結果
問題 | No.2100 [Cherry Alpha C] Two-way Steps |
ユーザー | moharan627 |
提出日時 | 2022-10-15 13:31:18 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 180 ms / 2,000 ms |
コード長 | 4,889 bytes |
コンパイル時間 | 5,699 ms |
コンパイル使用メモリ | 313,932 KB |
実行使用メモリ | 20,480 KB |
最終ジャッジ日時 | 2024-06-26 19:44:17 |
合計ジャッジ時間 | 11,878 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 2 ms
6,812 KB |
testcase_01 | AC | 3 ms
6,816 KB |
testcase_02 | AC | 3 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 133 ms
14,464 KB |
testcase_05 | AC | 106 ms
11,392 KB |
testcase_06 | AC | 21 ms
6,940 KB |
testcase_07 | AC | 26 ms
6,940 KB |
testcase_08 | AC | 132 ms
18,560 KB |
testcase_09 | AC | 104 ms
9,600 KB |
testcase_10 | AC | 55 ms
6,944 KB |
testcase_11 | AC | 100 ms
12,800 KB |
testcase_12 | AC | 73 ms
8,064 KB |
testcase_13 | AC | 83 ms
15,232 KB |
testcase_14 | AC | 63 ms
6,940 KB |
testcase_15 | AC | 87 ms
14,592 KB |
testcase_16 | AC | 70 ms
6,944 KB |
testcase_17 | AC | 61 ms
14,080 KB |
testcase_18 | AC | 90 ms
15,232 KB |
testcase_19 | AC | 161 ms
17,536 KB |
testcase_20 | AC | 35 ms
6,944 KB |
testcase_21 | AC | 72 ms
8,960 KB |
testcase_22 | AC | 69 ms
6,940 KB |
testcase_23 | AC | 120 ms
15,872 KB |
testcase_24 | AC | 171 ms
20,072 KB |
testcase_25 | AC | 173 ms
20,004 KB |
testcase_26 | AC | 173 ms
20,008 KB |
testcase_27 | AC | 171 ms
19,860 KB |
testcase_28 | AC | 174 ms
20,076 KB |
testcase_29 | AC | 170 ms
20,044 KB |
testcase_30 | AC | 168 ms
20,016 KB |
testcase_31 | AC | 180 ms
20,080 KB |
testcase_32 | AC | 171 ms
20,096 KB |
testcase_33 | AC | 175 ms
20,096 KB |
testcase_34 | AC | 93 ms
6,944 KB |
testcase_35 | AC | 83 ms
6,940 KB |
testcase_36 | AC | 82 ms
6,940 KB |
testcase_37 | AC | 76 ms
6,940 KB |
testcase_38 | AC | 89 ms
6,940 KB |
testcase_39 | AC | 67 ms
6,940 KB |
testcase_40 | AC | 67 ms
6,940 KB |
testcase_41 | AC | 66 ms
6,940 KB |
testcase_42 | AC | 66 ms
6,940 KB |
testcase_43 | AC | 66 ms
6,940 KB |
testcase_44 | AC | 112 ms
20,480 KB |
testcase_45 | AC | 109 ms
20,460 KB |
testcase_46 | AC | 109 ms
20,436 KB |
testcase_47 | AC | 110 ms
20,472 KB |
ソースコード
#if !__INCLUDE_LEVEL__ #include __FILE__ int main() { int N,M;cin >> N >> M; vl H(N);rep(i,N)cin >> H[i]; vvl Root(N); rep(m,M){ int X,Y;cin >> X >> Y; X-=1; Y-=1; Root[Y].emplace_back(X); } vvl DP(N+1,vl(2,-INF)); DP[0][0]=0; DP[0][1]=0; rep(j,N){ fore(i,Root[j]){ if(H[i]<H[j]){//登る場合 chmax(DP[j][1],DP[i][0]+H[j]-H[i]); } else{//下る場合 chmax(DP[j][0],DP[i][0]); chmax(DP[j][0],DP[i][1]); } } } ll ans1 = max(DP[N-1][0],DP[N-1][1]); if(ans1<0)cout << -1 << "\n"; else cout << ans1 << "\n"; vvl DP1(N+1,vl(2,-INF)); DP1[N-1][0]=0; DP1[N-1][1]=0; rrep(j,N){ fore(i,Root[j]){ if(H[i]>H[j]){//登る場合 chmax(DP1[i][1],DP1[j][0]+H[i]-H[j]); } else{//下る場合 chmax(DP1[i][0],DP1[j][0]); chmax(DP1[i][0],DP1[j][1]); } } } ll ans2 = max(DP1[0][0],DP1[0][1]); if(ans2<0)cout << -1 << "\n"; else cout << ans2 << "\n"; } #else //tie(a, b, c) = t #include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; #define rep(i, n) for(int i = 0; i < n; i++) #define rrep(i, n) for(int i = n-1; i >= 