oj.uz

답안 #897710

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
897710 2024-01-03T15:27:55 Z Aiperiii Pinball (JOI14_pinball) C++14
100 / 100
 373 ms 42280 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
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));
    unordered_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:72:18: 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]
   72 |     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 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 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 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 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 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2392 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 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 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 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2392 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 2396 KB Output is correct
17 Correct 3 ms 2652 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 4 ms 2764 KB Output is correct
20 Correct 4 ms 2652 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 2648 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 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 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 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2392 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 2396 KB Output is correct
17 Correct 3 ms 2652 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 4 ms 2764 KB Output is correct
20 Correct 4 ms 2652 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 2648 KB Output is correct
24 Correct 3 ms 2652 KB Output is correct
25 Correct 21 ms 6104 KB Output is correct
26 Correct 60 ms 11216 KB Output is correct
27 Correct 189 ms 17856 KB Output is correct
28 Correct 171 ms 13428 KB Output is correct
29 Correct 124 ms 16120 KB Output is correct
30 Correct 214 ms 14808 KB Output is correct
31 Correct 293 ms 27888 KB Output is correct
32 Correct 251 ms 22072 KB Output is correct
33 Correct 40 ms 10880 KB Output is correct
34 Correct 135 ms 21444 KB Output is correct
35 Correct 256 ms 41148 KB Output is correct
36 Correct 373 ms 41084 KB Output is correct
37 Correct 310 ms 40888 KB Output is correct
38 Correct 352 ms 42280 KB Output is correct