{"id":359,"date":"2010-08-23T23:17:00","date_gmt":"2010-08-23T15:17:00","guid":{"rendered":"http:\/\/localhost\/?p=359"},"modified":"2010-08-23T23:17:00","modified_gmt":"2010-08-23T15:17:00","slug":"zjoi2006_mahjong_mahjong","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=359","title":{"rendered":"[Zjoi2006]Mahjong\u9ebb\u5c06"},"content":{"rendered":"\n

[Zjoi2006]Mahjong\u9ebb\u5c06<\/p>\n

Time Limit:1000MS  Memory Limit:65536K
Total Submit:3 Accepted:3<\/p>\n

Description <\/strong><\/p>\n

<\/p>\n

Input <\/strong><\/p>\n

\u7b2c\u4e00\u884c\u4e00\u4e2a\u6574\u6570N\uff08N<=100\uff09\uff0c\u8868\u793a\u73a9\u4e86N\u6b21\u8d85\u7ea7\u9ebb\u5c06\u3002
\u63a5\u4e0b\u6765N\u884c\uff0c\u6bcf\u884c100\u4e2a\u6570a1..a100\uff0c\u63cf\u8ff0\u6bcf\u6b21\u73a9\u724c\u624b\u4e2d\u5404\u79cd\u724c\u7684\u6570\u91cf\u3002ai\u8868\u793a\u6570\u5b57\u4e3ai\u7684\u724c\u6709ai\u5f20\u3002\uff080<=ai& lt;=100\uff09 <\/p>\n

Output <\/strong><\/p>\n

\u8f93\u51faN\u884c\uff0c\u82e5\u80e1\u4e86\u5219\u8f93\u51faYes\uff0c\u5426\u5219\u8f93\u51faNo\uff0c\u6ce8\u610f\u533a\u5206Yes\uff0cNo\u7684\u5927\u5c0f\u5199\uff01 <\/p>\n

Sample Input <\/strong><\/p>\n

3
2 4 0 0 0 0 0 \u2026\u2026 0\uff08\u4e00\u517198\u4e2a0\uff09
2 4 2 0 0 0 0 \u2026\u2026 0\uff08\u4e00\u517197\u4e2a0\uff09
2 3 2 0 0 0 0 \u2026\u2026 0\uff08\u4e00\u517197\u4e2a0\uff09<\/p>\n

Sample Output <\/strong><\/p>\n

Yes
Yes
No<\/p>\n

Source <\/strong><\/p>\n

Day2<\/p>\n

\u4e00\u5f00\u59cb\u6211\u770bAC\u4eba\u6570\u8fd9\u4e48\u5c11\u3002\u3002\u4ee5\u4e3a\u662fBT\u7684\u96be\u9898\u3002\u3002\u4e0d\u6562\u505a\u3002\u3002
\u4e0d\u8fc7\u521a\u521a\u4ed4\u7ec6\u770b\u4e86\u4e0b\u600e\u4e48\u597d\u50cf\u4eff\u4f5b\u3002\u3002\u662f\u6c34\u9898\uff1f
\u6ce8\u610f\u5230\u4ece\u5de6\u5f80\u53f3\u6d88\u53bb\u6bcf\u4e2a\u9ebb\u5c06\uff0c\u9996\u5148\u5f53\u524d\u7684\u53ea\u80fd\u5f71\u54cd3\u4e2a\u3002\u3002
\u6240\u4ee5\u8bb0\u5f55\u5f53\u524d3\u4e2a\u7684\u4e2a\u6570\u5c31\u8db3\u591f\u4e86\u56e7\u3002\u3002\u540c\u65f6\u8fd8\u8981\u77e5\u9053\u90a3\u4e00\u5bf9\u6709\u6ca1\u6709\u88ab\u7528\u8fc7\u3002\u3002
\u6240\u4ee5\u72b6\u6001\u5c31\u662f (pos,Apos,Apos+1,Apos+2,have_pair_used)
\u5e94\u8be5\u8bf4Dp\u5c31\u53ef\u4ee5\u4e86\u3002\u3002\u4e0d\u8fc7\u6211\u6709\u70b9\u61d2\u3002\u3002\u3002\u6240\u4ee5\u7528\u4e86Hash+set\u3002\u3002\u901f\u5ea6\u5f88\u5feb\u554a\u56e7\u3002\u3002
Code\uff1a
#include <cstdio>
#include <set>
#include <iostream>
#define rep(i,n) for(int i=0;i<n;i++)
#define Debug(x) cout<<#x<<"="<<x<<endl;
const int inf=~0U>>1,seed=131,maxn=100;
using namespace std;
typedef unsigned long long ull;
ull P[maxn+1];
set<ull> S;
int A[maxn];
bool ok;
void dfs(int p,bool can,ull code)
{
if(!S.insert(code).second)return;
while(p<maxn&&A[p]==0)p++;
if(p==maxn){if(!can)ok=true;return;}
\/\/three consecutive
if(p+2<maxn&&A[p]&&A[p+1]&&A[p+2])
{
A[p]–;A[p+1]–;A[p+2]–;
ull ncode=code-P[p]-P[p+1]-P[p+2];
dfs(p,can,ncode);if(ok)return;
A[p]++;A[p+1]++;A[p+2]++;
}
\/\/three same
if(A[p]>=3)
{
A[p]-=3;
ull ncode=code-P[p]*3;
dfs(p,can,ncode);if(ok)return;
A[p]+=3;
}
\/\/four same
if(A[p]>=4)
{
A[p]-=4;
ull ncode=code-P[p]*4;
dfs(p,can,ncode);if(ok)return;
A[p]+=4;
}
\/\/use pair
if(A[p]>=2&&can)
{
A[p]-=2;
ull ncode=code-P[p]*2-P[maxn];
dfs(p,!can,ncode);if(ok)return;
A[p]+=2;
}
}
void Solve()
{
ull ret=0;
rep(i,maxn)
{
scanf("%d",A+i);
ret*=seed;ret+=A[i];
}
ret*=seed;ret+=1;
S.clear();
ok=false;
dfs(0,true,ret);
if(ok)puts("Yes");
else puts("No");
}
int main()
{
\/\/freopen("in","r",stdin);
P[0]=1;rep(i,maxn)P[i+1]=P[i]*seed;
int t;cin>>t;rep(i,t)Solve();
} <\/p>\n","protected":false},"excerpt":{"rendered":"

