Return Styles: Pseud0ch, Terminal, Valhalla, NES, Geocities, Blue Moon. Entire thread

Which loop is faster?



for (I = 0; I < N; I++)

  for (J = 0; J < M; J++)

    update(Xs[I][J]);



for (I = 0; I < N; I++)

  for (J = 0; J < M; J++)

    update(Xs[J][I]);

???

Another question.

Which one is faster?



for (int i = 0; i < height; i++}

    for (int j = 0; j < width; j++)

         array[i][j] = value;



for (int i = 0; i < size; i++}

    array[size / i][size % i] = value;

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