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답안 #908951

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
908951 2024-01-17T03:18:28 Z vjudge1 Pinball (JOI14_pinball) C++17
100 / 100
 715 ms 94280 KB 
#include <bits/stdc++.h>
#define ll long long

using namespace std;

ll inf=1e18;

struct device{
    ll i, a, b, c, d;
    ll dp[2]={inf, inf};
    bool operator<(const device B)const{
        return b<B.b;
    }
};

struct segtree{
    segtree *left, *right;
    int l, r, mid;
    ll mn=inf;
    segtree(int x, int y){
        l=x;
        r=y;
        mid=(l+r)/2;
        if(l==r) return;
        left = new segtree(l,mid);
        right = new segtree(mid+1,r);
    }
    void update(int x, ll dp, bool force=false){
        if(x<l || r<x) return;
        if(x<=l && r<=x){
            mn=min(dp,mn);
            if(force) mn=dp;
            return;
        }
        left->update(x,dp,force);
        right->update(x,dp,force);
        mn=min(left->mn,right->mn);
    }
    ll query(int x, int y){
        if(y<l || r<x) return 1e18;
        if(x<=l && r<=y) return mn;
        return min(left->query(x,y),right->query(x,y));
    }
};

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, m;
    cin>>n>>m;
    vector<device> devs(n);
    ll ans=1e18;
    map<int, int> ccmp;
    set<int> nums;
    for(int i=0; i<n; i++){
        cin>>devs[i].a>>devs[i].b>>devs[i].c>>devs[i].d;
        devs[i].i=i;
        nums.insert(devs[i].a);
        nums.insert(devs[i].b);
        nums.insert(devs[i].c);
    }
    nums.insert(1);
    nums.insert(m);
    int x=0;
    for(auto e:nums) ccmp[e]=x++;
    segtree ST(0,x), ST2(0,x);
    ST.update(0,0);
    for(int i=0; i<n; i++){
        devs[i].a=ccmp[devs[i].a];
        devs[i].b=ccmp[devs[i].b];
        devs[i].c=ccmp[devs[i].c];
    }
    for(int i=0; i<n; i++){
        devs[i].dp[0]=ST.query(devs[i].a,devs[i].b)+devs[i].d;
        ST.update(devs[i].c,devs[i].dp[0]);
    }
    ST2.update(x-1,0);
    for(int i=0; i<n; i++){
        devs[i].dp[1]=ST2.query(devs[i].a,devs[i].b)+devs[i].d;
        ST2.update(devs[i].c,devs[i].dp[1]);
        ans=min(ans,devs[i].dp[1]+devs[i].dp[0]-devs[i].d);
        //cout<<devs[i].a<<" "<<devs[i].b<<" "<<devs[i].c<<" "<<devs[i].dp[0]<<" "<<devs[i].dp[1]<<endl;
    }
    if(ans==inf) cout<<-1<<endl;
    else cout<<ans<<endl;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 672 KB Output is correct
17 Correct 3 ms 860 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 3 ms 1116 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 1 ms 860 KB Output is correct
22 Correct 3 ms 1372 KB Output is correct
23 Correct 2 ms 1372 KB Output is correct
24 Correct 3 ms 1372 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 600 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 672 KB Output is correct
17 Correct 3 ms 860 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 3 ms 1116 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 1 ms 860 KB Output is correct
22 Correct 3 ms 1372 KB Output is correct
23 Correct 2 ms 1372 KB Output is correct
24 Correct 3 ms 1372 KB Output is correct
25 Correct 24 ms 5980 KB Output is correct
26 Correct 97 ms 18404 KB Output is correct
27 Correct 258 ms 35156 KB Output is correct
28 Correct 118 ms 10128 KB Output is correct
29 Correct 231 ms 31048 KB Output is correct
30 Correct 190 ms 14672 KB Output is correct
31 Correct 539 ms 57036 KB Output is correct
32 Correct 340 ms 43776 KB Output is correct
33 Correct 55 ms 18768 KB Output is correct
34 Correct 218 ms 47352 KB Output is correct
35 Correct 348 ms 93896 KB Output is correct
36 Correct 715 ms 94280 KB Output is correct
37 Correct 607 ms 94272 KB Output is correct
38 Correct 505 ms 94248 KB Output is correct