0; i--) #define range(i, m, n) for(int i = m; i < n; i++) #define fore(i,a) for(auto &i:a) #define all(v) v.begin(), v.end() #define rall(v) v.rbegin(), v.rend() #define Sum(v) accumulate(all(v),0LL) #define minv(v) *min_element(all(v)) #define maxv(v) *max_element(all(v)) typedef long long ll; typedef vector<ll> vl; typedef vector<vector<ll>> vvl; const ll INF = 1e16; const ll MOD1 = 1000000007; const ll MOD2 = 998244353; template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } ll SN(char s){return ll(s-'0');} ll SN(string s){return stoll(s);} int alpN(char s){return int(s-'a');} int AlpN(char s){return int(s-'A');} int Nalp(int n){return char(n+97);} int NAlp(int n){return char(n+65);} using Graph = vector<vector<ll>>; using GraphCost = vector<vector<pair<ll,ll>>>; using mint = modint; using mint1 = modint1000000007; using mint2 = modint998244353; using pll = pair<long long, long long>; template <class T>ostream &operator<<(ostream &o,const vector<T>&v){for(int i=0;i<(int)v.size();i++)o<<(i>0?" ":"")<<v[i];return o;}//vector空白区切り出力 ostream& operator<<(ostream& os, const mint1& N) {return os << N.val();}//mint出力。デフォはmint1 ostream& operator<<(ostream& os, const mint2& N) {return os << N.val();} template<class T> bool contain(const std::string& s, const T& v) { return s.find(v) != std::string::npos; } ll max(int x,ll y){return max((ll)x,y);} ll max(ll x,int y){return max(x,(ll)y);} ll min(int x,ll y){return min((ll)x,y);} ll min(ll x,int y){return min(x,(ll)y);} template <typename T> struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge& operator=(const int& x) { to = x; return *this; } operator int() const { return to; } }; template <typename T> using Edges = vector<edge<T> >; template <typename T> using WeightedGraph = vector<Edges<T> >; using UnWeightedGraph = vector<vector<int> >; template <typename T> using Matrix = vector<vector<T> >; //unorderd_mapの拡張…https://qiita.com/hamamu/items/4d081751b69aa3bb3557 template<class T> size_t HashCombine(const size_t seed,const T &v){ return seed^(std::hash<T>()(v)+0x9e3779b9+(seed<<6)+(seed>>2)); } /* pair用 */ template<class T,class S> struct std::hash<std::pair<T,S>>{ size_t operator()(const std::pair<T,S> &keyval) const noexcept { return HashCombine(std::hash<T>()(keyval.first), keyval.second); } }; /* vector用 */ template<class T> struct std::hash<std::vector<T>>{ size_t operator()(const std::vector<T> &keyval) const noexcept { size_t s=0; for (auto&& v: keyval) s=HashCombine(s,v); return s; } }; /* tuple用 */ template<int N> struct HashTupleCore{ template<class Tuple> size_t operator()(const Tuple &keyval) const noexcept{ size_t s=HashTupleCore<N-1>()(keyval); return HashCombine(s,std::get<N-1>(keyval)); } }; template <> struct HashTupleCore<0>{ template<class Tuple> size_t operator()(const Tuple &keyval) const noexcept{ return 0; } }; template<class... Args> struct std::hash<std::tuple<Args...>>{ size_t operator()(const tuple<Args...> &keyval) const noexcept { return HashTupleCore<tuple_size<tuple<Args...>>::value>()(keyval); } }; ll ceil(ll a, ll b){ return (a + b - 1) / b; } #endif