < col; c++)
+ {
+ if (obstacleGrid[r][c])
+ {
+ obstacleGrid[r][c] = 0;
+ }
+ else
+ {
+ obstacleGrid[r][c] = obstacleGrid[r - 1][c] + obstacleGrid[r][c - 1];
+ }
+ }
+ }
+
+ return obstacleGrid[row - 1][col - 1];
+ }
+};
|