結果
問題 | No.1405 ジグザグロボット |
ユーザー | hotman78 |
提出日時 | 2021-04-05 13:21:45 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 8,511 bytes |
コンパイル時間 | 3,373 ms |
コンパイル使用メモリ | 250,292 KB |
実行使用メモリ | 41,088 KB |
最終ジャッジ日時 | 2024-06-09 20:23:19 |
合計ジャッジ時間 | 24,202 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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 | 1 ms
10,624 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 3 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,376 KB |
testcase_05 | AC | 5 ms
5,376 KB |
testcase_06 | AC | 4 ms
5,376 KB |
testcase_07 | AC | 4 ms
5,376 KB |
testcase_08 | AC | 67 ms
5,376 KB |
testcase_09 | AC | 261 ms
5,632 KB |
testcase_10 | AC | 522 ms
7,040 KB |
testcase_11 | AC | 489 ms
6,948 KB |
testcase_12 | AC | 532 ms
7,168 KB |
testcase_13 | AC | 565 ms
7,168 KB |
testcase_14 | AC | 539 ms
7,040 KB |
testcase_15 | AC | 514 ms
7,040 KB |
testcase_16 | AC | 483 ms
6,912 KB |
testcase_17 | AC | 523 ms
7,040 KB |
testcase_18 | AC | 563 ms
7,168 KB |
testcase_19 | AC | 583 ms
7,296 KB |
testcase_20 | AC | 540 ms
7,040 KB |
testcase_21 | AC | 656 ms
7,680 KB |
testcase_22 | AC | 549 ms
7,168 KB |
testcase_23 | AC | 598 ms
7,552 KB |
testcase_24 | AC | 583 ms
7,424 KB |
testcase_25 | AC | 88 ms
5,376 KB |
testcase_26 | AC | 468 ms
6,912 KB |
testcase_27 | AC | 909 ms
9,344 KB |
testcase_28 | AC | 962 ms
9,984 KB |
testcase_29 | AC | 644 ms
7,808 KB |
testcase_30 | AC | 1,114 ms
10,496 KB |
testcase_31 | TLE | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
ソースコード
#line 2 "cpplib/util/template.hpp" #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC target("avx2") #include<bits/stdc++.h> using namespace std; struct __INIT__{__INIT__(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);}}__INIT__; typedef long long lint; #define INF (1LL<<60) #define IINF (1<<30) #define EPS (1e-10) #define endl ('\n') typedef vector<lint> vec; typedef vector<vector<lint>> mat; typedef vector<vector<vector<lint>>> mat3; typedef vector<string> svec; typedef vector<vector<string>> smat; template<typename T>using V=vector<T>; template<typename T>using VV=V<V<T>>; template<typename T>inline void output(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i;f=1;}cout<<endl;} template<typename T>inline void output2(T t){for(auto i:t)output(i);} template<typename T>inline void debug(T t){bool f=0;for(auto i:t){cerr<<(f?" ":"")<<i;f=1;}cerr<<endl;} template<typename T>inline void debug2(T t){for(auto i:t)debug(i);} #define loop(n) for(long long _=0;_<(long long)(n);++_) #define _overload4(_1,_2,_3,_4,name,...) name #define __rep(i,a) repi(i,0,a,1) #define _rep(i,a,b) repi(i,a,b,1) #define repi(i,a,b,c) for(long long i=(long long)(a);i<(long long)(b);i+=c) #define rep(...) _overload4(__VA_ARGS__,repi,_rep,__rep)(__VA_ARGS__) #define _overload3_rev(_1,_2,_3,name,...) name #define _rep_rev(i,a) repi_rev(i,0,a) #define repi_rev(i,a,b) for(long long i=(long long)(b)-1;i>=(long long)(a);--i) #define rrep(...) _overload3_rev(__VA_ARGS__,repi_rev,_rep_rev)(__VA_ARGS__) // #define rep(i,...) for(auto i:range(__VA_ARGS__)) // #define rrep(i,...) for(auto i:reversed(range(__VA_ARGS__))) // #define repi(i,a,b) for(lint i=lint(a);i<(lint)(b);++i) // #define rrepi(i,a,b) for(lint i=lint(b)-1;i>=lint(a);--i) // #define irep(i) for(lint i=0;;++i) // inline vector<long long> range(long long n){if(n<=0)return vector<long long>();vector<long long>v(n);iota(v.begin(),v.end(),0LL);return v;} // inline vector<long long> range(long long a,long long b){if(b<=a)return vector<long long>();vector<long long>v(b-a);iota(v.begin(),v.end(),a);return v;} // inline vector<long long> range(long long a,long long b,long long c){if((b-a+c-1)/c<=0)return vector<long long>();vector<long long>v((b-a+c-1)/c);for(int i=0;i<(int)v.size();++i)v[i]=i?v[i-1]+c:a;return v;} // template<typename T>inline T reversed(T v){reverse(v.begin(),v.end());return v;} #define all(n) begin(n),end(n) template<typename T,typename E>bool chmin(T& s,const E& t){bool res=s>t;s=min<T>(s,t);return res;} template<typename T,typename E>bool chmax(T& s,const E& t){bool res=s<t;s=max<T>(s,t);return res;} const vector<lint> dx={1,0,-1,0,1,1,-1,-1}; const vector<lint> dy={0,1,0,-1,1,-1,1,-1}; #define SUM(v) accumulate(all(v),0LL) template<typename T,typename ...Args>auto make_vector(T x,int arg,Args ...args){if constexpr(sizeof...(args)==0)return vector<T>(arg,x);else return vector(arg,make_vector<T>(x,args...));} #define extrep(v,...) for(auto v:__MAKE_MAT__({__VA_ARGS__})) #define bit(n,a) ((n>>a)&1) vector<vector<long long>> __MAKE_MAT__(vector<long long> v){if(v.empty())return vector<vector<long long>>(1,vector<long long>());long long n=v.back();v.pop_back();vector<vector<long long>> ret;vector<vector<long long>> tmp=__MAKE_MAT__(v);for(auto e:tmp)for(long long i=0;i<n;++i){ret.push_back(e);ret.back().push_back(i);}return ret;} using graph=vector<vector<int>>; template<typename T>using graph_w=vector<vector<pair<int,T>>>; template<typename T,typename E>ostream& operator<<(ostream& out,pair<T,E>v){out<<"("<<v.first<<","<<v.second<<")";return out;} constexpr inline long long powll(long long a,long long b){long long res=1;while(b--)res*=a;return res;} #line 2 "code.cpp" int main(){ lint n,x,y; cin>>n>>x>>y; string s; cin>>s; vector<tuple<lint,lint,lint,lint,lint>>v; lint p=0,q=0,cnt=0,cnt_mx=0; vec edge; vector<lint>spos; vector<pair<lint,lint>> vv; priority_queue<tuple<lint,lint,lint,lint,lint>,vector<tuple<lint,lint,lint,lint,lint>>,greater<tuple<lint,lint,lint,lint,lint>>>que; rep(i,n){ if(s[i]=='S'){ spos.push_back(i); edge.push_back(cnt); vv.push_back(make_pair(p,q)); cnt++;cnt_mx++; p=q=0; } if(s[i]=='R'){ q++; chmin(p,q); } if(s[i]=='L'){ q--; chmin(p,q); } } edge.push_back(cnt); vv.push_back(make_pair(p,q)); cnt++;cnt_mx++; auto get=[&](pair<lint,lint>x){ return x.second-x.first; }; auto merge=[&](pair<lint,lint>s,pair<lint,lint>t){ return make_pair(min(s.first,s.second+t.first),s.second+t.second); }; rep(i,cnt-1){ que.emplace(get(merge(vv[i],vv[i+1]))-get(vv[i])-get(vv[i+1]),i,i,i+1,i+1); } auto dp=make_vector<lint>(-INF,cnt+1,y+2); auto pre=make_vector<lint>(-1,cnt+1,y+2); dp[0][0]=0; rep(k,y+1)rep(i,cnt){ auto now=make_pair(0LL,0LL); rep(j,i,cnt){ now=merge(now,vv[j]); if(chmax(dp[j+1][k+1],dp[i][k]+(now.second-now.first))){ pre[j+1][k+1]=i; } } } vec vvv,ll,rr; { lint now=cnt; for(lint i=y+1;i>=1;--i){ auto tmp=make_pair(0LL,0LL); for(int j=pre[now][i];j<now;++j){ tmp=merge(tmp,vv[j]); } vvv.push_back(tmp.second-tmp.first); ll.push_back(pre[now][i]); rr.push_back(now); now=pre[now][i]; } } reverse(all(vvv)); reverse(all(ll)); reverse(all(rr)); // while(cnt>y+1){ // auto [cost,l,r,p,q]=que.top(); // que.pop(); // if(edge[l]!=r||edge[r]!=l){ // continue; // } // if(edge[p]!=q||edge[q]!=p){ // continue; // } // cnt--; // if(r+1==p){ // edge[l]=q; // edge[q]=l; // if(l!=r)edge[r]=-1; // if(p!=q)edge[p]=-1; // vv[l]=vv[q]=merge(vv[l],vv[q]); // if(l!=r)vv[r]=make_pair(-1,-1); // if(p!=q)vv[p]=make_pair(-1,-1); // if(l!=0){ // que.emplace(get(merge(vv[l],vv[l-1]))-get(vv[l])-get(vv[l-1]),l,q,edge[l-1],l-1); // } // if(q!=cnt_mx-1){ // que.emplace(get(merge(vv[q],vv[q+1]))-get(vv[q])-get(vv[q+1]),l,q,q+1,edge[q+1]); // } // }else{ // edge[r]=p; // edge[p]=r; // if(l!=r)edge[l]=-1; // if(p!=q)edge[q]=-1; // vv[r]=vv[p]=merge(vv[r],vv[p]); // if(l!=r)vv[l]=make_pair(-1,-1); // if(p!=q)vv[q]=make_pair(-1,-1); // if(p!=0){ // que.emplace(get(merge(vv[p],vv[p-1]))-get(vv[p])-get(vv[p-1]),p,r,edge[p-1],p-1); // } // if(r!=cnt_mx-1){ // que.emplace(get(merge(vv[r],vv[r+1]))-get(vv[r])-get(vv[r+1]),p,r,r+1,edge[r+1]); // } // } // } vector<pair<lint,lint>> ans; ans.emplace_back(-1,0); lint nx=0; for(int ny=0;ny<=y;++ny){ lint px=nx; if(nx==x){ ans.emplace_back(x-1,ny); ans.emplace_back(x+1,ny); }else if(nx+vvv[ny]>x){ lint p=0,q=0,r=0; rep(i,ll[ny],rr[ny]){ if(s[i]=='R'){ q++; chmax(r,q); if(chmin(p,q)){ r=0; } } if(s[i]=='L'){ q--; chmax(r,q); if(chmin(p,q)){ r=0; } } } nx=x; rep(i,px-1,nx){ ans.emplace_back(i,ny+1); } rep(i,0,ny+1)ans.emplace_back(x+r-q+1,i); rep(i,x+1,x+r-q+1)ans.emplace_back(i,ny+1); }else{ nx+=vvv[ny]; rep(i,px-1,nx){ ans.emplace_back(i,ny+1); } } } rep(i,n)ans.emplace_back(i,y+1); if(x!=nx){ cout<<-1<<endl; return 0; } cout<<ans.size()<<endl; for(auto [s,t]:ans){ cout<<s<<" "<<t<<endl; } // vector<string> ma(n+2,string(n+1,'.')); // for(auto [nx,ny]:ans){ // ma[ny][nx+1]='#'; // } // rep(i,n+2){ // cout<<ma[i]<<endl; // } }