#include#define KAMOKU 3 main() { int kokugo; int suugaku; int eigo; int goukei; double heikin; printf("国語:"); scanf("%d",&kokugo); printf("数学:"); scanf("%d",&suugaku); printf("英語:"); scanf("%d",&eigo); goukei = kokugo + suugaku + eigo; heikin = (double)goukei / KAMOKU; printf("\n"); printf("合計:%3d点\n平均:%5.1f点\n",goukei,heikin); }