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| author | Yuqian Yang <crupest@crupest.life> | 2025-02-12 15:55:21 +0800 |
|---|---|---|
| committer | Yuqian Yang <crupest@crupest.life> | 2025-02-12 16:04:50 +0800 |
| commit | 77e6cdc863d2cbd9df578a665804daf28d8593fe (patch) | |
| tree | 62c9f3e071d8d1d6fe125fe801907db11784332e /works/solutions/leetcode/cpp/303.cpp | |
| parent | 10eb95869601e145b1d8bc909424777c25752d51 (diff) | |
| parent | a557fa36a22c5ef4a29da596ee1e3aa10be55984 (diff) | |
| download | crupest-77e6cdc863d2cbd9df578a665804daf28d8593fe.tar.gz crupest-77e6cdc863d2cbd9df578a665804daf28d8593fe.tar.bz2 crupest-77e6cdc863d2cbd9df578a665804daf28d8593fe.zip | |
import(solutions): IMPORT crupest/solutions COMPLETE.
Diffstat (limited to 'works/solutions/leetcode/cpp/303.cpp')
| -rw-r--r-- | works/solutions/leetcode/cpp/303.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/works/solutions/leetcode/cpp/303.cpp b/works/solutions/leetcode/cpp/303.cpp new file mode 100644 index 0000000..06c4ad1 --- /dev/null +++ b/works/solutions/leetcode/cpp/303.cpp @@ -0,0 +1,26 @@ +#include <vector>
+
+using std::vector;
+
+class NumArray
+{
+private:
+ vector<int> prefix_sums;
+
+public:
+ NumArray(vector<int> &nums)
+ {
+ prefix_sums.push_back(0);
+ int sum = 0;
+ for (auto num : nums)
+ {
+ sum += num;
+ prefix_sums.push_back(sum);
+ }
+ }
+
+ int sumRange(int i, int j)
+ {
+ return prefix_sums[j + 1] - prefix_sums[i];
+ }
+};
|