oj.uz

답안 #896622

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
896622 2024-01-01T18:29:39 Z Aiperiii Pinball (JOI14_pinball) C++14
100 / 100
 575 ms 44804 KB 
#include <bits/stdc++.h>
#define int long long
#define all(x) x.begin(),x.end()
#define ff first
#define ss second
#define pb push_back
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using namespace std;
const int N=7500000;
int l[N],r[N];
void build(int v,int tl,int tr){
    if(tl==tr){
        l[v]=1e16;
        r[v]=1e16;
    }
    else{
        int tm=(tl+tr)/2;
        build(v*2,tl,tm);
        build(v*2+1,tm+1,tr);
        l[v]=min(l[v*2],l[v*2+1]);
        r[v]=min(r[v*2],r[v*2+1]);
    }
}
int get_min_l(int v,int tl,int tr,int L,int R){
    if(tr<L or R<tl)return 1e18;
    if(L<=tl && tr<=R)return l[v];
    int tm=(tl+tr)/2;
    return min(get_min_l(v*2,tl,tm,L,R), get_min_l(v*2+1,tm+1,tr,L,R));
}
int get_min_r(int v,int tl,int tr,int L,int R){
    if(tr<L or R<tl)return 1e18;
    if(L<=tl && tr<=R)return r[v];
    int tm=(tl+tr)/2;
    return min(get_min_r(v*2,tl,tm,L,R), get_min_r(v*2+1,tm+1,tr,L,R));
}
void update_l(int v,int tl,int tr,int pos,int val){
    if(tl==tr)l[v]=min(val,l[v]);
    else{
        int tm=(tl+tr)/2;
        if(pos<=tm)update_l(v*2,tl,tm,pos,val);
        else update_l(v*2+1,tm+1,tr,pos,val);
        l[v]=min(l[v*2],l[v*2+1]);
    }
}
void update_r(int v,int tl,int tr,int pos,int val){
    if(tl==tr)r[v]=min(val,r[v]);
    else{
        int tm=(tl+tr)/2;
        if(pos<=tm)update_r(v*2,tl,tm,pos,val);
        else update_r(v*2+1,tm+1,tr,pos,val);
        r[v]=min(r[v*2],r[v*2+1]);
    }
}
signed main(){
    ios_base::sync_with_stdio();
    cin.tie(0);
    int m,T;
    cin>>m>>T;
    vector <int> a(m),b(m),c(m),d(m);
    set <int> st;
    vector <int> uni;
    uni.pb(1);uni.pb(T);
    for(int i=0;i<m;i++){
        cin>>a[i]>>b[i]>>c[i]>>d[i];
        uni.pb(a[i]);
        uni.pb(b[i]);
        uni.pb(c[i]);
    }
    int cnt=1;
    sort(all(uni));
    map <int,int> val_ind;
    val_ind[1]=cnt;
    for(int i=1;i<uni.size();i++){
        if(uni[i]!=uni[i-1]){
            cnt++;
            val_ind[uni[i]]=cnt;
        }
    }
    
    int n=cnt;
    build(1,1,n);
    
    int ans=1e16;
    for(int i=0;i<m;i++){
        int res=0;
        if(a[i]==1){
            res+=d[i];
            update_l(1,1,n,val_ind[c[i]],d[i]);
        }
        else{
            int x=get_min_l(1,1,n,val_ind[a[i]],val_ind[b[i]]);
            res+=x;res+=d[i];
            update_l(1,1,n,val_ind[c[i]],x+d[i]);
        }
        if(b[i]==T){
            res+=d[i];
            update_r(1,1,n,val_ind[c[i]],d[i]);
        }
        else{
            int x=get_min_r(1,1,n,val_ind[a[i]],val_ind[b[i]]);
            res+=x;res+=d[i];
            update_r(1,1,n,val_ind[c[i]],x+d[i]);
        }
        ans=min(ans,res-d[i]);
    }
    if(ans==1e16)ans=-1;
    cout<<ans<<"\n";
}

Compilation message

pinball.cpp: In function 'int main()':
pinball.cpp:74:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for(int i=1;i<uni.size();i++){
      |                 ~^~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 3 ms 2652 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 3 ms 2652 KB Output is correct
20 Correct 3 ms 2396 KB Output is correct
21 Correct 1 ms 2652 KB Output is correct
22 Correct 3 ms 2652 KB Output is correct
23 Correct 3 ms 2652 KB Output is correct
24 Correct 3 ms 2652 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 3 ms 2652 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 3 ms 2652 KB Output is correct
20 Correct 3 ms 2396 KB Output is correct
21 Correct 1 ms 2652 KB Output is correct
22 Correct 3 ms 2652 KB Output is correct
23 Correct 3 ms 2652 KB Output is correct
24 Correct 3 ms 2652 KB Output is correct
25 Correct 26 ms 6100 KB Output is correct
26 Correct 80 ms 11472 KB Output is correct
27 Correct 243 ms 16952 KB Output is correct
28 Correct 201 ms 8896 KB Output is correct
29 Correct 163 ms 15072 KB Output is correct
30 Correct 273 ms 11380 KB Output is correct
31 Correct 376 ms 27832 KB Output is correct
32 Correct 362 ms 20668 KB Output is correct
33 Correct 51 ms 11420 KB Output is correct
34 Correct 203 ms 22980 KB Output is correct
35 Correct 309 ms 43828 KB Output is correct
36 Correct 575 ms 43196 KB Output is correct
37 Correct 467 ms 44216 KB Output is correct
38 Correct 428 ms 44804 KB Output is correct