結果
問題 | No.114 遠い未来 |
ユーザー | atetubou |
提出日時 | 2014-12-29 01:29:11 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 484 ms / 5,000 ms |
コード長 | 3,807 bytes |
コンパイル時間 | 1,868 ms |
コンパイル使用メモリ | 177,896 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-13 00:35:29 |
合計ジャッジ時間 | 5,219 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 | 15 ms
6,812 KB |
testcase_01 | AC | 342 ms
6,944 KB |
testcase_02 | AC | 122 ms
6,944 KB |
testcase_03 | AC | 20 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 3 ms
6,944 KB |
testcase_06 | AC | 208 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 5 ms
6,944 KB |
testcase_10 | AC | 81 ms
6,944 KB |
testcase_11 | AC | 230 ms
6,940 KB |
testcase_12 | AC | 311 ms
6,940 KB |
testcase_13 | AC | 484 ms
6,940 KB |
testcase_14 | AC | 145 ms
6,940 KB |
testcase_15 | AC | 250 ms
6,940 KB |
testcase_16 | AC | 93 ms
6,940 KB |
testcase_17 | AC | 57 ms
6,944 KB |
testcase_18 | AC | 70 ms
6,944 KB |
testcase_19 | AC | 36 ms
6,944 KB |
testcase_20 | AC | 12 ms
6,944 KB |
testcase_21 | AC | 4 ms
6,944 KB |
testcase_22 | AC | 5 ms
6,940 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,944 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 2 ms
6,940 KB |
testcase_27 | AC | 2 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> #include <iostream> #include <vector> #include <queue> #include <string> #include <cstring> #include <sstream> #include <set> #include <map> #include <algorithm> #include <cstdio> #include <cstdlib> #define rep(i,n) for(int i=0;i<(int)(n);++i) #define iter(a) __typeof(a.begin()) #define FOR(it,a) for(iter(a)it=a.begin();it!=a.end();++it) #define F first #define S second #define SZ(a) (int)((a).size()) #define sz(a) SZ(a) #define pb(a) push_back(a) #define mp(a,b) make_pair(a,b) #define ALL(a) (a).begin(),(a).end() using namespace std; typedef long long ll; typedef pair<int,int> PI; typedef unsigned long long ull; #define PR(...) do{cerr << "line : " << __LINE__ << endl; pr(#__VA_ARGS__, __VA_ARGS__);}while(0); template<class T> void pr(const string& name, T t){ cerr << name << ": " << t << endl; } template<typename T, typename ... Types> void pr(const string& names, T t, Types ... rest) { auto comma_pos = names.find(','); cerr << names.substr(0, comma_pos) << ": " << t << ", "; auto next_name_pos = names.find_first_not_of(" \t\n", comma_pos + 1); pr(string(names, next_name_pos), rest ...); } template<class T,class U> ostream& operator<< (ostream& o, const pair<T,U>& v){return o << "(" << v.F << ", " << v.S << ")";} template<class T> ostream& operator<< (ostream& o, const vector<T>& v){o << "{";rep(i,SZ(v)) o << (i?", ":"") << v[i];return o << "}";} const int dx[] = {0,1,0,-1}; const int dy[] = {-1,0,1,0}; #define endl '\n' const int MAX_N=40; int cost[MAX_N][MAX_N]; const int THRESHOLD=14; int dp[1<<THRESHOLD][MAX_N]; int un[MAX_N]; int find(int x){ if(x == un[x]) return x; return un[x] = find(un[x]); } void unit(int a,int b){ un[find(a)] = find(b); } bool db[100][100]; int main(int argc, char *argv[]) { int n,m,t; cin >> n >> m >> t; rep(i,n)rep(j,n) cost[i][j] = 1e9; vector<pair<int,PI > > ed; rep(i,m){ int a,b,c; cin >> a >> b >> c; --a,--b; ed.pb(mp(c,mp(a,b))); cost[b][a] = cost[a][b] = min(cost[a][b],c); } rep(i,n) cost[i][i] = 0; rep(k,n)rep(i,n)rep(j,n){ if(cost[i][j] >= cost[i][k] + cost[k][j] && i != k && k != j){ db[i][j] = 1; db[j][i] = 1; } cost[i][j] = min(cost[i][j], cost[i][k]+cost[k][j]); } vector<int> terminal(t); rep(i, t){ cin >> terminal[i]; --terminal[i]; } if(t>THRESHOLD){ sort(ALL(ed)); { vector<pair<int,PI> > ned; for(auto e : ed) if(!db[e.S.F][e.S.S]) ned.pb(e); ed = ned; } //PR(m,SZ(ed)); vector<int> nont; sort(ALL(terminal)); rep(i,n) if(!binary_search(ALL(terminal),i)) nont.pb(i); //cout << nont << endl; int ans = 1e9; rep(i,1<<(n-t)){ bool use[35] = {}; int comp = t-1; rep(j,n-t) comp += use[nont[j]] = (i>>j)&1; rep(j,t) use[terminal[j]] = true; rep(j,n) un[j] = j; int cc = 0; for(const auto& e : ed){ if(cc + e.F >= ans) break; if(!use[e.S.F] || !use[e.S.S]) continue; int a = find(e.S.F); int b = find(e.S.S); if(a != b){ un[a] = b; cc += e.F; --comp; if(cc >= ans || comp==0) break; } } if(cc >= ans || comp) continue; ans = cc; } cout << ans << endl; }else{ rep(S,1<<t)rep(i,n) dp[S][i] = 1e9; rep(i,t)rep(j,n) dp[1<<i][j] = cost[terminal[i]][j]; for(int S = 3; S < (1<<t); ++S){ if(!(S & (S-1))) continue; int sub = (S-1) & S; do{ rep(i,n) dp[S][i] = min(dp[S][i], dp[sub][i] + dp[sub^S][i]); sub = (sub-1) & S; }while(sub); rep(p,n)rep(q,n) dp[S][p] = min(dp[S][p], dp[S][q]+cost[q][p]); } cout << dp[(1<<t)-1][terminal[0]] << endl; } return 0; }