結果
問題 | No.468 役に立つ競技プログラミング実践編 |
ユーザー | 小指が強い人 |
提出日時 | 2016-12-19 01:33:41 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 414 ms / 2,000 ms |
コード長 | 3,643 bytes |
コンパイル時間 | 2,492 ms |
コンパイル使用メモリ | 185,068 KB |
実行使用メモリ | 28,796 KB |
最終ジャッジ日時 | 2024-05-08 06:52:06 |
合計ジャッジ時間 | 8,280 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 3 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 3 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 5 ms
5,376 KB |
testcase_15 | AC | 5 ms
5,376 KB |
testcase_16 | AC | 5 ms
5,376 KB |
testcase_17 | AC | 5 ms
5,376 KB |
testcase_18 | AC | 5 ms
5,376 KB |
testcase_19 | AC | 5 ms
5,376 KB |
testcase_20 | AC | 6 ms
5,376 KB |
testcase_21 | AC | 5 ms
5,376 KB |
testcase_22 | AC | 5 ms
5,376 KB |
testcase_23 | AC | 5 ms
5,376 KB |
testcase_24 | AC | 411 ms
28,612 KB |
testcase_25 | AC | 414 ms
28,672 KB |
testcase_26 | AC | 413 ms
28,796 KB |
testcase_27 | AC | 408 ms
28,752 KB |
testcase_28 | AC | 410 ms
28,708 KB |
testcase_29 | AC | 408 ms
28,672 KB |
testcase_30 | AC | 410 ms
28,624 KB |
testcase_31 | AC | 407 ms
28,664 KB |
testcase_32 | AC | 412 ms
28,672 KB |
testcase_33 | AC | 411 ms
28,592 KB |
testcase_34 | AC | 138 ms
27,472 KB |
testcase_35 | AC | 3 ms
5,376 KB |
testcase_36 | AC | 2 ms
5,376 KB |
ソースコード
#include "bits/stdc++.h" using namespace std; typedef long long ll; typedef unsigned long long ull; typedef vector<int> veci; typedef vector<ll> vecll; typedef vector<string> vecs; template<class T,class U> using Hash=unordered_map<T,U>; #define REP(i, a, n) for(ll i = a; i < (ll)(n); i++) #define RREP(i, a, n) for(ll i = n-1; i >= (ll)(a); i--) #define rep(i, n) REP(i, 0, n) #define rrep(i, n) RREP(i, 0, n) #define MD 1000000007 #define _SPLIT " " template<class T> T read(){T a;cin >> a;return a;} template<class T> void read(T& a){cin >> a;} template<class T,class ...Args> void read(T& a, Args&... args){cin >> a; read(args...);} template<class T> void rarr(T a, int n){for(int i = 0; i < n; i++) {cin >> a[i];}} template<class T> void write(T a){cout << setprecision(24) << a << endl;} template<class T,class ...Args> void write(T a, Args... args){cout << setprecision(24) << a << _SPLIT; write(args...);} template<class T> void warr(vector<T> a, const char* c = " "){cout << a[0];for(int i = 1; i < (int)a.size(); i++)cout << c << a[i];cout << endl;;} template<class T> void warr(T a, int n, const char* c = " "){cout << a[0];for(int i = 1; i < n; i++)cout << c << a[i];cout << endl;} template<class T> void warr(T begin, T end, const char* c = " "){cout << *begin;for(auto i = begin+1; i != end; i++)cout << c << *i;cout << endl;} void split(string s, string delim, veci& result){result.clear();string::size_type pos = 0;while(pos != string::npos){string::size_type p = s.find(delim, pos);if(p == string::npos){result.push_back(atoi(s.substr(pos).data()));break;}else {result.push_back(atoi(s.substr(pos, p - pos).data()));}pos = p + delim.size();}} void split(string s, string delim, vecs& result){result.clear();string::size_type pos = 0;while(pos != string::npos){string::size_type p = s.find(delim, pos);if(p == string::npos){result.push_back(s.substr(pos));break;}else {result.push_back(s.substr(pos, p - pos));}pos = p + delim.size();}} ll gcd(ll a, ll b){while(true){ll k = a % b;if(k == 0)return b;a = b;b = k;}} ll comb(ll n, ll m){ll p=1;m=min(m,n-m);for(ll i=1;i<=m;i++){p*=n-i+1;p/=i;}return p;} struct Edge { vector<int> from; vector<int> to; vector<int> cost; vector<int> from_cost; int reach_num=0; int rv_reach_num=0; int connect_num=0; int rv_connect_num=0; int min_time=0; int max_time=1e9; }; int main(void) { int n,m; read(n,m); vector<Edge> e(n); rep(i,m){ int a,b,c; read(a,b,c); e[a].to.push_back(b); e[a].cost.push_back(c); e[a].rv_connect_num++; e[b].from.push_back(a); e[b].from_cost.push_back(c); e[b].connect_num++; } queue<Edge> q; q.push(e[0]); while(!q.empty()){ Edge& et=q.front(); rep(i,et.to.size()){ int to=et.to[i]; e[to].reach_num++; e[to].min_time=max(e[to].min_time,et.min_time+et.cost[i]); if(e[to].reach_num<e[to].connect_num)continue; q.push(e[to]); } q.pop(); } e[n-1].max_time=e[n-1].min_time; q.push(e[n-1]); int res2=0; while(!q.empty()){ Edge& et=q.front(); rep(i,et.from.size()){ int from=et.from[i]; e[from].rv_reach_num++; e[from].max_time=min(e[from].max_time,et.max_time-et.from_cost[i]); if(e[from].rv_reach_num<e[from].rv_connect_num)continue; q.push(e[from]); if(e[from].min_time<e[from].max_time)res2++; } q.pop(); } int res1=e[n-1].min_time; write(res1,to_string(res2)+"/"+to_string(n)); return 0; }