left: 3 right: 4
代入int mid = left + (right - left) / 2;是int mid = 3 + (4 - 3) / 2;
不是3+0.5=3.5嗎?
怎么變換成mid = (3 + 4) / 2 = 3這個(gè)結(jié)構(gòu)的呀?
而且mid = (3 + 4) / 2 = 3也等于3.5
是要向下去整嗎?
代入int mid = left + (right - left) / 2;是int mid = 3 + (4 - 3) / 2;
不是3+0.5=3.5嗎?
怎么變換成mid = (3 + 4) / 2 = 3這個(gè)結(jié)構(gòu)的呀?
而且mid = (3 + 4) / 2 = 3也等于3.5
是要向下去整嗎?
2023-11-15