[Zjoi2006]Mahjong\u9ebb\u5c06 Time Limit:1000MS  Memory Limit:65536KTotal Submit:3 Accepted:3 Description Input \u7b2c\u4e00\u884c\u4e00\u4e2a\u6574\u6570N\uff08N<=100\uff09\uff0c\u8868\u793a\u73a9\u4e86N\u6b21\u8d85\u7ea7\u9ebb\u5c06\u3002 \u63a5\u4e0b\u6765N\u884c\uff0c\u6bcf\u884c100\u4e2a\u6570a1..a100\uff0c\u63cf\u8ff0\u6bcf\u6b21\u73a9\u724c\u624b\u4e2d\u5404\u79cd\u724c\u7684\u6570\u91cf\u3002ai\u8868\u793a\u6570\u5b57\u4e3ai\u7684\u724c\u6709ai\u5f20\u3002\uff080<=ai& lt;=100\uff09 Output \u8f93\u51faN\u884c\uff0c\u82e5\u80e1\u4e86\u5219\u8f93\u51faYes\uff0c\u5426\u5219\u8f93\u51faNo\uff0c\u6ce8\u610f\u533a\u5206Yes\uff0cNo\u7684\u5927\u5c0f\u5199\uff01 Sample Input 32 4 0 0 0 0 0 \u2026\u2026 0\uff08\u4e00\u517198\u4e2a0\uff092 4 2 0 0 0 0 \u2026\u2026 0\uff08\u4e00\u517197\u4e2a0\uff092 3 2 0 0 0 0 \u2026\u2026 0\uff08\u4e00\u517197\u4e2a0\uff09 Sample Output YesYesNo Source Day2 \u4e00\u5f00\u59cb\u6211\u770bAC\u4eba\u6570\u8fd9\u4e48\u5c11\u3002\u3002\u4ee5\u4e3a\u662fBT\u7684\u96be\u9898\u3002\u3002\u4e0d\u6562\u505a\u3002\u3002\u4e0d\u8fc7\u521a\u521a\u4ed4\u7ec6\u770b\u4e86\u4e0b\u600e\u4e48\u597d\u50cf\u4eff\u4f5b\u3002\u3002\u662f\u6c34\u9898\uff1f\u6ce8\u610f\u5230\u4ece\u5de6\u5f80\u53f3\u6d88\u53bb\u6bcf\u4e2a\u9ebb\u5c06\uff0c\u9996\u5148\u5f53\u524d\u7684\u53ea\u80fd\u5f71\u54cd3\u4e2a\u3002\u3002\u6240\u4ee5\u8bb0\u5f55\u5f53\u524d3\u4e2a\u7684\u4e2a\u6570\u5c31\u8db3\u591f\u4e86\u56e7\u3002\u3002\u540c\u65f6\u8fd8\u8981\u77e5\u9053\u90a3\u4e00\u5bf9\u6709\u6ca1\u6709\u88ab\u7528\u8fc7\u3002\u3002\u6240\u4ee5\u72b6\u6001\u5c31\u662f (pos,Apos,Apos+1,Apos+2,have_pair_used)\u5e94\u8be5\u8bf4Dp\u5c31\u53ef\u4ee5\u4e86\u3002\u3002\u4e0d\u8fc7\u6211\u6709\u70b9\u61d2\u3002\u3002\u3002\u6240\u4ee5\u7528\u4e86Hash+set\u3002\u3002\u901f\u5ea6\u5f88\u5feb\u554a\u56e7\u3002\u3002Code\uff1a#include <cstdio>#include <set>#include <iostream>#define rep(i,n) for(int i=0;i<n;i++)#define Debug(x) […]<\/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\/359"}],"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=359"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/359\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}