Submission #294771

#	Time	Username	Problem	Language	Result	Execution time	Memory
294771		infinite_iq	Pinball (JOI14_pinball)	C++14	0 / 100	1 ms	384 KiB

pinball

#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 100
#define mp make_pair
#define mid (l+r)/2
#define le node * 2 
#define ri node * 2 + 1 
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
//#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
#define all(x) x.begin(), x.end()
#define gc getchar_unlocked
typedef long long ll;
typedef short int si;
typedef double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
typedef pair<double,ll>pdi;
const ll inf=2e18;
const ll mod=1e9+7;
const ld Pi=acos(-1) ;
ll n , m ;
ll A [1009] , B [1009] , C [1009] , D [1009] ; 
ll Dp [1009][2] ;
int main () {
        cin >> n >> m ;
        for ( int i = 0 ; i < n ; i ++ ) {
                cin >> A [i] >> B [i] >> C [i] >> D [i] ;
        }
        set < pair < int , pi > > s ;
        for ( int i = 0 ; i < n ; i ++ ) {
                Dp [i][0] = ( A [i] == 1 ? D [i] : inf ) ;
                Dp [i][1] = ( B [i] == m ? D [i] : inf ) ;
                for ( auto u : s ) {
                        if ( A [i] <= u.fi && u.fi <= B [i] ) {
                                Dp [i][0] = min ( Dp [i][0] , u.se.fi + D [i] ) ;
                                Dp [i][1] = min ( Dp [i][1] , u.se.se + D [i] ) ;
                        }
                }
                s .ins ( { C [i] , { Dp [i][0] , Dp [i][1] } } ) ;
        }
        ll ans = inf ;
        for ( int i = 0 ; i < n ; i ++ ) {
                ans = min ( ans , Dp [i][0] + Dp [i][1] - D [i] ) ;
        }
        cout << ( ans >= inf ? -1 : ans ) << endl ;
}

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