結果
問題 | No.848 なかよし旅行 |
ユーザー | heno239 |
提出日時 | 2020-06-20 09:09:55 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,893 bytes |
コンパイル時間 | 1,100 ms |
コンパイル使用メモリ | 122,312 KB |
実行使用メモリ | 25,276 KB |
最終ジャッジ日時 | 2024-07-03 16:54:47 |
合計ジャッジ時間 | 3,309 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 150 ms
25,276 KB |
testcase_01 | AC | 7 ms
19,916 KB |
testcase_02 | WA | - |
testcase_03 | AC | 7 ms
19,912 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | AC | 7 ms
19,912 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
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 | 10 ms
20,040 KB |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | AC | 7 ms
19,912 KB |
testcase_27 | AC | 7 ms
19,968 KB |
testcase_28 | AC | 7 ms
19,840 KB |
testcase_29 | AC | 6 ms
19,912 KB |
ソースコード
#include<iostream> #include<string> #include<cstdio> #include<vector> #include<cmath> #include<algorithm> #include<functional> #include<iomanip> #include<queue> #include<ciso646> #include<random> #include<map> #include<set> #include<bitset> #include<stack> #include<unordered_map> #include<utility> #include<cassert> #include<complex> #include<numeric> using namespace std; //#define int long long typedef long long ll; typedef unsigned long long ul; typedef unsigned int ui; constexpr ll mod = 1000000007; const ll INF = mod * mod; typedef pair<int, int>P; #define stop char nyaa;cin>>nyaa; #define rep(i,n) for(int i=0;i<n;i++) #define per(i,n) for(int i=n-1;i>=0;i--) #define Rep(i,sta,n) for(int i=sta;i<n;i++) #define rep1(i,n) for(int i=1;i<=n;i++) #define per1(i,n) for(int i=n;i>=1;i--) #define Rep1(i,sta,n) for(int i=sta;i<=n;i++) #define all(v) (v).begin(),(v).end() typedef pair<ll, ll> LP; typedef long double ld; typedef pair<ld, ld> LDP; const ld eps = 1e-12; const ld pi = acos(-1.0); ll mod_pow(ll x, ll n) { ll res = 1; while (n) { if (n & 1)res = res * x%mod; x = x * x%mod; n >>= 1; } return res; } struct modint { ll n; modint() :n(0) { ; } modint(ll m) :n(m) { if (n >= mod)n %= mod; else if (n < 0)n = (n%mod + mod) % mod; } operator int() { return n; } }; bool operator==(modint a, modint b) { return a.n == b.n; } modint operator+=(modint &a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; } modint operator-=(modint &a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; } modint operator*=(modint &a, modint b) { a.n = ((ll)a.n*b.n) % mod; return a; } modint operator+(modint a, modint b) { return a += b; } modint operator-(modint a, modint b) { return a -= b; } modint operator*(modint a, modint b) { return a *= b; } modint operator^(modint a, int n) { if (n == 0)return modint(1); modint res = (a*a) ^ (n / 2); if (n % 2)res = res * a; return res; } ll inv(ll a, ll p) { return (a == 1 ? 1 : (1 - p * inv(p%a, a)) / a + p); } modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); } const int max_n = 1 << 20; modint fact[max_n], factinv[max_n]; void init_f() { fact[0] = modint(1); for (int i = 0; i < max_n - 1; i++) { fact[i + 1] = fact[i] * modint(i + 1); } factinv[max_n - 1] = modint(1) / fact[max_n - 1]; for (int i = max_n - 2; i >= 0; i--) { factinv[i] = factinv[i + 1] * modint(i + 1); } } modint comb(int a, int b) { if (a < 0 || b < 0 || a < b)return 0; return fact[a] * factinv[b] * factinv[a - b]; } struct edge { int to, cost; }; vector<edge> G[2000]; ll dist[3][2000]; void solve() { int n, m, p, q, t; cin >> n >> m >> p >> q >> t; p--; q--; rep(i, m) { int a, b, c; cin >> a >> b >> c; a--; b--; G[a].push_back({ b,c }); G[b].push_back({ a,c }); } vector<int> ids = { 0,p,q }; rep(i, 3) { int s = ids[i]; fill(dist[i], dist[i] + n, INF); priority_queue<LP, vector<LP>, greater<LP>> q; dist[i][s] = 0; q.push({ 0,s }); while (!q.empty()) { LP p = q.top(); q.pop(); int id = p.second; if (dist[i][id] < p.first)continue; for (edge e : G[id]) { ll nd = e.cost + p.first; if (nd < dist[i][e.to]) { dist[i][e.to] = nd; q.push({ nd,e.to }); } } } } if (dist[0][p] + dist[1][q] + dist[2][0] <= t) { cout << t << "\n"; return; } ll ans = -1; rep(i, n) { if (i == 0 || i == p || i == q)continue; ll sum = 2 * (dist[0][i] + max(dist[1][i], dist[2][i])); if (sum <= t) { ans = max(ans, t - 2 * max(dist[1][i], dist[2][i])); } sum = dist[0][i] + max(dist[1][i] + dist[1][0], dist[2][i] + dist[2][0]); if (sum <= t) { ans = max(ans, t - max(dist[1][i] + dist[1][0], dist[2][i] + dist[2][0])); } } cout << ans << "\n"; } signed main() { //ios::sync_with_stdio(false); //cin.tie(0); //cout << fixed << setprecision(10); //int t; cin >> t; rep(i, t) solve(); stop return 0; }