Give the running time (complexity) of the statements as afunction of the value of the variableN. You answer should be as“tight” and “simple” as possible. (a) int sum = 0; for (int i = 1;i < N; i *= 2) for (int j = 0; j < N; j++) sum++; (b)for(i =0; i < N; i++) for(j = 0; j < N; j++) for(k = 0; k < i *j; k++) sum++;
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