What is the Big-O complexity of the following code snippets: for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { double sum = 0; for(int k = 0; k < n; k++) { sum += a[i][k] * b[k][j]; } c[i][j] = sum; } } AND void doSomething(int x) { while (x > 0) { x /= 2; cout << x << endl; }

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