結果

問題 No.1473 おでぶなおばけさん
ユーザー tsuyu93tsuyu93
提出日時 2021-04-10 01:26:12
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 155 ms / 2,000 ms
コード長 10,619 bytes
コンパイル時間 4,706 ms
コンパイル使用メモリ 231,904 KB
実行使用メモリ 20,696 KB
最終ジャッジ日時 2023-09-07 20:25:58
合計ジャッジ時間 9,908 ms
ジャッジサーバーID
（参考情報） 		judge12 / judge11
このコードへのチャレンジ
（要ログイン）

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
4,380 KB
testcase_01 AC 1 ms
4,380 KB
testcase_02 AC 154 ms
19,716 KB
testcase_03 AC 120 ms
16,828 KB
testcase_04 AC 73 ms
12,476 KB
testcase_05 AC 22 ms
6,564 KB
testcase_06 AC 131 ms
17,424 KB
testcase_07 AC 155 ms
20,696 KB
testcase_08 AC 147 ms
20,580 KB
testcase_09 AC 146 ms
20,456 KB
testcase_10 AC 37 ms
9,904 KB
testcase_11 AC 39 ms
11,368 KB
testcase_12 AC 39 ms
10,656 KB
testcase_13 AC 22 ms
7,656 KB
testcase_14 AC 17 ms
6,144 KB
testcase_15 AC 32 ms
9,648 KB
testcase_16 AC 35 ms
9,256 KB
testcase_17 AC 4 ms
4,384 KB
testcase_18 AC 6 ms
4,380 KB
testcase_19 AC 49 ms
9,956 KB
testcase_20 AC 87 ms
15,224 KB
testcase_21 AC 77 ms
13,412 KB
testcase_22 AC 112 ms
18,064 KB
testcase_23 AC 88 ms
16,060 KB
testcase_24 AC 81 ms
15,604 KB
testcase_25 AC 107 ms
17,768 KB
testcase_26 AC 119 ms
18,020 KB
testcase_27 AC 31 ms
8,404 KB
testcase_28 AC 122 ms
20,012 KB
testcase_29 AC 83 ms
13,476 KB
testcase_30 AC 98 ms
15,092 KB
testcase_31 AC 126 ms
19,944 KB
testcase_32 AC 109 ms
17,384 KB
testcase_33 AC 84 ms
15,104 KB
testcase_34 AC 40 ms
9,500 KB
testcase_35 AC 41 ms
9,188 KB
testcase_36 AC 65 ms
13,112 KB
testcase_37 AC 83 ms
15,184 KB
testcase_38 AC 14 ms
5,536 KB
testcase_39 AC 33 ms
9,340 KB
testcase_40 AC 34 ms
9,332 KB
testcase_41 AC 31 ms
8,720 KB
testcase_42 AC 30 ms
8,692 KB
testcase_43 AC 59 ms
16,976 KB
testcase_44 AC 58 ms
17,036 KB
testcase_45 AC 58 ms
17,028 KB
testcase_46 AC 71 ms
14,996 KB
testcase_47 AC 86 ms
17,344 KB
testcase_48 AC 78 ms
16,040 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

/*
          author:ryo3ihara
            　　”継続は力なり、雨だれ石を穿つ”
            　　　　　　”slow but steady wins the race”
*/

#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>

//#include<atcoder/all>
//using namespace atcoder;

