結果
問題 | No.1995 CHIKA Road |
ユーザー | shu8Cream |
提出日時 | 2022-07-01 22:07:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 196 ms / 2,000 ms |
コード長 | 4,065 bytes |
コンパイル時間 | 2,541 ms |
コンパイル使用メモリ | 223,324 KB |
実行使用メモリ | 38,556 KB |
最終ジャッジ日時 | 2024-11-26 05:17:03 |
合計ジャッジ時間 | 6,620 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 1 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 12 ms
5,504 KB |
testcase_07 | AC | 38 ms
10,832 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 76 ms
15,376 KB |
testcase_11 | AC | 196 ms
38,556 KB |
testcase_12 | AC | 94 ms
23,832 KB |
testcase_13 | AC | 57 ms
15,220 KB |
testcase_14 | AC | 60 ms
15,664 KB |
testcase_15 | AC | 178 ms
34,332 KB |
testcase_16 | AC | 19 ms
7,040 KB |
testcase_17 | AC | 88 ms
18,888 KB |
testcase_18 | AC | 145 ms
28,956 KB |
testcase_19 | AC | 150 ms
28,952 KB |
testcase_20 | AC | 74 ms
17,292 KB |
testcase_21 | AC | 68 ms
16,104 KB |
testcase_22 | AC | 135 ms
27,500 KB |
testcase_23 | AC | 40 ms
11,120 KB |
testcase_24 | AC | 119 ms
24,732 KB |
testcase_25 | AC | 24 ms
7,700 KB |
testcase_26 | AC | 50 ms
12,416 KB |
testcase_27 | AC | 112 ms
23,988 KB |
testcase_28 | AC | 72 ms
16,104 KB |
testcase_29 | AC | 144 ms
28,100 KB |
testcase_30 | AC | 22 ms
7,640 KB |
testcase_31 | AC | 11 ms
5,376 KB |
testcase_32 | AC | 31 ms
8,952 KB |
testcase_33 | AC | 116 ms
23,388 KB |
testcase_34 | AC | 12 ms
5,760 KB |
testcase_35 | AC | 44 ms
11,724 KB |
testcase_36 | AC | 53 ms
13,312 KB |
testcase_37 | AC | 136 ms
26,436 KB |
testcase_38 | AC | 97 ms
20,284 KB |
testcase_39 | AC | 10 ms
5,376 KB |
コンパイルメッセージ
main.cpp: In function 'int main()': main.cpp:126:31: warning: narrowing conversion of 'cmp.std::vector<long long int, std::allocator<long long int> >::operator[](((std::vector<long long int, std::allocator<long long int> >::size_type)((i * 2) + 1)))' from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' [-Wnarrowing] 126 | to[cmp[i*2]].push_back({cmp[i*2+1], cst}); | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:127:33: warning: narrowing conversion of 'cmp.std::vector<long long int, std::allocator<long long int> >::operator[](((std::vector<long long int, std::allocator<long long int> >::size_type)(i * 2)))' from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' [-Wnarrowing] 127 | to[cmp[i*2+1]].push_back({cmp[i*2], cst}); | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
ソースコード
/** * author: shu8Cream * created: 01.07.2022 21:48:29 **/ #include <bits/stdc++.h> using namespace std; #define overload3(a,b,c,d,...) d #define rep1(i,n) for (int i=0; i<(n); i++) #define rep2(i,a,n) for (int i=(a); i<(n); i++) #define rep(...) overload3(__VA_ARGS__, rep2, rep1)(__VA_ARGS__) #define rrep1(i,n) for (int i=(n-1); i>=0; i--) #define rrep2(i,a,n) for (int i=(n-1); i>=(a); i--) #define rrep(...) overload3(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define sz(x) int((x).size()) #define pcnt __builtin_popcountll using ll = long long; using P = pair<ll,ll>; template<typename T> using vc = vector<T>; template<typename T> using vv = vc<vc<T>>; using vi = vc<ll>; using vvi = vv<ll>; const ll INF = 8e18; template<typename T>istream& operator>>(istream&i,vc<T>&v){rep(j,sz(v))i>>v[j];return i;} template<typename T>string join(const T&v,const string& d=""){stringstream s;rep(i,sz(v))(i?s<<d:s)<<v[i];return s.str();} template<typename T>ostream& operator<<(ostream&o,const vc<T>&v){if(sz(v))o<<join(v," ");return o;} template<typename T1,typename T2>istream& operator>>(istream&i,pair<T1,T2>&v){return i>>v.first>>v.second;} template<typename T1,typename T2>ostream& operator<<(ostream&o,const pair<T1,T2>&v){return o<<v.first<<","<<v.second;} template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> string to_string(T s); template <class S, class T> string to_string(pair<S, T> p); string to_string(char c) { return string(1, c); } string to_string(string s) { return s; } string to_string(const char s[]) { return string(s); } template <class T> string to_string(T v) { if (v.empty()) return "{}"; string ret = "{"; for (auto x : v) ret += to_string(x) + ","; ret.back() = '}'; return ret; } template <class S, class T> string to_string(pair<S, T> p) { return "{" + to_string(p.first) + ":" + to_string(p.second) + "}"; } void debug_out() { cout << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cout << to_string(H) << " "; debug_out(T...); } #ifdef _DEBUG #define debug(...) debug_out(__VA_ARGS__) #else #define debug(...) #endif template <typename T> vector<T> compress(vector<T> a){ auto b = a; sort(all(b)); b.erase(unique(all(b)), b.end()); for(auto &p:a) p = lower_bound(all(b),p) - b.begin(); return a; } struct edge {int to; ll cost; int id=0;}; vi dist; // 最短経路木 vc<int> tree; // edges:グラフ, V:頂点数, s:始点 を与える void dijkstra(vv<edge> &edges, int V, int s){ dist.resize(V,INF); dist[s] = 0; priority_queue<P, vector<P>, greater<P>> q; tree.resize(V-1); q.push(P(0, s)); while (!q.empty()) { P p = q.top(); q.pop(); int v = p.second; if (dist[v] < p.first) continue; for (auto e : edges[v]) { if (dist[e.to] > dist[v] + e.cost) { dist[e.to] = dist[v] + e.cost; q.push(P(dist[e.to], e.to)); tree[e.to-1] = e.id+1; } } } } int main() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); ll n,m; cin >> n >> m; vi c; rep(i,m){ int a,b; cin >> a >> b; c.push_back(a); c.push_back(b); } c.push_back(1); c.push_back(n); auto cmp = compress(c); int len = *max_element(all(cmp))+1; vv<edge> to(len); rep(i,m){ ll cst = c[i*2+1]*2-c[i*2]*2-1; to[cmp[i*2]].push_back({cmp[i*2+1], cst}); to[cmp[i*2+1]].push_back({cmp[i*2], cst}); } sort(all(c)); c.erase(unique(all(c)),c.end()); rep(i,sz(c)-1){ ll cst = (c[i+1]-c[i])*2; to[i].push_back({i+1,cst}); to[i+1].push_back({i,cst}); } dijkstra(to,sz(c),0); cout << dist[sz(c)-1] << endl; }