Roman and Numbers time limit per test 4 seconds memory limit per test 512 megabytes input standard input output standard output Roman is a young mathematician, very famous in Uzhland. Unfortunately,...
标程貌似是二分？ 我预处理标记了一下，然后从1到n枚举t，因为对于每个t，若s存在，那么s是唯一的，所以枚举t即可。 判断t是否合法，直接暴力的话，会超时 不知道标程大致思想是否跟我的一样，也许就是标程没有标记而是二分来找 但是，我的时间复杂度是更优的，n*(1+1/2+1/3+......1/n)=n*lnn的做法 #include#include#include#include#include#include#include#include#include#in...
/** * @brief Codeforces Round #279 (Div. 2) d * @file d.cpp * @author 面码 * @created 2014/12/09 10:58 * @edited 2014/12/09 10:58 * @type math greedy * @note 自己的AC不了，参考别人的，重点是2和3都是质数，所以可以使用贪心求解。 */#include #include #include #include #include using namespace std;#define max(a, b) ((a) > (b) ? (a) : (b))#define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(a) (...
/** * @brief Codeforces Round #275 (Div. 2) b * @file b.cpp * @author 面码 * @created 2014/12/11 18:09 * @edited 2014/12/11 18:09 * @type math binary search * * */#include #include #include #include #include #include #include #include #include using namespace std;#define max(a, b) ((a) > (b) ? (a) : (b))#define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(a) ((a) > 0 ? (a) : (0 - (a)))...
/** * @brief Codeforces Round #275 (Div. 2) a * @file a.cpp * @author 面码 * @created 2014/12/10 15:35 * @edited 2014/12/10 15:35 * @type brute * */#include #include #include #include #include #include using namespace std;#define max(a, b) ((a) > (b) ? (a) : (b))#define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(a) ((a) > 0 ? (a) : (0 - (a)))#define CLR(vec) memset(vec, 0, sizeof(ve...
/** * @brief Codeforces Round #283 (Div. 2) a * @file a.cpp * @author mianma * @created 2014/12/18 17:45 * @edited 2014/12/18 17:45 * @type brute * @note */#include #include #include using namespace std;#define max(a, b) ((a) > (b) ? (a) : (b))#define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(a) ((a) > 0 ? (a) : (0 - (a)))#define CLR(vec) memset(vec, 0, sizeof(vec))#ifdef DEBUGifstr...
/** * @brief Codeforces Round #282 (Div. 2) c * @file c.cpp * @author mianma * @created 2014/12/16 16:09 * @edited 2014/12/16 16:09 * @type math * @note */#include #include #include #include using namespace std;#define max(a, b) ((a) > (b) ? (a) : (b))#define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(a) ((a) > 0 ? (a) : (0 - (a)))#define CLR(vec) memset(vec, 0, sizeof(vec))#ifdef DE...
/** * @brief Codeforces Round #282 (Div. 2) a * @file a.cpp * @author mianma * @created 2014/12/15 9:55 * @edited 2014/12/15 9:55 * @type math * @note */#include #include #include using namespace std;#define max(a, b) ((a) > (b) ? (a) : (b))#define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(a) ((a) > 0 ? (a) : (0 - (a)))#define CLR(vec) memset(vec, 0, sizeof(vec))#ifdef DEBUGifstream...
/** * @brief Codeforces Round #275 (Div. 2) c * @file c.cpp * @author 面码 * @created 2014/12/10 16:54 * @edited 2014/12/10 16:54 * @type math * */#include #include #include #include #include #include #include #include #include using namespace std;#define max(a, b) ((a) > (b) ? (a) : (b))#define min(a, b) ((a) > (b) ? (b) : (a)) #define abs(a) ((a) > 0 ? (a) : (0 - (a)))#define CLR(vec) ...