/*
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
namespace mpb = boost::multiprecision;
using bint = mpb::cpp_int;
// 仮数部が1024ビットの浮動小数点数型(TLEしたら小さくする)
using Real = mpb::number<mpb::cpp_dec_float<1024>>;
*/
#ifdef __HOGE__
#pragma region macro
#endif
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
using uint = unsigned;
using pll = pair<ll, ll>;
using pli = pair<ll, int>;
using pii = pair<int, int>;
using pld = pair<ll, ld>;
using ppiii =  pair<pii, int>;
using ppiill = pair<pii, ll>;
using ppllll = pair<pll, ll>;
using pplii = pair<pli, int>;
using mii = map<int, int>;
using dll = deque<ll>;
using qll = queue<ll>;
using pqll = priority_queue<ll>;
using pqrll = priority_queue<ll, vector<ll>, greater<ll>>;
using pqrpll = priority_queue<pll, vector<pll>, greater<pll>>;
using vint = vector<int>;
using vbool = vector<bool>;
using vstr = vector<string>;
using vll = vector<ll>;
using vpll = vector<pll>;
using vvll = vector<vector<ll>>;
using vvint = vector<vector<int>>;
using vvbool = vector<vbool>;
using vvstr = vector<vstr>;
using vvpll = vector<vector<pll>>;
#define REP(i,n) for(ll i=0;i<ll(n);i++)
#define REPD(i,n) for(ll i=n-1;i>=0;i--)
#define FOR(i,a,b) for(ll i=a;i<=ll(b);i++)
#define FORD(i,a,b) for(ll i=a;i>=ll(b);i--)
#define overload4(_1,_2,_3,_4,name,...) name
#define overload3(_1,_2,_3,name,...) name
#define rep1(n) for(ll i=0;i<n;++i)
#define rep2(i,n) for(ll i=0;i<n;++i)
#define rep3(i,a,b) for(ll i=a;i<b;++i)
#define rep4(i,a,b,c) for(ll i=a;i<b;i+=c)
#define rep(...) overload4(__VA_ARGS__,rep4,rep3,rep2,rep1)(__VA_ARGS__)
#define rrep1(n) for(ll i=n;i--;)
#define rrep2(i,n) for(ll i=n;i--;)
#define rrep3(i,a,b) for(ll i=b;i-->(a);)
#define rrep4(i,a,b,c) for(ll i=(a)+((b)-(a)-1)/(c)*(c);i>=(a);i-=c)
#define rrep(...) overload4(__VA_ARGS__,rrep4,rrep3,rrep2,rrep1)(__VA_ARGS__)
#define each1(i,a) for(auto&&i:a)
#define each2(x,y,a) for(auto&&[x,y]:a)
#define each3(x,y,z,a) for(auto&&[x,y,z]:a)
#define each(...) overload4(__VA_ARGS__,each3,each2,each1)(__VA_ARGS__)
#define all1(i) begin(i),end(i)
#define all2(i,a) begin(i),begin(i)+a
#define all3(i,a,b) begin(i)+a,begin(i)+b
#define all(...) overload3(__VA_ARGS__,all3,all2,all1)(__VA_ARGS__)
#define rall1(i) (i).rbegin(),(i).rend()
#define rall2(i,k) (i).rbegin(),(i).rbegin()+k
#define rall3(i,a,b) (i).rbegin()+a,(i).rbegin()+b
#define rall(...) overload3(__VA_ARGS__,rall3,rall2,rall1)(__VA_ARGS__)
#define SUM(...) accumulate(all(__VA_ARGS__),0LL)
#define ALL(x) x.begin(),x.end() 
#define rALL(x) x.rbegin(),x.rend() 
#define SIZE(x) ll(x.size()) 
#define Sort(a) sort(all(a))
#define INT(...) int __VA_ARGS__;in(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__;in(__VA_ARGS__)
#define ULL(...) ull __VA_ARGS__;in(__VA_ARGS__)
#define STR(...) string __VA_ARGS__;in(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__;in(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__;in(__VA_ARGS__)
#define LD(...) ld __VA_ARGS__;in(__VA_ARGS__)int scan(){ return getchar(); }
#define fs first
#define sc second
#define endl '\n'
#define elif else if
void scan(int& a){ scanf("%d", &a); }
void scan(unsigned& a){ scanf("%u", &a); }
void scan(long& a){ scanf("%ld", &a); }
void scan(long long& a){ scanf("%lld", &a); }
void scan(unsigned long long& a){ scanf("%llu", &a); }
void scan(char& a){ do{ a = getchar(); }while(a == ' ' || a == '\n'); }
void scan(float& a){ scanf("%f", &a); }
void scan(double& a){ scanf("%lf", &a); }
void scan(long double& a){ scanf("%Lf", &a); }
void scan(vector<bool>& a){ for(unsigned i = 0; i < a.size(); i++){ int b; scan(b); a[i] = b; } }
void scan(char a[]){ scanf("%s", a); }
void scan(string& a){ cin >> a; }
template<class T> void scan(vector<T>&);
template<class T, size_t size> void scan(array<T, size>&);
template<class T, class L> void scan(pair<T, L>&);
template<class T, size_t size> void scan(T(&)[size]);
template<class T> void scan(vector<T>& a){ for(auto&& i : a) scan(i); }
template<class T> void scan(deque<T>& a){ for(auto&& i : a) scan(i); }
template<class T, size_t size> void scan(array<T, size>& a){ for(auto&& i : a) scan(i); }
template<class T, class L> void scan(pair<T, L>& p){ scan(p.first); scan(p.second); }
