#include <stdio.h>
int score_list[100]; //最大100個までの点数を格納する配列
int size = 0; //score_listに格納されている点数の個数
void record(int score){
	score_list[size] = score;
	size +=1;
// scoreをscore_listに格納し、sizeを更新
}
double average(){
	int i,sum=0;
	double result;
	for(i=0;i<5;i++){
		sum = sum + score_list[i];
		result = sum/ 5.0;
	}
		return result;
 
// score_listに格納されている点数の平均を計算
}
int main(void){
int i, score;
for(i=0;i<5;i++){
scanf("%d", &score);
printf("%d人目：%d点\n", i+1, score);
record(score);
}
printf("平均点：%lf点\n", average());
return 0;
}

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