結果
問題 | No.2328 Build Walls |
ユーザー | umimel |
提出日時 | 2023-05-28 14:54:08 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 131 ms / 3,000 ms |
コード長 | 2,702 bytes |
コンパイル時間 | 1,660 ms |
コンパイル使用メモリ | 180,124 KB |
実行使用メモリ | 13,440 KB |
最終ジャッジ日時 | 2024-06-08 06:25:39 |
合計ジャッジ時間 | 4,481 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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 1 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 26 ms
8,576 KB |
testcase_14 | AC | 36 ms
5,888 KB |
testcase_15 | AC | 32 ms
6,016 KB |
testcase_16 | AC | 6 ms
5,376 KB |
testcase_17 | AC | 32 ms
6,656 KB |
testcase_18 | AC | 3 ms
5,376 KB |
testcase_19 | AC | 4 ms
5,376 KB |
testcase_20 | AC | 4 ms
5,376 KB |
testcase_21 | AC | 21 ms
8,064 KB |
testcase_22 | AC | 53 ms
7,168 KB |
testcase_23 | AC | 131 ms
13,312 KB |
testcase_24 | AC | 121 ms
13,440 KB |
testcase_25 | AC | 122 ms
13,312 KB |
testcase_26 | AC | 97 ms
13,440 KB |
testcase_27 | AC | 112 ms
13,440 KB |
testcase_28 | AC | 41 ms
13,312 KB |
testcase_29 | AC | 124 ms
13,312 KB |
testcase_30 | AC | 45 ms
13,312 KB |
testcase_31 | AC | 44 ms
13,312 KB |
testcase_32 | AC | 115 ms
13,312 KB |
testcase_33 | AC | 122 ms
13,312 KB |
testcase_34 | AC | 49 ms
13,312 KB |
testcase_35 | AC | 121 ms
13,312 KB |
testcase_36 | AC | 2 ms
5,376 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 mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count()); const ll MOD1000000007 = 1000000007; const ll MOD998244353 = 998244353; const ll MOD[3] = {999727999, 1070777777, 1000000007}; const ll LINF = 1LL << 60; const int IINF = 1 << 30 - 1; template<typename T> struct Edge{ int to; T w; Edge(int to_, T w_=1){ to = to_; w=w_; } }; template<typename T> using Tree = vector<vector<Edge<T>>>; template<typename T> using Graph = vector<vector<Edge<T>>>; /* 容量&重み付きエッジ for Dinic */ template<typename T> struct REdge{ int to; T cap; T cost; int rev; REdge(int to_, T cap_, T cost_=1){ to = to_; cap = cap_; cost = cost_; } REdge(int to_, T cap_, T cost_, int rev_){ to = to_; cap = cap_; cost = cost_; rev = rev_; } }; /* 残余グラフ for Dinic */ template<typename T> using RGraph = vector<vector<REdge<T>>>; int main(){ cin.tie(nullptr); ios::sync_with_stdio(false); ll h, w; cin >> h >> w; vector<vector<ll>> a(h, vector<ll>(w)); for(ll i=1; i<h-1; i++) for(ll j=0; j<w; j++) cin >> a[i][j]; ll di[8] = {-1, -1, -1, 0, 0, 1, 1, 1}; ll dj[8] = {-1, 0, 1, -1, 1, -1, 0, 1}; ll ans = LINF; vector<vector<ll>> cost(h, vector<ll>(w, LINF)); priority_queue<tuple<ll, ll, ll>, vector<tuple<ll, ll, ll>>, greater<tuple<ll, ll, ll>>> PQ; for(ll si=1; si<h-1; si++){ if(a[si][0]==-1) continue; //start地点 : (si, 0) cost[si][0] = a[si][0]; PQ.push({cost[si][0], si, 0}); } while(!PQ.empty()){ ll tmp_cost = get<0>(PQ.top()); ll now_i = get<1>(PQ.top()); ll now_j = get<2>(PQ.top()); PQ.pop(); if(cost[now_i][now_j] < tmp_cost) continue; rep(k, 8){ ll next_i = now_i + di[k]; ll next_j = now_j + dj[k]; if(next_i <= 0 || next_j < 0 || h-1<=next_i || w<=next_j) continue; if(a[next_i][next_j]==-1) continue; if(cost[now_i][now_j]+a[next_i][next_j]<cost[next_i][next_j]){ cost[next_i][next_j] = cost[now_i][now_j]+a[next_i][next_j]; PQ.push({cost[next_i][next_j], next_i, next_j}); } } } for(ll i=1; i<=h-1; i++) ans = min(ans, cost[i][w-1]); if(ans==LINF) cout << -1 << endl; else cout << ans << endl; }