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답안 #887153

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
887153 2023-12-13T22:25:12 Z maxFedorchuk Pinball (JOI14_pinball) C++14
100 / 100
 489 ms 46164 KB 
#include<bits/stdc++.h>
using namespace std;

const long long MX=3e5+10;
const long long INF=1e18;

long long mas[2][4*MX];

void build(long long v,long long tl,long long tr)
{
    mas[0][v]=INF;
    mas[1][v]=INF;

    if(tl==tr)
    {
        return;
    }

    long long mid=(tl+tr)/2;

    build(v*2,tl,mid);
    build(v*2+1,mid+1,tr);

    return;
}

long long get_mn(long long in,long long v,long long tl,long long tr,long long l,long long r)
{
    if(l<=tl && tr<=r)
    {
        return mas[in][v];
    }

    if(tr<l || r<tl)
    {
        return INF;
    }

    long long mid=(tl+tr)/2;
    return min(get_mn(in,v*2,tl,mid,l,r),get_mn(in,v*2+1,mid+1,tr,l,r));
}

void upd(long long in,long long v,long long tl,long long tr,long long pos,long long zn)
{
    if(tl==tr)
    {
        mas[in][v]=min(mas[in][v],zn);
        return;
    }

    long long mid=(tl+tr)/2;

    if(pos<=mid)
    {
        upd(in,v*2,tl,mid,pos,zn);
    }
    else
    {
        upd(in,v*2+1,mid+1,tr,pos,zn);
    }

    mas[in][v]=min(mas[in][v*2],mas[in][v*2+1]);

    return;
}

long long m,n;

pair < pair < long long , long long > , pair < long long , long long > > zap[MX];

int main()
{
    cin.tie(0);
    ios_base::sync_with_stdio(0);

    map < long long , long long > mp;

    cin>>m>>n;

    for(long long i=1;i<=m;i++)
    {
        cin>>zap[i].first.first>>zap[i].first.second>>zap[i].second.first>>zap[i].second.second;

        mp[zap[i].first.first]=1;
        mp[zap[i].first.second]=1;
        mp[zap[i].second.first]=1;
    }
    mp[1]=1;
    mp[n]=1;

    long long uk=0;
    for(auto & u:mp)
    {
        uk++;
        u.second=uk;
    }
    n=uk;

    build(1,1,n);
    upd(0,1,1,n,1,0);
    upd(1,1,1,n,n,0);

    long long res=INF;
    for(long long i=1;i<=m;i++)
    {
        zap[i].first.first=mp[zap[i].first.first];
        zap[i].first.second=mp[zap[i].first.second];
        zap[i].second.first=mp[zap[i].second.first];

        res=min(res,get_mn(0,1,1,n,zap[i].first.first,zap[i].first.second)+get_mn(1,1,1,n,zap[i].first.first,zap[i].first.second)+zap[i].second.second);

        upd(0,1,1,n,zap[i].second.first,get_mn(0,1,1,n,zap[i].first.first,zap[i].first.second)+zap[i].second.second);
        upd(1,1,1,n,zap[i].second.first,get_mn(1,1,1,n,zap[i].first.first,zap[i].first.second)+zap[i].second.second);
    }

    if(res==INF)
    {
        res=-1;
    }

    cout<<res<<"\n";
    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4600 KB Output is correct
17 Correct 3 ms 4700 KB Output is correct
18 Correct 2 ms 4440 KB Output is correct
19 Correct 2 ms 4700 KB Output is correct
20 Correct 2 ms 4700 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 2 ms 4700 KB Output is correct
23 Correct 2 ms 4700 KB Output is correct
24 Correct 2 ms 4704 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4696 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4600 KB Output is correct
17 Correct 3 ms 4700 KB Output is correct
18 Correct 2 ms 4440 KB Output is correct
19 Correct 2 ms 4700 KB Output is correct
20 Correct 2 ms 4700 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 2 ms 4700 KB Output is correct
23 Correct 2 ms 4700 KB Output is correct
24 Correct 2 ms 4704 KB Output is correct
25 Correct 23 ms 8028 KB Output is correct
26 Correct 65 ms 11148 KB Output is correct
27 Correct 208 ms 19884 KB Output is correct
28 Correct 129 ms 12624 KB Output is correct
29 Correct 136 ms 18284 KB Output is correct
30 Correct 200 ms 13832 KB Output is correct
31 Correct 383 ms 31320 KB Output is correct
32 Correct 299 ms 24404 KB Output is correct
33 Correct 36 ms 11100 KB Output is correct
34 Correct 152 ms 26192 KB Output is correct
35 Correct 206 ms 46164 KB Output is correct
36 Correct 489 ms 45976 KB Output is correct
37 Correct 374 ms 46164 KB Output is correct
38 Correct 357 ms 45828 KB Output is correct