#include<stdio.h>
int main(void)
{
int i, j, cnt = 0, sum = 0;
int score[4][3] = {
{45, 50, 60},
{75, 95, 45},
{100, 90, 95},
{60, 70, 80},};
char name[] = {'A','B','C','D'};
double a[4];
for (i = 0; i < 4; i++) {
for (j = 0; j < 3; j++)
printf("score[%d][%d]=%d\n", i, j, score[i][j]);
}
printf("\n") ;
for (i = 0; i < 4; i++) {
for (j = 0; j < 3; j++) {
printf("%c君の第%d回小テストの点数は%dです。\n", name[i], j + 1, score[i][j]) ;
cnt++;
sum += score[i][j] ;
}
a[i] = (double)sum / cnt;
sum = cnt = 0;
}
for (i = 0; i < 4; i++)
printf("%c君の平均点は %lf 点でした。\n", name[i], a[i]);
return 0;
}