結果
問題 | No.807 umg tours |
ユーザー | sak |
提出日時 | 2020-06-22 00:20:04 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,435 bytes |
コンパイル時間 | 2,487 ms |
コンパイル使用メモリ | 223,752 KB |
実行使用メモリ | 22,768 KB |
最終ジャッジ日時 | 2024-07-03 18:29:04 |
合計ジャッジ時間 | 7,868 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 2 ms
6,812 KB |
testcase_01 | WA | - |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | WA | - |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,944 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | AC | 260 ms
13,732 KB |
testcase_21 | AC | 271 ms
14,296 KB |
testcase_22 | AC | 115 ms
7,936 KB |
testcase_23 | AC | 93 ms
6,940 KB |
testcase_24 | AC | 260 ms
16,884 KB |
testcase_25 | WA | - |
ソースコード
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, ll> p_ll; template<class T> void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; } #define repr(i,from,to) for (int i=(int)from; i<(int)to; i++) #define all(vec) vec.begin(), vec.end() #define rep(i,N) repr(i,0,N) #define per(i,N) for (int i=(int)N-1; i>=0; i--) const ll MOD = pow(10,9)+7; const ll LLINF = pow(2,61)-1; const int INF = pow(2,30)-1; vector<ll> fac; void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; } ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; } ll nck(ll n, ll k) { return fac[n]*inv(fac[k]*fac[n-k]%MOD)%MOD; } ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); } ll lcm(ll a, ll b) { return a/gcd(a,b)*b; } // ---------------------------------------------------------------------- // ---------------------------------------------------------------------- struct edge { ll to, d; }; vector<vector<edge>> adj; vector<ll> dijkstra_1(int n=0) { int N = adj.size(); auto c = [](const p_ll &x, const p_ll &y){return x.second>y.second;}; priority_queue<p_ll, vector<p_ll>, decltype(c)> q(c); vector<ll> result(N,LLINF); result[n] = 0; q.push(make_pair(n,0)); while(q.size()) { p_ll now = q.top(); q.pop(); ll np = now.first, nd = now.second; if (nd>result[np]) continue; for (auto x: adj[np]) { if (result[x.to]<=result[np]+x.d) continue; q.push(make_pair(x.to, result[np]+x.d)); result[x.to] = result[np]+x.d; } } return result; } struct road { ll d, m; bool operator< (const road &x) const { return d-m<x.d-x.m||(d-m==x.d-x.m&&m<x.m); }; bool operator<= (const road &x) const { return d-m<x.d-x.m||(d-m==x.d-x.m&&m<=x.m); }; bool operator> (const road &x) const { return d-m>x.d-x.m||(d-m==x.d-x.m&&m>x.m); }; bool operator>= (const road &x) const { return d-m>x.d-x.m||(d-m==x.d-x.m&&m>=x.m); }; }; vector<ll> dijkstra_2(int n=0) { int N = adj.size(); auto c = [](const pair<ll, road> &x, const pair<ll, road> &y){return x.second>y.second;}; priority_queue<pair<ll, road>, vector<pair<ll, road>>, decltype(c)> q(c); vector<road> rtmp(N,{LLINF,0}); rtmp[n].d = 0; q.push(make_pair(n,(road){0,0})); while(q.size()) { pair<ll, road> now = q.top(); q.pop(); ll np = now.first; road nd = now.second; if (nd>rtmp[np]) continue; for (auto x: adj[np]) { if (rtmp[x.to]<=(road){rtmp[np].d+x.d, max(x.d,rtmp[np].m)}) continue; q.push(make_pair(x.to, (road){rtmp[np].d+x.d, max(x.d,rtmp[np].m)})); rtmp[x.to].d = rtmp[np].d+x.d; rtmp[x.to].m = max(x.d,rtmp[np].m); } } // rep(i,N) cout << rtmp[i].d << "-" << rtmp[i].m << " "; cout << endl; vector<ll> result(N); rep(i,N) result[i] = rtmp[i].d - rtmp[i].m; return result; } // ---------------------------------------------------------------------- // ---------------------------------------------------------------------- int main() { ll N, M; cin >> N >> M; adj.resize(N); rep(i,M) { ll a, b, c; cin >> a >> b >> c; a--; b--; adj[a].push_back({b,c}); adj[b].push_back({a,c}); } vector<ll> d1 = dijkstra_1(), d2 = dijkstra_2(); // debug(all(d1)); debug(all(d2)); rep(i,N) cout << d1[i] + d2[i] << endl; return 0; }