結果
問題 | No.470 Inverse S+T Problem |
ユーザー | rickytheta |
提出日時 | 2016-12-20 01:10:26 |
言語 | C++11 (gcc 11.4.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,525 bytes |
コンパイル時間 | 1,881 ms |
コンパイル使用メモリ | 182,852 KB |
実行使用メモリ | 22,464 KB |
最終ジャッジ日時 | 2024-06-01 22:30:50 |
合計ジャッジ時間 | 6,155 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 4 ms
22,464 KB |
testcase_01 | AC | 5 ms
15,264 KB |
testcase_02 | AC | 6 ms
15,392 KB |
testcase_03 | AC | 5 ms
15,392 KB |
testcase_04 | AC | 4 ms
15,392 KB |
testcase_05 | AC | 4 ms
15,516 KB |
testcase_06 | AC | 18 ms
15,264 KB |
testcase_07 | AC | 18 ms
15,260 KB |
testcase_08 | AC | 18 ms
15,264 KB |
testcase_09 | AC | 5 ms
15,520 KB |
testcase_10 | AC | 5 ms
15,396 KB |
testcase_11 | AC | 5 ms
15,388 KB |
testcase_12 | AC | 5 ms
15,392 KB |
testcase_13 | AC | 5 ms
15,388 KB |
testcase_14 | AC | 5 ms
15,392 KB |
testcase_15 | AC | 4 ms
15,136 KB |
testcase_16 | AC | 5 ms
15,260 KB |
testcase_17 | AC | 5 ms
15,264 KB |
testcase_18 | AC | 5 ms
15,396 KB |
testcase_19 | AC | 5 ms
15,140 KB |
testcase_20 | AC | 5 ms
15,264 KB |
testcase_21 | AC | 5 ms
15,388 KB |
testcase_22 | AC | 5 ms
15,392 KB |
testcase_23 | AC | 5 ms
15,392 KB |
testcase_24 | AC | 5 ms
15,264 KB |
testcase_25 | AC | 7 ms
15,276 KB |
testcase_26 | TLE | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:155:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 155 | scanf("%d",&n); | ~~~~~^~~~~~~~~
ソースコード
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef vector<int> vi; typedef vector<ll> vl; typedef pair<int,int> pii; typedef pair<ll,ll> pll; typedef int _loop_int; #define REP(i,n) for(_loop_int i=0;i<(_loop_int)(n);++i) #define FOR(i,a,b) for(_loop_int i=(_loop_int)(a);i<(_loop_int)(b);++i) #define FORR(i,a,b) for(_loop_int i=(_loop_int)(b)-1;i>=(_loop_int)(a);--i) #define DEBUG(x) cout<<#x<<": "<<x<<endl #define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl #define ALL(a) (a).begin(),(a).end() #define CHMIN(a,b) a=min((a),(b)) #define CHMAX(a,b) a=max((a),(b)) // mod const ll MOD = 1000000007ll; #define FIX(a) ((a)%MOD+MOD)%MOD // floating typedef double Real; const Real EPS = 1e-11; #define EQ0(x) (abs(x)<EPS) #define EQ(a,b) (abs(a-b)<EPS) typedef complex<Real> P; map<string,vi> S1,S2,T1,T2; int n; string u[125252]; string s[125252],t[125252]; const int SS1 = 0, SS2 = 1, TT1 = 2, TT2 = 3; bool dfs2(int type, int id, string x, vi &used){ if(type==SS1){ for(int y:S1[x]){ if(y==id)continue; // ab/c if(s[y]!="#"){ if(s[y].size()==2)continue; else return false; } s[y] = u[y].substr(0,2); t[y] = u[y].substr(2,1); used.push_back(y); if(!dfs2(SS1,y,t[y],used) || !dfs2(TT1,y,t[y],used) || !dfs2(SS2,y,s[y],used) || !dfs2(TT2,y,s[y],used)) return false; } }else if(type==SS2){ for(int y:S2[x]){ if(y==id)continue; // a/bc if(s[y]!="#"){ if(s[y].size()==1)continue; else return false; } s[y] = u[y].substr(0,1); t[y] = u[y].substr(1,2); used.push_back(y); if(!dfs2(SS1,y,s[y],used) || !dfs2(TT1,y,s[y],used) || !dfs2(SS2,y,t[y],used) || !dfs2(TT2,y,t[y],used)) return false; } }else if(type==TT1){ for(int y:T1[x]){ if(y==id)continue; // a/bc if(s[y]!="#"){ if(s[y].size()==1)continue; else return false; } s[y] = u[y].substr(0,1); t[y] = u[y].substr(1,2); used.push_back(y); if(!dfs2(SS1,y,s[y],used) || !dfs2(TT1,y,s[y],used) || !dfs2(SS2,y,t[y],used) || !dfs2(TT2,y,t[y],used)) return false; } }else if(type==TT2){ for(int y:T2[x]){ if(y==id)continue; // ab/c if(s[y]!="#"){ if(s[y].size()==2)continue; else return false; } s[y] = u[y].substr(0,2); t[y] = u[y].substr(2,1); used.push_back(y); if(!dfs2(SS1,y,t[y],used) || !dfs2(TT1,y,t[y],used) || !dfs2(SS2,y,s[y],used) || !dfs2(TT2,y,s[y],used)) return false; } } return true; } bool dfs(vi &unused){ // DEBUG_VEC(unused); if(unused.size()==0)return true; int id = unused[0]; string x = u[id]; vi used; bool ok; // cut a/bc used.push_back(id); s[id] = u[id].substr(0,1); t[id] = u[id].substr(1,2); ok = dfs2(SS1,id,s[id],used) && dfs2(TT1,id,s[id],used) && dfs2(SS2,id,t[id],used) && dfs2(TT2,id,t[id],used); if(ok){ sort(ALL(used)); vi nxt; int it = 0; for(int y:unused){ while(it<used.size() && used[it]<y)it++; if(it==used.size() || y!=used[it])nxt.push_back(y); } ok = dfs(nxt); } if(ok){ return true; }else{ for(int y:used)s[y]=t[y]="#"; } used.clear(); // cut ab/c used.push_back(id); s[id] = u[id].substr(0,2); t[id] = u[id].substr(2,1); ok = dfs2(SS1,id,t[id],used) && dfs2(TT1,id,t[id],used) && dfs2(SS2,id,s[id],used) && dfs2(TT2,id,s[id],used); if(ok){ sort(ALL(used)); vi nxt; int it = 0; for(int y:unused){ while(it<used.size() && used[it]<y)it++; if(it==used.size() || y!=used[it])nxt.push_back(y); } ok = dfs(nxt); } if(ok){ return true; }else{ for(int y:used)s[y]=t[y]="#"; } return false; } int main(){ scanf("%d",&n); REP(i,n)cin>>u[i]; if(n>=54){ puts("Impossible"); return 0; } REP(i,n){ string x = u[i]; string a = x.substr(0,1); string ab = x.substr(0,2); string bc = x.substr(1,2); string c = x.substr(2,1); S1[a].push_back(i); S2[ab].push_back(i); T1[c].push_back(i); T2[bc].push_back(i); // S1[a][bc].push_back(i); // S2[ab][c].push_back(i); // T1[c][ab].push_back(i); // T2[bc][a].push_back(i); } REP(i,n)s[i] = t[i] = "#"; vi unused(n); REP(i,n)unused[i]=i; if(dfs(unused)){ REP(i,n){ printf("%s %s\n",s[i].c_str(),t[i].c_str()); } }else{ puts("Impossible"); } return 0; }