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int diagonalDifference(vector<vector<int>> arr) { int n = arr.size(); int left_diagonal_sum = 0, right_diagonal_sum = 0; for (int i = 0; i < n; ++i) { left_diagonal_sum += arr[i][i]; right_diagonal_sum += arr[i][(n - 1) - i]; } return abs(left_diagonal_sum - right_diagonal_sum); }
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Diagonal Difference
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