結果
問題 | No.614 壊れたキャンパス |
ユーザー | tancahn2380 |
提出日時 | 2019-07-15 08:26:38 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,464 bytes |
コンパイル時間 | 2,741 ms |
コンパイル使用メモリ | 225,764 KB |
実行使用メモリ | 93,440 KB |
最終ジャッジ日時 | 2024-11-26 02:08:58 |
合計ジャッジ時間 | 17,110 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 8 ms
20,864 KB |
testcase_01 | AC | 8 ms
20,992 KB |
testcase_02 | AC | 8 ms
20,864 KB |
testcase_03 | AC | 7 ms
20,992 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | AC | 7 ms
20,864 KB |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | AC | 1,062 ms
83,320 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | AC | 996 ms
84,736 KB |
testcase_16 | WA | - |
testcase_17 | AC | 639 ms
76,288 KB |
testcase_18 | WA | - |
testcase_19 | AC | 712 ms
79,424 KB |
ソースコード
# include "bits/stdc++.h" using namespace std; using LL = long long; using ULL = unsigned long long; const double PI = acos(-1); template<class T>constexpr T INF() { return ::std::numeric_limits<T>::max(); } template<class T>constexpr T HINF() { return INF<T>() / 2; } template <typename T_char>T_char TL(T_char cX) { return tolower(cX); }; template <typename T_char>T_char TU(T_char cX) { return toupper(cX); }; const int vy[] = { -1, -1, -1, 0, 1, 1, 1, 0 }, vx[] = { -1, 0, 1, 1, 1, 0, -1, -1 }; const int dx[4] = { 0,1,0,-1 }, dy[4] = { 1,0,-1,0 }; int popcnt(unsigned long long n) { int cnt = 0; for (int i = 0; i < 64; i++)if ((n >> i) & 1)cnt++; return cnt; } int d_sum(LL n) { int ret = 0; while (n > 0) { ret += n % 10; n /= 10; }return ret; } int d_cnt(LL n) { int ret = 0; while (n > 0) { ret++; n /= 10; }return ret; } LL gcd(LL a, LL b) { if (b == 0)return a; return gcd(b, a%b); }; LL lcm(LL a, LL b) { LL g = gcd(a, b); return a / g*b; }; # define ALL(qpqpq) (qpqpq).begin(),(qpqpq).end() # define UNIQUE(wpwpw) sort(ALL((wpwpw)));(wpwpw).erase(unique(ALL((wpwpw))),(wpwpw).end()) # define LOWER(epepe) transform(ALL((epepe)),(epepe).begin(),TL<char>) # define UPPER(rprpr) transform(ALL((rprpr)),(rprpr).begin(),TU<char>) # define FOR(i,tptpt,ypypy) for(LL i=(tptpt);i<(ypypy);i++) # define REP(i,upupu) FOR(i,0,upupu) # define INIT std::ios::sync_with_stdio(false);std::cin.tie(0) struct edge { LL to, cost; }; int start; LL d[404040]; //距離 vector<edge> vec[404040]; void dijkstra() { for (int i = 0; i < 404040; i++)d[i] = HINF<LL>(); priority_queue<pair<int, int>, std::vector<pair<int, int>>, std::greater<pair<int, int>>> pq; d[start] = 0; pq.push(make_pair(d[start], start));//cost,to while (!pq.empty()) { pair<int, int> p = pq.top(); pq.pop(); int i = p.second; if (d[i] < p.first)continue; for (int k = 0; k < (int)vec[i].size(); k++) { edge e = vec[i][k]; if (d[e.to] <= d[i] + e.cost)continue; d[e.to] = d[i] + e.cost; pq.push(make_pair(d[e.to], e.to)); } } } int n, m, k, s, t; int a[202020], b[202020], c[202020]; map<pair<int, int>, int> mp; vector<int> v[202020]; int main(){ cin >> n >> m >> k >> s >> t; s--, t--; int idx = 0; mp[make_pair(0, s)] = idx; v[0].emplace_back(s); idx++; mp[make_pair(n - 1, t)] = idx; v[n - 1].emplace_back(t); idx++; REP(i, m){ cin >> a[i] >> b[i] >> c[i]; a[i]--, b[i]--, c[i]--; v[a[i]].emplace_back(b[i]); v[a[i] + 1].emplace_back(c[i]); if(!mp[make_pair(a[i], b[i])])mp[make_pair(a[i], b[i])] = idx; idx++; if(!mp[make_pair(a[i] + 1, c[i])])mp[make_pair(a[i] + 1, c[i])] = idx; idx++; vec[mp[make_pair(a[i], b[i])]].emplace_back(edge{mp[make_pair(a[i] + 1, c[i])], 0}); vec[mp[make_pair(a[i] + 1, c[i])]].emplace_back(edge{mp[make_pair(a[i], b[i])], 0}); } REP(i, n){ sort(ALL(v[i])); UNIQUE(v[i]); REP(j, (int)v[i].size() - 1){ vec[mp[make_pair(i, v[i][j + 1])]].emplace_back(edge{mp[make_pair(i, v[i][j])], v[i][j + 1] - v[i][j]}); vec[mp[make_pair(i, v[i][j])]].emplace_back(edge{mp[make_pair(i, v[i][j + 1])], v[i][j + 1] - v[i][j]}); } } dijkstra(); if(d[mp[make_pair(n - 1, t)]] == HINF<LL>()){ cout << -1 << endl; }else{ cout << d[1] << endl; } }