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RSS订阅转载 1103 integer factorization
dfs+pruneAC代码：#include <vector>#include <cstdio>#include <algorithm>#include <cmath>#include <numeric>using namespace std;class sol{public: ...
2016-03-11 23:15:00
214
转载 1098 insertion or heap sort
堆排序STL algorithm里有建堆make_heap,出栈 pop_heap（将堆首元素移至容器尾部）,入栈push_heap，以及堆排序sort_heapAC代码#include <vector>#include <cstdio>#include <string>#include <algorithm>u...
2016-03-11 11:46:00
107
转载 1091 acute stroke
三维空间的DFS，挺新颖的一题AC代码：#include <vector>#include <cstdio>#include <queue>using namespace std;int x[] = {0,0,1,0,-1,0};int y[] = {0,1,0,-1,0,0};int z[] = {-1,0,0,0...
2016-03-10 22:59:00
124
转载 1090 highest price in supply chain
p,r用double类型，pat多题如果用float会WAAC代码#include <vector>#include <cstdio>#include <cmath>using namespace std;int main(){ int n; double p,r; scanf("%d %lf ...
2016-03-10 22:24:00
102
转载 1088
a x b = c将a,b,c用out统一输出AC代码：#include <cstdio>#include <string>using namespace std;long long gcd(long long x,long long y){ if(x == 0) return y; if(y ==...
2016-03-10 20:52:00
182
转载 1082 read number in chinese
注意0的情况AC代码：#include <string>#include <iostream>#include <vector>using namespace std;string number[] = {"ling","yi","er","san","si","wu","liu","qi","ba","jiu"};st...
2016-03-09 22:49:00
82
转载 1079 total sales of supply chain
BFS，用递归的话会段错误，改用vector，变量idx记录下一层的起点AC代码：#include <vector>#include <cstdio>#include <map>using namespace std;/*void bfs(vector<vector<int>>& g,vect...
2016-03-09 19:44:00
104
转载 1075 pat judge
最后一个测试点一直通不过，琢磨了一上午，终于找出bug主要原因：考生k的第一个成绩是-1的情况，应将这项成绩记下，至于k是否所有提交的成绩都是-1，通过设置成员变量AC来判断，AC为true，写入vector参加后续排序，AC为false，不写入vector不参加后续排序。AC代码：#include <algorithm>#include <vect...
2016-03-09 11:39:00
171
转载 1074 reverse list
最后一个测试用例很坑，注意给出的n个节点不一定都在以h为头的链表上，这种测试用例在PAT链表相关的问题中多次出现，要予以注意。AC代码#include <vector>#include <map>#include <algorithm>#include <cstdio>using namespace std;...
2016-03-09 00:04:00
104
转载 1071 speech pattern
#include <string>#include <sstream>#include <map>#include <vector>#include <iostream>using namespace std;int main(){ vector<string> v; ...
2016-03-08 20:26:00
175
转载 1065 a+b and c(64)
做得比较乱，修改多次后终于AC#include <string>#include <iostream>#include <algorithm>using namespace std;bool cmp(string a,string b){ if(a == b) return false; i...
2016-03-08 10:54:00
153
转载 pop sequence
两个set维护在stack中和不在stack中的元素，priority_queue维护在stack中的最大元素AC代码#include <set>#include <iostream>#include <queue>#include <cstdio>#include <vector>using n...
2016-03-03 21:12:00
100
转载 1049 counting ones
从所有一位数包含的1开始向上递推所有k位数包含的1，递推式：ak = ak-1 * 10 + pow(10,k-1);AC代码：#include <vector>#include <cstdio>using namespace std;int main(){ int n; vector<int> rec;...
2016-03-03 20:26:00
100
转载 1040 the longest symmetric
以每个字符为中心，分两种情况向两边扩展。manacher算法参见http://www.cnblogs.com/houkai/p/3371807.htmlAC代码：#include <string>#include <cstdio>#include <iostream>using namespace std;int mai...
2016-03-02 16:24:00
114
转载 1039 course list for student
最后一点用string 和cin会超时将学生名字转换成int用scanf就可以了AC代码：#include <vector>#include <string>#include <map>#include <set>#include <cstdio>#include <iostream&g...
2016-03-02 16:03:00
179
转载 1038 recover the smallest number
注意：最小数为0时，要输出“0”AC代码#include <string>#include <vector>#include <algorithm>#include <iostream>using namespace std;bool cmp(const string& a,const string&...
2016-03-02 12:42:00
89
转载 1035 head of a gang
简单并查集AC代码#include <map>#include <string>#include <iostream>#include <cstdio>#include <vector>using namespace std;string find(map<string,string&g...
2016-03-01 23:40:00
85
转载 1033 to fill or not to fill
贪心算法注意两点：1、sum用double类型2、第二个测试点是起点没有加油站的情况AC代码 1 #include <vector> 2 #include <cstdio> 3 #include <algorithm> 4 #include <map> 5 using namespace s...
2016-03-01 22:32:00
119
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