250\uff1a\u50bb\u53c9\u9898\uff0c\u679a\u4e3e\u5373\u53ef<\/p>\n
500\uff1a\u5bf9\u6bcf\u4e2a\u4eba\u7b97\u51fa\u4ed6\u662f\u591a\u5c11\u5206\u7684\u65b9\u6cd5\u6570\uff0c\u7136\u540e\u505a\u4e00\u6b21\u7b80\u5355\u7684dp\u5373\u53ef<\/p>\n
Code:<\/p>\n
#include <vector>#include <list>#include <map>#include <set>#include <deque>#include <stack>#include <bitset>#include <algorithm>#include <functional>#include <numeric>#include <utility>#include <sstream>#include <iostream>#include <iomanip>#include <cstdio>#include <cmath>#include <cstdlib>#include <ctime>#include <cstring>#define foreach(e,x) for(__typeof(x.begin()) e=x.begin();e!=x.end();++e)using namespace std;class SRMIntermissionPhase { public: int countWays(vector<int>, vector<string>);};const int MOD = int(1e9) + 7;inline int add(int a, int b) { int c = a + b; if (c >= MOD) c -= MOD; return c;}int SRMIntermissionPhase::countWays(vector<int> points, vector<string> description) { const int MAX_VALUE = 200000 + 10; vector<int> am(MAX_VALUE, 0); am[MAX_VALUE – 1] = 1; for (int i = 0; i < description.size(); ++i) { vector<int> cur(MAX_VALUE, 0); cur[0] = 1; for (int j = 0; j < 3; ++j) { if (description[i][j] == ‘Y’) { int v = points[j]; vector<int> ncur(MAX_VALUE, 0); partial_sum(cur.begin(), cur.end(), cur.begin(), add); for (int i = 1; i < ncur.size(); ++i) { ncur[i] = cur[i – 1] – (i >= v + 1 ? cur[i – v – 1] : 0); if (ncur[i] < 0) ncur[i] += MOD; } cur = ncur; } } vector<int> nam(MAX_VALUE, 0); partial_sum(am.rbegin(), am.rend(), am.rbegin(), add); for (int i = 0; i + 1 < am.size(); ++i) { nam[i] = 1LL * am[i + 1] * cur[i] % MOD; } am = nam; } return accumulate(am.begin(), am.end(), 0LL) % MOD;}\/\/Powered by [KawigiEdit] 2.0!<\/p>\n<\/p>\n
1000:<\/p>\n
\u6211\u4eec\u4ee4\u4e00\u4e2a\u4eba\u5982\u679c\u53ea\u80fdCha\u522b\u4eba\uff0c\u5c31\u53eb\u4ed6\u653bG\uff0c\u5982\u679c\u53ea\u80fd\u88abCha\u5c31\u53eb\u53d7S\uff0c\u5982\u679c\u80fd\u81ea\u653b\u81ea\u53d7\u5c31\u53eb\u4ed6B\uff0c<\/p>\n
\u90a3\u4e48\u4e00\u4e2a\u4eba\u5728\u88ab\u7206\u4e86\u4e4b\u540e\u4e0d\u80fd\u7206\u522b\u4eba\uff08\u5927\u96fe\uff09<\/p>\n
\u7a0d\u4f5c\u5206\u6790\u53ef\u4ee5\u53d1\u73b0\u4e0d\u6210\u529f\u7684Cha\uff0cCha\u8c01\u90fd\u53ef\u4ee5\uff0c\u6240\u4ee5\u53ea\u8003\u8651\u6210\u529f\u7684Cha<\/p>\n
G\u548cS\u90fd\u5f88\u597d\u5206\u6790\uff0c\u5173\u952e\u662fB\uff0c\u53ef\u4ee5\u5047\u8bbe<\/p>\n
g->b1->b2->b3->b4,<\/p>\n
\u53ef\u4ee5\u53d1\u73b0\u5728\u8fd9\u4e2a\u653b\u53d7\u94fe\u4e2d\uff0cCha\u7684\u987a\u5e8f\u5fc5\u987b\u662fb4\u5012\u8fc7\u6765\u5230g\uff0c\u90a3\u4e48\u8fd9\u4e2a\u987a\u5e8f\u5c31\u7ed9\u5b9a\u4e86<\/p>\n
\u4e5f\u5c31\u662f\u8bf4\u8fd9\u4e48\u4e00\u4e2a\u94fe\u6761\u7b49\u4ef7\u4e8e\u4e00\u4e2aG<\/p>\n
\u8fdb\u4e00\u6b65\u7684\u5206\u6790\u53ef\u4ee5\u53d1\u73b0\u4e0d\u540c\u7684\u94fe\u6761\u65b9\u6848\u6570\u5c31\u662f\u65af\u7279\u6797\u7b2c\u4e8c\u6570\u5217\u3002\u3002\u3002<\/p>\n
\u90a3\u4e48\u628a\u8fd9\u4e2a\u4e58\u4e0a\u53bb\u5c31\u53ea\u9700\u8981\u8003\u8651G\u548cS\u4e86\u3002\u3002\u5c31\u50bb\u53c9\u4e86\u3002\u3002<\/p>\n
<\/p>\n
P.S.\u8bed\u6cd5\u9ad8\u4eae\u662f\u7528vim\u505a\u7684\u3002\u3002\u3002<\/p>\n
<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
250\uff1a\u50bb\u53c9\u9898\uff0c\u679a\u4e3e\u5373\u53ef 500\uff1a\u5bf9\u6bcf\u4e2a\u4eba\u7b97\u51fa\u4ed6\u662f\u591a\u5c11\u5206\u7684\u65b9\u6cd5\u6570\uff0c\u7136\u540e\u505a\u4e00\u6b21\u7b80\u5355\u7684dp\u5373\u53ef Code: #include <vector>#include <list>#include <map>#include <set>#include <deque>#include <stack>#include <bitset>#include <algorithm>#include <functional>#include <numeric>#include <utility>#include <sstream>#include <iostream>#include <iomanip>#include <cstdio>#include <cmath>#include <cstdlib>#include <ctime>#include <cstring>#define foreach(e,x) for(__typeof(x.begin()) e=x.begin();e!=x.end();++e)using namespace std;class SRMIntermissionPhase { public: int countWays(vector<int>, vector<string>);};const int MOD = int(1e9) + 7;inline int add(int a, int b) { int c = a + b; if (c >= […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/494"}],"collection":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=494"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/494\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}