#include void main () { int seiseki[][3] = { { 80, 90, 100 }, { 70, 70, 60 }, { 100, 50, 60 } }; int ans = 0; int i, j; int tmp; for (i = 0; i < 3; i++) { tmp = 0; for (j = 0; j < 3; j++) { printf("%4d", seiseki[i][j]); tmp += seiseki[i][j]; } printf("%5d", tmp); ans += tmp; putchar('\n'); } for (j = 0; j < 3; j++) { tmp = 0; for (i = 0; i < 3; i++) { tmp += seiseki[i][j]; } printf("%4d", tmp); } printf("%5d\n", ans); }