Question: Hi i am taking a java class and I am stuck on this question What is the big-O of the following code fragment? int sum

Hi i am taking a java class and I am stuck on this question

What is the big-O of the following code fragment?

int sum = 0;

for(int i = 0; i <= n; i++)

for (int j = m ; j > = 0; j--)

sum = sum + (Math.pow(i,2) * Math.pow(j,2));

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