結果

問題 No.2569 はじめてのおつかいHard
ユーザー karinohitokarinohito
提出日時 2024-04-15 17:48:57
言語 C++17(gcc12)
(gcc 12.3.0 + boost 1.87.0)
結果
AC  
実行時間 334 ms / 2,000 ms
コード長 4,316 bytes
コンパイル時間 4,159 ms
コンパイル使用メモリ 277,564 KB
実行使用メモリ 27,480 KB
最終ジャッジ日時 2024-10-05 19:12:46
合計ジャッジ時間 7,777 ms
ジャッジサーバーID
(参考情報)
judge3 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 10
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
#include<atcoder/all>
using namespace atcoder;
using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvll = vector<vll>;
using vvvll = vector<vvll>;
using vvvvll = vector<vvvll>;
using vvvvvll = vector<vvvvll>;
using vb = vector<bool>;
using vvb = vector<vb>;
using vvvb = vector<vvb>;
using vvvvb = vector<vvvb>;
using vvvvvb = vector<vvvvb>;
using vd = vector<double>;
using vvd = vector<vd>;
using vvvd = vector<vvd>;
using vvvvd = vector<vvvd>;
using vvvvvd = vector<vvvvd>;
#define all(A) A.begin(),A.end()
#define rep(i, n) for (ll i = 0; i < (ll) (n); i++)
#define rep2(i, s,t) for (ll i = s; i < (ll) (t); i++)
template<class T>
bool chmax(T& p, T q, bool C = 1) {
if (C == 0 && p == q) {
return 1;
}
if (p < q) {
p = q;
return 1;
}
else {
return 0;
}
}
template<class T>
bool chmin(T& p, T q, bool C = 1) {
if (C == 0 && p == q) {
return 1;
}
if (p > q) {
p = q;
return 1;
}
else {
return 0;
}
}
ll modPow(long long a, long long n, long long p) {
if (n == 0) return 1; // 0
if (n == 1) return a % p;
if (n % 2 == 1) return (a * modPow(a, n - 1, p)) % p;
long long t = modPow(a, n / 2, p);
return (t * t) % p;
}
ll gcd(ll(a), ll(b)) {
if (a == 0)return b;
if (b == 0)return a;
ll c = a;
while (a % b != 0) {
c = a % b;
a = b;
b = c;
}
return b;
}
ll sqrtz(ll N) {
ll L = 0;
ll R = sqrt(N) + 10000;
while (abs(R - L) > 1) {
ll mid = (R + L) / 2;
if (mid * mid <= N)L = mid;
else R = mid;
}
return L;
}
using mint = modint998244353;
using vm = vector<mint>;
using vvm = vector<vm>;
using vvvm = vector<vvm>;
vector<mint> fact, factinv, inv, factK;
ll mod = 998244353;
void prenCkModp(ll n) {
//factK.resize(4*n+5);
fact.resize(n + 5);
factinv.resize(n + 5);
inv.resize(n + 5);
fact[0] = fact[1] = 1;
factinv[0] = factinv[1] = 1;
inv[1] = 1;
for (ll i = 2; i < n + 5; i++) {
fact[i] = (fact[i - 1] * i);
inv[i] = (mod - ((inv[mod % i] * (mod / i))));
factinv[i] = (factinv[i - 1] * inv[i]);
}
//factK[0]=1;
//for(ll i=1;i<4*n+5;i++){
// factK[i]=factK[i-1]*mint(K-i+1);
// //K*(K-1)*...*(K-i+1);
//}
}
mint nCk(ll n, ll k) {
if (n < k || k < 0) return 0;
return (fact[n] * ((factinv[k] * factinv[n - k])));
}
//mint nCkK(ll n,ll k){
// if(K<n||K-n<k)return 0;
// mint res=factK[n+k];
// res*=factK[n].inv();
// res*=factinv[k];
// return res;
//}
bool DEB = 1;
int main() {
cin.tie(nullptr);
ios::sync_with_stdio(false);
ll N,M;
cin>>N>>M;
vector<vector<pair<ll,ll>>> G(N),IG(N);
rep(i,M){
ll U,V,T;
cin>>U>>V>>T;
U--;V--;
G[U].push_back({V,T});
IG[V].push_back({U,T});
}
vvll D(2,vll(N,1e18)),ID(2,vll(N,1e18));
priority_queue<pair<ll,ll>,vector<pair<ll,ll>>,greater<pair<ll,ll>>> Q;
rep(k,2){
vb seen(N,0);
ll r=N-1;
if(k==0){
r=N-2;
}
D[k][r]=0;
ID[k][r]=0;
Q.push({0,r});
while(!Q.empty()){
ll c=Q.top().first;
ll p=Q.top().second;
Q.pop();
if(seen[p])continue;
for(auto vw:G[p]){
ll v=vw.first;
ll w=vw.second;
if(seen[v])continue;
ll nc=w+c;
if(chmin(D[k][v],nc)){
Q.push({nc,v});
}
}
}
Q.push({0,r});
seen.assign(N,0);
while(!Q.empty()){
ll c=Q.top().first;
ll p=Q.top().second;
Q.pop();
if(seen[p])continue;
for(auto vw:IG[p]){
ll v=vw.first;
ll w=vw.second;
if(seen[v])continue;
ll nc=w+c;
if(chmin(ID[k][v],nc)){
Q.push({nc,v});
}
}
}
}
rep(k,N-2){
ll an=ID[0][k]+D[0][N-1]+D[1][k];
ll bn=ID[1][k]+D[1][N-2]+D[0][k];
chmin(an,bn);
cout<<(an<1e17?an:-1)<<endl;
}
}
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