20151012_mondai2.c

//mondai2

#include <stdio.h>

int main()
{
int i, st_num = 5, ave_height = 0, ave_weight = 0;
int data[st_num][3];

for (int i = 0; i < st_num; ++i)
	{
	printf("h w ? ");
	scanf("%d %d", &data[i][0], &data[i][1]);
	ave_height = ave_height + data[i][0];
	ave_weight = ave_weight + data[i][1];
	data[i][2] = data[i][1] * 10000 / (data[i][0] * data[i][0]);
	}

for (int i = 0; i < st_num; ++i)
	{
	printf("%d %d %d \n", data[i][0], data[i][1], data[i][2]);
	}
ave_height = ave_height / st_num;
ave_weight = ave_weight / st_num;

printf("ave height: %d, ave weight: %d \n", ave_height, ave_weight);
}