记录编号 |
162028 |
评测结果 |
AAAAAAAAAA |
题目名称 |
[HAOI 2015]数组游戏 |
最终得分 |
100 |
用户昵称 |
Asm.Def |
是否通过 |
通过 |
代码语言 |
C++ |
运行时间 |
1.172 s |
提交时间 |
2015-05-13 12:22:07 |
内存使用 |
24.23 MiB |
显示代码纯文本
- /*****************************************************************************/
- /******************************Designed By Asm.Def****************************/
- /*****************************************************************************/
- #include <cstring>
- #include <cstdio>
- #include <algorithm>
- #include <cstdlib>
- #include <cctype>
- #include <ctime>
- #define SetFile(x) (freopen(#x".in", "r", stdin), freopen(#x".out", "w", stdout) )
- //#define FREAD
- #define FREADLENTH 5000000
- #ifdef FREAD
- char *fread_ptr = (char*)malloc(FREADLENTH);
- #define getc() (*(fread_ptr++))
- #else
- #define getc() getchar()
- #endif
- using namespace std;
- template<class T>inline void getd(T &x){
- int ch = getc();bool neg = false;
- while(!isdigit(ch) && ch != '-')ch = getc();
- if(ch == '-')neg = true, ch = getc();
- x = ch - '0';
- while(isdigit(ch = getc()))x = x * 10 - '0' + ch;
- if(neg)x = -x;
- }
- /*******************************************************************************/
- const int maxn = 64000, P = 2000003;
- int N, val[maxn], vcnt, vt[maxn], checklist[maxn];
- bool check[maxn];
- int SG[maxn];
- #include <vector>
-
- vector<int> Hash[P];
- typedef vector<int>::iterator iterator;
-
- inline int find(const int *L, size_t len, int x){
- const int *R = L + len - 1, *mid;
- while(L <= R){
- mid = L + (R-L) / 2;
- if(val[*mid] > x)L = mid + 1;
- else R = mid - 1;
- }
- return *L;
- }
-
- inline int ind(int x){
- vector<int> &v = Hash[x % P];
- return find(&v[0], v.size(), x);
- }
-
- inline void init(){
- getd(N);
- int i, j, t, s, vtcnt, c, tmp;
- int ccnt;//回滚check数组
- for(i = 1;i * i <= N;++i)val[vcnt++] = i;
- for(j = N / i;j;--j)val[vcnt++] = N / j;
- for(i = 0;i < vcnt;++i){
- t = val[i];s = ccnt = vtcnt = 0;
- for(j = 1;j * j <= t;++j)vt[vtcnt++] = j;
- for(j = t / j;j;--j)vt[vtcnt++] = t / j;//vt:乘k之后能出现的长度
- for(j = vtcnt-2;j >= 0;--j){
- //printf("ind(%d) = %d\n", vt[j], ind(vt[j]));
- tmp = SG[ind(vt[j])];
- c = t / vt[j] - t / (vt[j] + 1);//出现次数
- check[checklist[ccnt++] = s ^ tmp] = true;
- if(c & 1)s ^= tmp;
- }
- j = 1;while(check[j])++j;
- SG[i] = j;
- Hash[t % P].push_back(i);
- for(j = 0;j < ccnt;++j)check[checklist[j]] = false;
- }
- }
-
- inline void work(){
- int K, qcnt, sum, t;
- getd(K);while(K--){
- getd(qcnt);
- sum = 0;
- while(qcnt--){
- getd(t);
- sum ^= SG[ind(N / t)];
- }
- if(sum)puts("Yes");
- else puts("No");
- }
- }
-
- int main(){
-
- #ifdef DEBUG
- freopen("test.txt", "r", stdin);
- #else
- SetFile(haoi2015_t3);
- #endif
- #ifdef FREAD
- fread(fread_ptr, 1, FREADLENTH, stdin);
- #endif
- init();
- work();
-
- #ifdef DEBUG
- printf("\n%.3lf sec\n", (double)clock() / CLOCKS_PER_SEC);
- #endif
- return 0;
- }
-