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posted @ 2024-06-22 01:52 Showball ÔĶÁ(2) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º CF 1978 D. Elections (*1600) ˼ά ÌâÄ¿Á´½Ó ÌâÒ⣺ \(n\) ¸öÈ˽øÐÐÑ¡¾Ù£¬µÚ \(i\) ¸öÈËÓÐ \(a_i\) ¸ö·Û˿ͶƱ¸øËû£¬ÁíÍâÓÐ \(c\) ¸öÈËûÏëºÃͶ¸øË­¡£ËûÃÇ»áͶ¸ø±àºÅ×îСµÄÈË¡£Í¶Æ±×î¶àµÄÈ˽«Ó®µÃÑ¡¾Ù(ÏàͬƱÊý£¬±àºÅÑ¡µÄÈË»ñʤ)¡£ÏÖÔÚÄã¿ÉÒÔ½«Ò»Ð©ºòÑ¡ÈË ÔĶÁÈ«ÎÄ
posted @ 2024-06-21 03:13 Showball ÔĶÁ(2) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º CF 1975 D Paint the Tree(*1700) Ì°ÐÄ ÌâÄ¿Á´½Ó ÌâÒ⣺ ÓÐÒ»¿ÃÓÐ \(n\) ¸ö½ÚµãµÄÊ÷¡£³õʼʱËùÓнڵ㶼ÊÇ°×É«µÄ¡£ÏÖÔÚ¶¥µã \(a\) ºÍ \(b\) ÉÏÓÐÁ½¸öÆå×Ó \(p_a\) ºÍ \(p_b\) ¡£ÏÖÔÚ¿ÉÒÔÿ´Î½øÐÐÒÔϲÙ×÷£º ½« \(p_a\) Òƶ¯µ½ÏàÁÚ½Úµã ÔĶÁÈ«ÎÄ
posted @ 2024-06-20 00:44 Showball ÔĶÁ(2) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º CF 1980 F1 Field Division (easy version) (*1900) ÌâÄ¿Á´½Ó ÌâÒ⣺ ÓÐÒ»¸ö´óСΪ \(n \times m\) £¨$2 \le n,m\le 10^9 $£©µÄ¾ØÐΡ£ÆäÖÐÓÐ \(k\) ¸öÅçȪ£¬ÄãÏÖÔÚ¿ÉÒÔ´Ó×ó²à»òÕßÉϲàÈa56爆大奖在线娱乐âÒ»¸ö²»ÊÇÅçȪµÄµ¥Ôª¸ñ³ö·¢£¬Ã¿´ÎÖ» ÔĶÁÈ«ÎÄ
posted @ 2024-06-17 18:37 Showball ÔĶÁ(1) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º CF 1981 C Turtle and an Incomplete Sequence(*1800) ¹¹Ôì ÌâÄ¿Á´½Ó ÌâÒ⣺ ¸ø¶¨Ò»¸ö³¤¶ÈΪ \(n\) µÄÐòÁÐ \(a\) £¬ÒªÇó°Ñ \(a\) ÖÐËùÓÐµÄ \(-1\) Ì滻ΪÈa56爆大奖在线娱乐âÕýÕûÊý£¬ÇÒÂú×ã¶ÔÓÚËùÓÐµÄ \(1 \le i \le n\), ÄÇô ÔĶÁÈ«ÎÄ
posted @ 2024-06-16 00:01 Showball ÔĶÁ(2) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º CF 1980E Permutation of Rows and Columns(*1600) ˼ά ÌâÄ¿Á´½Ó ÌâÒ⣺ ¸øÄãÁ½¸ö´óСΪ \(n*m\) µÄ¾ØÕó£¬ÆäÖÐÔªËصÄÊÇ \(n*m\) µÄÅÅÁУ¬Äã¿ÉÒÔÈa56爆大奖在线娱乐â½»»»Á½ÐлòÕßÈa56爆大奖在线娱乐â½»»»Á½ÁС£ ÇóÊÇ·ñͨ¹ý²Ù×÷ʹµÃ¾ØÕó \(a\) ±ä³É¾ØÕó \(b\) ¡£ ˼ ÔĶÁÈ«ÎÄ
posted @ 2024-06-15 22:22 Showball ÔĶÁ(10) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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posted @ 2024-06-04 02:47 Showball ÔĶÁ(9) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
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posted @ 2024-05-28 03:04 Showball ÔĶÁ(119) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º Codeforces Round 945 (Div. 2) A. Chess For Three Ç©µ½ ÌâÒ⣺ Èý¸öÈËÁ½Á½ÏÂÆ壬ʤÕߵà \(2\) ·Ö£¬°ÜÕߵà \(0\) ·Ö£¬Æ½¾ÖË«·½¸÷µÃ \(1\) ·Ö¡£ ÏÖÔÚ¸øÄãÈý¸öÈ˵ĵ÷Ö(ÒѾ­ÉýÐòÅÅÐò)¡£ Çó×î¶àƽ¾Ö¸öÊý£¬Èç¹ûµÃ·Ö²»ºÏ·¨Êä³ö \(-1\)¡£ ÔĶÁÈ«ÎÄ
posted @ 2024-05-21 00:33 Showball ÔĶÁ(44) ÆÀÂÛ(0) ÍƼö(1) ±à¼­
ÕªÒª£º Ring Road 2 ÌâÄ¿Á´½Ó ˼·£ºÏÈ¿¼ÂÇʲôÇé¿öÏ»áÏཻ£¬¶ÔÓÚÁ½ÌõµÀ· \((x_1,y_1)\) ºÍ \((x_2,y_2)\) ¡£ÕâÀïĬÈÏ \(x < y\) £¬ÏÔÈ» µ± $x2 < x1<y2 $ ²¢ÇÒ \(y1<x2\) || \(y1>y2\) ʱ(\(x1\) ºÍ \(y1\) »¥ ÔĶÁÈ«ÎÄ
posted @ 2024-05-20 11:42 Showball ÔĶÁ(2) ÆÀÂÛ(0) ÍƼö(0) ±à¼­