摘要:
http://ac.jobdu.com/problem.php?id=1376N^2的算法超时优化算法想了好久没想出来,就当是学习一下STL的set了吧 1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <math.h> 4 #include <set> 5 #include <iostream> 6 #define INF 0x7fffffff 7 using namespace std; 8 set<long long> S; 9 long long a,aa, 阅读全文