Submission #874413

#	Time	Username	Problem	Language	Result	Execution time	Memory
874413		Darren0724	Treatment Project (JOI20_treatment)	C++17	0 / 100	3044 ms	7504 KiB

treatment

#include <bits/stdc++.h>
using namespace std;
#define LCBorz ios_base::sync_with_stdio(false);cin.tie(0);
#define int long long
#define all(x) x.begin(), x.end()
#define x first
#define y second
const int N=150005;
const int INF=1e18;
struct st{
    int t,l,r,c;
    bool operator<(st &o){
        return this->l<o.l;
    }
};
int32_t main() {
    int m,n;cin>>m>>n;
    vector<st> v(n);
    for(int i=0;i<n;i++){
        int a,b,c,d;cin>>a>>b>>c>>d;
        v[i]={a,b,c,d};
    }
    sort(all(v));
    vector<int> dp(n);
    for(int i=0;i<n;i++){
        auto [t,l,r,c]=v[i];
        int ans=(l==1?c:INF);
        for(int j=0;j<i;j++){
            auto [t1,l1,r1,c1]=v[j];
            if(abs(t-t1)<=r1-l+1){
                ans=min(ans,dp[j]+c);
            }
        }
        dp[i]=ans;
    }
    int ans=INF;
    for(int i=0;i<n;i++){
        if(v[i].r==m){
            ans=min(ans,dp[i]);
        }
    }
    cout<<(ans==INF?-1:ans)<<endl;

    return 0;
}

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