int sizeOFarray = 5;
int b[5] = {11, 7, 3, 99, 113};

void setup ()
  {
    Serial.begin(9600);
    int LowestValue = b[0]; // intialising b[i] to be the first index of the array which is 11
      Serial.print ("The initial lowest value of this array is b[0] - ");
      Serial.println(LowestValue);
    for (int i = 1; i < sizeOFarray; i++) // to read the rest of the array 
      {
        Serial.println("-----------------------------------------------------");
        Serial.print("Checking b[");
        Serial.print (i);
        Serial.print ("] - ");
        Serial.println (b[i]);
        delay (200);
        
          if (b[i] < LowestValue) // i is this means index 1 (which is 7) and if it less than the LowestValue (which is set to 11)
            {  
              LowestValue = b[i]; // than the LowestValue will be updated to 7. Now the value stored in 'LowestValue' is 7
              Serial.print ("New lowest value found: ");
              Serial.println(LowestValue);
              delay (200);
            }
          else 
            {
              Serial.print ("No change. Lowest value still remains: ");
              Serial.println(LowestValue);
              delay (200);
            }
        // the code will do the same for the rest of the indexes in the array and if a lower number than 7 is found, 'LowestValue' will be updated to that value    
      }
    Serial.println("-----------------------------------------------------");
    Serial.print ("The Lowest number in the array is: ");
    Serial.println (LowestValue);
  }
void loop () {}