Submission #286711

#	Time	Username	Problem	Language	Result	Execution time	Memory
286711		FEDIKUS	Pinball (JOI14_pinball)	C++17	11 / 100	681 ms	524288 KiB

pinball

#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define xx first
#define yy second
#define srt(a) sort(a.begin(),a.end());
#define srtg(a,ll) sort(a.begin(),a.end(),greater<ll>())
#define lb(a,x) lower_bound(a.begin(),a.end(),x)
#define up(a,x) upper_bound(a.begin(),a.end(),x)
#define fnd(a,x) find(a.begin(),a.end(),x)
#define vstart auto startt=chrono::system_clock::now()
#define vend auto endd=chrono::system_clock::now()
#define vvreme chrono::duration<double> vremee=endd-startt
#define ios ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

using namespace std;

typedef long long ll;
typedef pair<ll,ll> pii;
typedef pair<ll,ll> pll;
typedef string str;

pii matra[201][100001];
ll n,m;

ll uradi(ll a,ll mask){
    ll j=a;
    for(ll i=0;i<=m;i++){
        if(matra[i][j]==mp(-1LL,-1LL)) continue;
        if(((1<<matra[i][j].yy)&mask)>0){
            j=matra[i][j].xx;
        }
    }
    return j;
}

bool moze(ll mask){
    ll mini=1001;
    ll maxi=-1;
    for(ll i=1;i<=n;i++){
        ll sta=uradi(i,mask);
        mini=min(sta,mini);
        maxi=max(sta,maxi);
    }
    if(mini==maxi) return true;
    return false;
}

int main()
{
    ios;
    cin>>m>>n;
    vector<ll> niz(m);
    for(ll i=0;i<11;i++){
        for(ll j=0;j<1001;j++) matra[i][j]=mp(-1,-1);
    }
    for(ll i=0;i<m;i++){
        ll a,b,c,d;
        cin>>a>>b>>c>>d;
        for(ll k=a;k<=b;k++){
            matra[i+1][k]=mp(c,i);
        }
        niz[i]=d;
    }
    ll res=LLONG_MAX;
    for(ll mask=0;mask<(1<<m);mask++){
        ll tren=0;
        for(ll j=0;j<m;j++){
            if(((1<<j)&mask)>0) tren+=niz[j];
        }
        if(moze(mask)) res=min(res,tren);
    }
    if(res==LLONG_MAX) cout<<-1;
    else cout<<res;
    return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 18
• Subtask 3: 0 / 22
• Subtask 4: 0 / 49