template<class T, size_t size> void scan(T (&a)[size]){ for(auto&& i : a) scan(i); }
template<class T> void scan(T& a){ cin >> a; }
void in(){}
template <class Head, class... Tail> void in(Head& head, Tail&... tail){ scan(head); in(tail...); }
void print(){ putchar(' '); }
void print(bool a){ printf("%d", a); }
void print(int a){ printf("%d", a); }
void print(unsigned a){ printf("%u", a); }
void print(long a){ printf("%ld", a); }
void print(long long a){ printf("%lld", a); }
void print(unsigned long long a){ printf("%llu", a); }
void print(char a){ printf("%c", a); }
void print(char a[]){ printf("%s", a); }
void print(const char a[]){ printf("%s", a); }
void print(float a){ printf("%.15f", a); }
void print(double a){ printf("%.15f", a); }
void print(long double a){ printf("%.15Lf", a); }
void print(const string& a){ for(auto&& i : a) print(i); }
template<class T> void print(const complex<T>& a){ if(a.real() >= 0) print('+'); print(a.real()); if(a.imag() >= 0) print('+'); print(a.imag()); print('i'); }
template<class T> void print(const vector<T>&);
template<class T, size_t size> void print(const array<T, size>&);
template<class T, class L> void print(const pair<T, L>& p);
template<class T, size_t size> void print(const T (&)[size]);
template<class T> void print(const vector<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<class T> void print(const deque<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<class T, size_t size> void print(const array<T, size>& a){ print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<class T, class L> void print(const pair<T, L>& p){ print(p.first); putchar(' '); print(p.second); }
template<class T, size_t size> void print(const T (&a)[size]){ print(a[0]); for(auto i = a; ++i != end(a); ){ putchar(' '); print(*i); } }
template<class T> void print(const T& a){ cout << a; }
int out(){ putchar('\n'); return 0; }
template<class T> int out(const T& t){ print(t); putchar('\n'); return 0; }
template<class Head, class... Tail> int out(const Head& head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; }
#ifdef DEBUG
inline ll __lg(ull x){ return 63 - __builtin_clzll(x); }
#define debug(...) { print(#__VA_ARGS__); print(":"); out(__VA_ARGS__); }
#else
#define debug(...) void(0)
#endif
#define INF32 2147483647 //2.147483647x10^{9}:32bit整数のinf
#define INF64 9223372036854775807 //9.223372036854775807x10^{18}:64bit整数のinf
const ll MOD = 1000000007;
const int inf = 1e9;
const ll INF = 1e18;
const ll MAXR = 100000; //10^5:配列の最大のrange
const ld PI=3.1415926535897932;
inline void Yes(bool b = true) { cout << (b ? "Yes" : "No") << '\n'; }
inline void YES(bool b = true) { cout << (b ? "YES" : "NO") << '\n'; }
inline void OKNG(bool b = true) { cout << (b ? "OK" : "NG") << '\n'; }
inline void possible(bool i = true){ cout << (i?"possible":"impossible") << '\n'; }
inline void Possible(bool i = true){ cout << (i?"Possible":"Impossible") << '\n'; }
inline void POSSIBLE(bool i = true){ cout << (i?"POSSIBLE":"IMPOSSIBLE") << '\n'; }
template<typename A, typename B> inline bool chmin(A& a, B b) {if (a > b) {a = b;return true;}return false;}
template<typename A, typename B> inline bool chmax(A& a, B b) {if (a < b) {a = b;return true;}return false;}
template<typename A, typename B> A min(A a, B b) {if (a < b) {return a;}return b;}
template<typename A, typename B> A max(A a, B b) {if (a > b) {return a;}return b;}
template<class T> auto min(const T& a){ return *min_element(a.begin(),a.end()); }
template<class T> auto max(const T& a){ return *max_element(a.begin(),a.end()); }
template<typename A> A power(A a, A b) {A res=1;while (b>0) {if (b&1){res*=a;}b/=2;a*=a;}return res;}
long long powmod(long long a, long long b) {long long res=1;while (b>0) {if (b&1){res*=a;res%=MOD;}b/=2;a*=a;a%=MOD;}return res;}
template<typename A> A powmod(A a, A b,A m) {A res=1;while (b>0) {if (b&1){res*=a;res%=m;}b/=2;a*=a;a%=m;}return res;}
template<typename A> A nlcm(vector<A> a) {A res;res = a[0];for (ll i = 1; i < (ll)a.size(); i++) {res = lcm(res, a[i]);}return res;}
template<typename A> A ngcd(vector<A> a){A res;res = a[0];for(ll i = 1; i < (ll)a.size() && res != 1; i++) {res = gcd(a[i], res);}return res;}
#ifdef __HOGE__
#pragma endregion
#endif

