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  1. Prepare
  2. Algorithms
  3. Warmup
  4. Plus Minus
  5. Discussions

Plus Minus

  • shBomberman
     + 2 comments

    This code seems slow because after having iterated through every integers passed in to get a, you're iterating through a again to find val > 0, cal < 0 val == 0. This is what I did:

    int main()
{
    int N;
    cin >> N;

    double nP = 0.0, nN = 0.0, nZ = 0.0;
    int index = 0, num = 0;
    while (index++ < N && cin >> num)
    {
        nP += (num > 0);
        nN += (num < 0);
        nZ += (num == 0);
    }

    printf("%.3f\n", nP/N);
    printf("%.3f\n", nN/N);
    printf("%.3f", nZ/N);
    return 0;
}