Submission #1008511

#	Time	Username	Problem	Language	Result	Execution time	Memory
1008511		AdamGS	Treatment Project (JOI20_treatment)	C++17	0 / 100	26 ms	8528 KiB

treatment

#include<bits/stdc++.h>
using namespace std;
typedef long double ld;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const ll INF=1e18+7;
const int LIM=1e5+7;
pair<pair<ll,ll>,pair<ll,ll>>T[LIM];
ll odl[LIM], odw[LIM];
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n, m;
  cin >> n >> m;
  rep(i, m) {
    cin >> T[i].nd.st >> T[i].st.st >> T[i].st.nd >> T[i].nd.nd;
    odl[i]=INF;
    if(T[i].st.st==1) {
      odl[i]=min(odl[i], T[i].nd.nd);
    }
  }
  while(true) {
    pair<ll,ll>mi={INF, INF};
    rep(i, n) if(!odw[i]) mi=min(mi, {odl[i], i});
    if(mi.st==INF) break;
    ll o=mi.st, p=mi.nd;
    odw[p]=1;
    rep(i, m) {
      if(T[p].st.nd-T[i].st.st+1>=abs(T[p].nd.st-T[i].nd.st)) {
        odl[i]=min(odl[i], o+T[i].nd.nd);
      }
    }
  }
  ll ans=INF;
  rep(i, m) if(T[i].st.nd==n) ans=min(ans, odl[i]);
  if(ans==INF) ans=-1;
  cout << ans << '\n';
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 5
• Subtask 3: 0 / 30
• Subtask 4: 0 / 61