結果
問題 | No.1995 CHIKA Road |
ユーザー | recososo |
提出日時 | 2022-07-01 21:55:15 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 227 ms / 2,000 ms |
コード長 | 3,498 bytes |
コンパイル時間 | 4,981 ms |
コンパイル使用メモリ | 276,804 KB |
実行使用メモリ | 27,576 KB |
最終ジャッジ日時 | 2024-05-04 16:20:14 |
合計ジャッジ時間 | 7,760 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 10 ms
5,376 KB |
testcase_07 | AC | 37 ms
8,320 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 66 ms
7,540 KB |
testcase_11 | AC | 227 ms
27,576 KB |
testcase_12 | AC | 121 ms
15,732 KB |
testcase_13 | AC | 59 ms
11,384 KB |
testcase_14 | AC | 63 ms
11,900 KB |
testcase_15 | AC | 191 ms
24,748 KB |
testcase_16 | AC | 20 ms
5,632 KB |
testcase_17 | AC | 86 ms
13,248 KB |
testcase_18 | AC | 157 ms
19,880 KB |
testcase_19 | AC | 155 ms
19,696 KB |
testcase_20 | AC | 75 ms
12,304 KB |
testcase_21 | AC | 68 ms
11,500 KB |
testcase_22 | AC | 140 ms
18,780 KB |
testcase_23 | AC | 38 ms
8,320 KB |
testcase_24 | AC | 123 ms
16,884 KB |
testcase_25 | AC | 23 ms
6,272 KB |
testcase_26 | AC | 46 ms
9,196 KB |
testcase_27 | AC | 119 ms
16,472 KB |
testcase_28 | AC | 65 ms
11,504 KB |
testcase_29 | AC | 148 ms
19,164 KB |
testcase_30 | AC | 21 ms
6,272 KB |
testcase_31 | AC | 10 ms
5,376 KB |
testcase_32 | AC | 27 ms
6,944 KB |
testcase_33 | AC | 114 ms
16,328 KB |
testcase_34 | AC | 12 ms
5,376 KB |
testcase_35 | AC | 43 ms
8,704 KB |
testcase_36 | AC | 50 ms
9,744 KB |
testcase_37 | AC | 152 ms
17,980 KB |
testcase_38 | AC | 94 ms
14,168 KB |
testcase_39 | AC | 9 ms
5,376 KB |
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> using namespace std; using namespace atcoder; typedef long long ll; typedef long double ld; #define REP(i, n) for (int i = 0; i < (n); ++i) #define REPR(i, n) for (int i = n - 1; i >= 0; --i) #define FOR(i, m, n) for (int i = m; i < n; ++i) #define FORR(i, m, n) for (int i = m; i >= n; --i) #define ALL(v) (v).begin(),(v).end() #define ALLR(v) (v).rbegin(),(v).rend() #define fi first #define se second #define PB push_back #define EB emplace_back template<typename T> using PQ = priority_queue<T>; template<typename T> using QP = priority_queue<T,vector<T>,greater<T>>; template<typename T>void debug(const T &v,ll h,ll w){for(ll i=0;i<h;i++){for(ll j=0;j<w;j++)cerr<<v[i][j]<<" \n"[j==w-1];}}; template<typename T>void debug(const T &v,ll n){for(ll i=0;i<n;i++)cerr<<v[i]<<" \n"[i==n-1];}; template<typename T>void debug(const vector<T>&v){debug(v,v.size());} template<typename T>void debug(const vector<vector<T>>&v){for(auto &vv:v)debug(vv,vv.size());} template<typename T>void debug(stack<T> st){while(!st.empty()){cerr<<st.top()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(queue<T> st){while(!st.empty()){cerr<<st.front()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(deque<T> st){while(!st.empty()){cerr<<st.front()<<" ";st.pop_front();}cerr<<endl;} template<typename T>void debug(PQ<T> st){while(!st.empty()){cerr<<st.top()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(QP<T> st){while(!st.empty()){cerr<<st.top()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(const set<T>&v){for(auto z:v)cerr<<z<<" ";cerr<<endl;} template<typename T>void debug(const multiset<T>&v){for(auto z:v)cerr<<z<<" ";cerr<<endl;} template<typename T,size_t size>void debug(const array<T, size> &a){for(auto z:a)cerr<<z<<" ";cerr<<endl;} template<typename T,typename V>void debug(const map<T,V>&v){for(auto z:v)cerr<<"["<<z.first<<"]="<<z.second<<",";cerr<<endl;} void foo() {cerr << endl;} template <class Head, class... Tail>void foo(Head&& head, Tail&&... tail){cerr << head << " ";foo(move(tail)...);} template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } int popcount(ll x){return __builtin_popcountll(x);}; int poplow(ll x){return __builtin_ctzll(x);}; int pophigh(ll x){return 63 - __builtin_clzll(x);}; const ll INF=1LL<<60; const int inf=(1<<30)-1; // const int mod=1e9+7; const int mod=998244353; int dx[8]={1,0,-1,0,-1,-1,1,1}; int dy[8]={0,1,0,-1,-1,1,-1,1}; using mint=modint998244353; // using mint=modint1000000007; int main(){ cin.tie(0); ios::sync_with_stdio(false); int n,m;cin >> n >> m; vector<int> x; x.PB(0); x.PB(n-1); vector<int> a(m),b(m); REP(i,m){ cin >> a[i] >> b[i]; a[i]--,b[i]--; x.PB(a[i]); x.PB(b[i]); } sort(ALL(x)); x.erase(unique(ALL(x)),x.end()); map<int,int> mp; int xs=x.size(); REP(i,xs) mp[x[i]]=i; vector<vector<pair<int,int>>> e(xs); REP(i,xs-1) e[i].PB({i+1,(x[i+1]-x[i])*2}); REP(i,m){ e[mp[a[i]]].PB({mp[b[i]],(b[i]-a[i])*2-1}); } QP<pair<int,int>> q; vector<ll> d(xs,INF); d[0]=0; q.push({0,0}); while(!q.empty()){ auto [u,v]=q.top();q.pop(); for(auto [s,t]:e[v]){ if(chmin(d[s],d[v]+t)){ q.push({d[s],s}); } } } cout << d[xs-1] << endl; }