백준 평균 1546

 

#include <iostream>
 
int GetMaxScore(int maxScore , float list[] , int size)
{
    maxScore = 0;
 
    for (int idx = 0; idx < size; idx++)
    {
        if (list[idx] > maxScore)
        {
            maxScore = list[idx];
        }
    }
    return maxScore;
}
 
float GetAverage(float average, int score, float list[], int size)
{
    for (int idx = 0; idx < size; idx++)
    {
        list[idx] = list[idx] / (float)score * 100;
    }
 
    float result = 0;
    for (int idx = 0; idx < size; idx++)
    {
 
        result += list[idx];
    }
    average = result / size;
    return average;
}
 
 
int main()
{
    int size = 0;
    int input = 0;
    int maxscore = 0;
    float average = 0.0f;;
    scanf("%d", &size);
    float *list = new float[size];
    for (int idx = 0; idx < size; idx++)
    {
        scanf("%d", &input);
        list[idx] = input;
    }
    maxscore = GetMaxScore(maxscore, list, size);
    average = GetAverage(average, maxscore, list, size);
 
     printf("%f\n", average);
    delete[] list;
    return 0;
}