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Find Pivot Index #87

Closed
Tracked by #101
fkdl0048 opened this issue Oct 13, 2024 · 0 comments
Closed
Tracked by #101

Find Pivot Index #87

fkdl0048 opened this issue Oct 13, 2024 · 0 comments
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fkdl0048 commented Oct 13, 2024

class Solution {
public:
    int pivotIndex(vector<int>& nums) {
        int total_sum = 0;
        int left_sum = 0;

        for (int num : nums) {
            total_sum += num;
        }

        for (int i = 0; i < nums.size(); i++) {
            int right_sum = total_sum - left_sum - nums[i];

            if (right_sum == left_sum) {
                return i;
            }

            left_sum += nums[i];
        }

        return -1;
    }
};
  • 슬라이딩과 비슷하게 전체 합에서 빼면서 접근 (개념적인 아이디어를 잘 사용하자..)
@fkdl0048 fkdl0048 mentioned this issue Oct 13, 2024
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@fkdl0048 fkdl0048 self-assigned this Oct 13, 2024
@fkdl0048 fkdl0048 added this to Todo Oct 13, 2024
@github-project-automation github-project-automation bot moved this to Todo in Todo Oct 13, 2024
@fkdl0048 fkdl0048 added this to the LeetCode milestone Oct 13, 2024
@github-project-automation github-project-automation bot moved this from Todo to Done in Todo Oct 14, 2024
@fkdl0048 fkdl0048 mentioned this issue Oct 15, 2024
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