結果
| 問題 | No.2916 累進コスト最小化 |
| コンテスト | |
| ユーザー |
👑 |
| 提出日時 | 2024-05-26 10:59:52 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 75 ms / 3,500 ms |
| コード長 | 2,910 bytes |
| コンパイル時間 | 4,322 ms |
| コンパイル使用メモリ | 256,812 KB |
| 最終ジャッジ日時 | 2025-02-21 16:43:39 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 34 |
ソースコード
#include<bits/stdc++.h>
#include<atcoder/all>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
using namespace atcoder;
typedef long long ll;
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<vector<int>> vvi;
typedef vector<vector<long long>> vvl;
typedef long double ld;
typedef pair<int, int> P;
ostream& operator<<(ostream& os, const modint& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const static_modint<m>& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const dynamic_modint<m>& a) {os << a.val(); return os;}
template<typename T> istream& operator>>(istream& is, vector<T>& v){int n = v.size(); assert(n > 0); rep(i, n) is >> v[i]; return is;}
template<typename U, typename T> ostream& operator<<(ostream& os, const pair<U, T>& p){os << p.first << ' ' << p.second; return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : " "); return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<vector<T>>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : ""); return os;}
template<typename T> ostream& operator<<(ostream& os, const set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename T> ostream& operator<<(ostream& os, const unordered_set<T>& se){for(T x : se) os << x << " "; os << "\n"; return os;}
template<typename S, auto op, auto e> ostream& operator<<(ostream& os, const atcoder::segtree<S, op, e>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}
template<typename S, auto op, auto e, typename F, auto mapping, auto composition, auto id> ostream& operator<<(ostream& os, const atcoder::lazy_segtree<S, op, e, F, mapping, composition, id>& seg){int n = seg.max_right(0, [](S){return true;}); rep(i, n) os << seg.get(i) << (i == n - 1 ? "\n" : " "); return os;}
template<typename T> void chmin(T& a, T b){a = min(a, b);}
template<typename T> void chmax(T& a, T b){a = max(a, b);}
using P = pair<int, int>;
int main(){
int N, M, C;
cin >> N >> M >> C;
vector<vector<P>> G(N, vector<P>(N, {-1, -1}));
rep(_, M){
int u, v, r, w;
cin >> u >> v >> r >> w;
u--; v--;
G[u][v] = {r, w};
G[v][u] = {r, w};
}
int ans = -1;
vector<int> best(N, -1);
for(int c = 1; c <= C; c++){
queue<pair<int, int>> qu;
qu.emplace(0, c);
while(qu.size()){
auto [from, c_from] = qu.front(); qu.pop();
if(c_from <= best[from]) continue;
best[from] = c_from;
if(from == N - 1) ans = c_from;
for(int to = 0; to < N; to++){
auto [r, w] = G[from][to];
if(r == -1) continue;
int c_to = c_from - (c_from / r + w);
if(c_to < 0) continue;
if(c_to <= best[to]) continue;
qu.emplace(to, c_to);
}
}
cout << ans << "\n";
}
return 0;
}