vector<long long> shortest_path_unweighted(vector<vector<long long>> &G, long long s){
    long long N = G.size();
    vector<long long> dist(N,INF);
    dist[s]=0;
    queue<pair<long long,long long>> que;
    que.push({0,s});

    while(que.size()){
        auto[val,idx] = que.front();que.pop();
        if (dist[idx] < val)continue;
        for(auto nidx : G[idx]){
            if(dist[nidx] > val + 1){
                que.push({val + 1, nidx});
                dist[nidx] = val + 1;
            }
        }
    }
    return dist;
}

signed main(){
    //入力の高速化用のコード
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    //cout << fixed << setprecision(20);

    //入力
    ll N,M;
    cin >> N >> M;

    vvpll G(N);
    vector<tuple<ll,ll,ll>> Edges(M);
    rep(i,M){
      ll s,t,d;
      cin >> s >> t >> d;
      s--;t--;
      G[s].emplace_back(d,t);
      G[t].emplace_back(d,s);
      Edges[i] = {s,t,d};
    }

    vll weight(N,0);
    weight[0] = INF;
    priority_queue<pll> pq;
    pq.emplace(INF,0);

    while(pq.size()){
      auto[w,now] = pq.top();pq.pop();
      if(weight[now] > w)continue;
      for(auto [nw, to] : G[now]){
        if(min(nw,w) > weight[to]){
          chmax(weight[to],min(nw,w));
          pq.emplace(min(nw,w),to);
        }
      }
    }

    ll limit = weight[N-1];
    cout << limit << " ";

    vvll G2(N);
    rep(i,M){
      auto[s,t,d] = Edges[i];
      if(d<limit)continue;
      G2[s].push_back(t);
      G2[t].push_back(s);
    }

    auto dist = shortest_path_unweighted(G2,0);
    cout << dist[N-1] << endl;


  return 0;
}
0