https://blog.youkuaiyun.com/2201_75845839zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/2201_75845839/article/details/144525060https://blog.youkuaiyun.com/2201_75845839/article/details/1445250602201_75845839Tue, 17 Dec 2024 10:23:38 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/144491141https://blog.youkuaiyun.com/2201_75845839/article/details/1444911412201_75845839Sun, 15 Dec 2024 21:02:36 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/144194601https://blog.youkuaiyun.com/2201_75845839/article/details/1441946012201_75845839Mon, 02 Dec 2024 18:19:04 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/143478718https://blog.youkuaiyun.com/2201_75845839/article/details/1434787182201_75845839Mon, 04 Nov 2024 11:17:59 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/143107650https://blog.youkuaiyun.com/2201_75845839/article/details/1431076502201_75845839Mon, 21 Oct 2024 11:33:21 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142895003https://blog.youkuaiyun.com/2201_75845839/article/details/1428950032201_75845839Sun, 13 Oct 2024 10:51:02 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142869855https://blog.youkuaiyun.com/2201_75845839/article/details/1428698552201_75845839Sat, 12 Oct 2024 10:10:54 +0800= a a & c <= a因此不存在借位关系，又因为是减法运算，所以也不会存在进位关系，那么这道题就是位独立的一道题，直接拆位讨论即可。思路：注意到值域最大是1023，并且恰好二进制表示时各个位数都为1，由异或性质得知，最后S的值域也是不大于1023，可以枚举值域，然后用dp计算概率。不难发现，只有当b全部为偶数时，n才为偶数，因为在乘法中只要有一个乘数为偶数，结果就是偶数。]]>https://blog.youkuaiyun.com/2201_75845839/article/details/142793425https://blog.youkuaiyun.com/2201_75845839/article/details/1427934252201_75845839Wed, 09 Oct 2024 18:39:37 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142529913https://blog.youkuaiyun.com/2201_75845839/article/details/1425299132201_75845839Wed, 25 Sep 2024 18:38:01 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142467310https://blog.youkuaiyun.com/2201_75845839/article/details/1424673102201_75845839Mon, 23 Sep 2024 20:39:27 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142433932https://blog.youkuaiyun.com/2201_75845839/article/details/1424339322201_75845839Sun, 22 Sep 2024 11:42:19 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142378928https://blog.youkuaiyun.com/2201_75845839/article/details/1423789282201_75845839Fri, 20 Sep 2024 11:31:31 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142288757https://blog.youkuaiyun.com/2201_75845839/article/details/1422887572201_75845839Sun, 15 Sep 2024 21:04:18 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/142070258https://blog.youkuaiyun.com/2201_75845839/article/details/1420702582201_75845839Wed, 11 Sep 2024 09:35:35 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/141776895https://blog.youkuaiyun.com/2201_75845839/article/details/1417768952201_75845839Sun, 01 Sep 2024 11:28:39 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/140385967https://blog.youkuaiyun.com/2201_75845839/article/details/1403859672201_75845839Sat, 20 Jul 2024 16:19:45 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/140289861https://blog.youkuaiyun.com/2201_75845839/article/details/1402898612201_75845839Tue, 09 Jul 2024 11:11:50 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/140093111https://blog.youkuaiyun.com/2201_75845839/article/details/1400931112201_75845839Mon, 01 Jul 2024 10:06:09 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/139993883https://blog.youkuaiyun.com/2201_75845839/article/details/1399938832201_75845839Wed, 26 Jun 2024 17:22:30 +0800https://blog.youkuaiyun.com/2201_75845839/article/details/139884406https://blog.youkuaiyun.com/2201_75845839/article/details/1398844062201_75845839Sat, 22 Jun 2024 16:45:02 +0800