結果
問題 | No.2100 [Cherry Alpha C] Two-way Steps |
ユーザー | umimel |
提出日時 | 2022-10-14 22:26:22 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,653 bytes |
コンパイル時間 | 2,193 ms |
コンパイル使用メモリ | 187,868 KB |
実行使用メモリ | 35,968 KB |
最終ジャッジ日時 | 2024-06-26 15:46:59 |
合計ジャッジ時間 | 10,179 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 3 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 172 ms
25,088 KB |
testcase_05 | AC | 133 ms
18,944 KB |
testcase_06 | AC | 26 ms
8,192 KB |
testcase_07 | AC | 31 ms
9,472 KB |
testcase_08 | AC | 172 ms
32,896 KB |
testcase_09 | AC | 129 ms
15,616 KB |
testcase_10 | WA | - |
testcase_11 | AC | 122 ms
22,016 KB |
testcase_12 | AC | 89 ms
12,544 KB |
testcase_13 | AC | 103 ms
26,752 KB |
testcase_14 | WA | - |
testcase_15 | AC | 112 ms
25,344 KB |
testcase_16 | WA | - |
testcase_17 | AC | 76 ms
24,576 KB |
testcase_18 | AC | 109 ms
27,008 KB |
testcase_19 | AC | 198 ms
31,104 KB |
testcase_20 | AC | 41 ms
10,240 KB |
testcase_21 | AC | 88 ms
14,080 KB |
testcase_22 | WA | - |
testcase_23 | AC | 152 ms
27,904 KB |
testcase_24 | AC | 217 ms
35,968 KB |
testcase_25 | AC | 218 ms
35,840 KB |
testcase_26 | AC | 218 ms
35,840 KB |
testcase_27 | AC | 216 ms
35,968 KB |
testcase_28 | AC | 220 ms
35,840 KB |
testcase_29 | AC | 218 ms
35,968 KB |
testcase_30 | AC | 222 ms
35,840 KB |
testcase_31 | AC | 219 ms
35,840 KB |
testcase_32 | AC | 220 ms
35,840 KB |
testcase_33 | AC | 216 ms
35,840 KB |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | AC | 139 ms
34,432 KB |
testcase_45 | AC | 138 ms
34,304 KB |
testcase_46 | AC | 136 ms
34,432 KB |
testcase_47 | AC | 135 ms
34,432 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using pll = pair<ll, ll>; #define drep(i, cc, n) for (ll i = (cc); i <= (n); ++i) #define rep(i, n) drep(i, 0, n - 1) #define all(a) (a).begin(), (a).end() #define pb push_back #define fi first #define se second const ll MOD = 1000000007; const ll MOD2 = 998244353; const ll INF = 1LL << 60; const ll MAX_N = 2e5; int main(){ ll n, m; cin >> n >> m; vector<ll> h(n); rep(i, n) cin >> h[i]; vector<vector<ll>> G(n); rep(i, m){ ll u, v; cin >> u >> v; u--; v--; G[u].pb(v); G[v].pb(u); } // cherry vector<vector<ll>> cost1(n, vector<ll>(2, -INF)); vector<vector<bool>> check1(n, vector<bool>(2, false)); cost1[0][0] = 0; priority_queue<tuple<ll, ll, ll>> PQ1; PQ1.push({0, 0, 0}); while(!PQ1.empty()){ ll u = get<1>(PQ1.top()); ll isUp = get<2>(PQ1.top()); PQ1.pop(); if(check1[u][isUp]) continue; check1[u][isUp] = true; for(ll v : G[u]){ if(v < u) continue; if(isUp == 0){ if(h[u] < h[v]){ if(cost1[v][1] < cost1[u][0]+(h[v]-h[u])){ cost1[v][1] = cost1[u][0]+(h[v]-h[u]); PQ1.push({cost1[v][1], v, 1}); } }else{ if(cost1[v][0] < cost1[u][0]){ cost1[v][0] = cost1[u][0]; PQ1.push({cost1[v][0], v, 0}); } } }else{ if(h[u] < h[v]){ if(cost1[v][1] < cost1[u][1]+(h[v]-h[u])){ } }else{ if(cost1[v][0] < cost1[u][1]){ cost1[v][0] = cost1[u][1]; PQ1.push({cost1[v][0], v, 0}); } } } } } // zerukoba vector<vector<ll>> cost2(n, vector<ll>(2, -INF)); vector<vector<bool>> check2(n, vector<bool>(2, false)); cost2[n-1][0] = 0; priority_queue<tuple<ll, ll, ll>> PQ2; PQ2.push({0, n-1, 0}); while(!PQ2.empty()){ ll u = get<1>(PQ2.top()); ll isUp = get<2>(PQ2.top()); PQ2.pop(); if(check2[u][isUp]) continue; check2[u][isUp] = true; for(ll v : G[u]){ if(u < v) continue; if(isUp == 0){ if(h[u] < h[v]){ if(cost2[v][1] < cost2[u][0]+(h[v]-h[u])){ cost2[v][1] = cost2[u][0]+(h[v]-h[u]); PQ2.push({cost2[v][1], v, 1}); } }else{ if(cost2[v][0] < cost2[u][0]){ cost2[v][0] = cost2[u][0]; PQ2.push({cost2[v][0], v, 0}); } } }else{ if(h[u] < h[v]){ if(cost2[v][1] < cost2[u][1]+(h[v]-h[u])){ } }else{ if(cost2[v][0] < cost2[u][1]){ cost2[v][0] = cost2[u][1]; PQ2.push({cost2[v][0], v, 0}); } } } } } ll che=-INF, zer=-INF; che = max(cost1[n-1][0], cost1[n-1][1]); zer = max(cost2[0][0], cost2[0][1]); if(che == -INF){ cout << -1 << endl; }else{ cout << che << endl; } if(zer == -INF){ cout << -1 << endl; }else{ cout << zer << endl; } }