C++ average of negative elements in array [closed]

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You could do it for example:

int negNumber = 0;
int sum = 0;

for (int i = 0; i < 3; ++i) {
  for (int j = 0; j < 3; ++j) {
    if (A[i][j] < 0) {
      ++negNumber; // increase negatives numbers found
      sum += A[i][j]; // add to our result the number
    }
  }
}

sum = negNumber > 0 ? sum / negNumber : sum; // we need to check if we found at least one negative number

I hope it will help you but be careful! It will return a truncated value (an int).

the ternary operation could be difficult to undertand so you can do it:

if (negNumber > 0) {
  sum /= negNumber;
}

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