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publicstaticintdiagonalDifference(List<List<Integer>>arr){intlength=arr.size();intsumFirstDiagonal=0;intsumSecondDiagonal=0;for(inti=0;i<length;i++){sumFirstDiagonal+=arr.get(i).get(i);sumSecondDiagonal+=arr.get(i).get(length-1-i);}// Write your code herereturnMath.abs(sumFirstDiagonal-sumSecondDiagonal);}
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Diagonal Difference
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My solution using java: