以下程序段的输出结果是＿＿＿。int main (void){ int i, m=0, n=0, k=0;for (i=9; i<=11; i++)switch(i/10){ case 0: m++; n++; break;case 1: n++; break;default: k++; n++; }printf (“%d%d%d\n”, m, n, k);return 0; }