Submission #1205305

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205305		mychecksedad	Treatment Project (JOI20_treatment)	C++20	0 / 100	3094 ms	4224 KiB

treatment

/* Author : Mychecksdead  */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
#define ff first
#define ss second
#define pii pair<int,int>
#define vi vector<int>
const int N = 1e6+100, M = 1e5+10, K = 52, MX = 30;
const ll INF = 1e18;

int n, m;
array<ll, 4> a[N];
ll dp[N];
void solve(){
  cin >> n >> m;
  for(int i = 1; i <= m; ++i){
    cin >> a[i][2] >> a[i][0] >> a[i][1] >> a[i][3];
  }
  sort(a+1, a+1+m);
  ll ans = INF;

  for(int i = 1; i <= m; ++i){
    if(a[i][0] == 1){
      dp[i] = a[i][3];
    }else{
      dp[i] = INF;
      for(int j = 1; j < i; ++j){
        if(a[j][1] >= a[i][0] - 1){
          ll t1 = a[j][2];
          ll t2 = a[i][2];
          if(abs(t1-t2) <= a[j][1] - a[i][0] + 1){
            dp[i] = min(dp[i], dp[j] + a[i][3]);
          }
        }
      }
      if(a[i][1] == n){
        ans = min(ans, dp[i]);
      }
    }
    // cerr << a[i][0] << ' ' << a[i][1] << ' ';
    // cerr << i << ' ' << dp[i] << '\n';
  }

  if(ans==INF){
    cout << -1;
  }else{
    cout<< ans;
  }
}


int main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tt = 1, aa;
  // freopen("in.txt", "r", stdin);
  // freopen("out.txt", "w", stdout);
  while(tt--){
    solve();
    en;
  }
  cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
  return 0;
} 

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