oj.uz

답안 #906722

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
906722 2024-01-14T20:53:44 Z alexander707070 푸드 코트 (JOI21_foodcourt) C++14
24 / 100
 558 ms 76836 KB 
#include<bits/stdc++.h>
#define MAXN 500007
using namespace std;
 
struct event{
    int c;
    long long k;
    int type;
};

struct qr{
    int kth,id;
};
 
const long long inf=1e17;
 
int n,m,q,type,l,r,ans[MAXN];
long long s,t,total;
 
long long sz[4*MAXN];
pair<long long,long long> lazy[4*MAXN];
int c[MAXN];

vector<qr> ask[MAXN];
vector<event> queries[MAXN];

pair<long long,long long> merge_lazy(pair<long long,long long> a,pair<long long,long long> b){
    long long c = min(a.second, b.first);
    a.second -= c;
    b.first -= c;
    a.first += b.first;
    a.second += b.second;

    return a;
}

void psh(int v){

    sz[2*v]-=lazy[v].first;
    sz[2*v]=max(0LL,sz[2*v]);
    sz[2*v]+=lazy[v].second;

    sz[2*v+1]-=lazy[v].first;
    sz[2*v+1]=max(0LL,sz[2*v+1]);
    sz[2*v+1]+=lazy[v].second;

    lazy[2*v]=merge_lazy(lazy[2*v],lazy[v]);
    lazy[2*v+1]=merge_lazy(lazy[2*v+1],lazy[v]);

    lazy[v]={0,0};
}
 
void add(int v,int l,int r,int ll,int rr,long long val){
    if(ll>rr)return;
    psh(v);
 
    if(l==ll and r==rr){
 
        if(val<0){
            sz[v]=max(0LL,sz[v]+val);
            lazy[v].first+=-val;
        }else{
            sz[v]+=val;
            lazy[v].second+=val;
        }

     }else{
        int tt=(l+r)/2;
        add(2*v,l,tt,ll,min(tt,rr),val);
        add(2*v+1,tt+1,r,max(tt+1,ll),rr,val);
 
        sz[v]=min(sz[2*v],sz[2*v+1]);
    }
}
 
long long getsz(int v,int l,int r,int pos){
    if(l==r)return sz[v];
 
    psh(v);
    int tt=(l+r)/2;
 
    if(pos<=tt)return getsz(2*v,l,tt,pos);
    else return getsz(2*v+1,tt+1,r,pos);
}

long long tree[4*MAXN],lz[4*MAXN];

void psh2(int v,long long l,long long r){
    long long tt=(l+r)/2;

    tree[2*v]+=(tt-l+1)*lz[v];
    tree[2*v+1]+=(r-(tt+1)+1)*lz[v];

    lz[2*v]+=lz[v];
    lz[2*v+1]+=lz[v];

    lz[v]=0;
}

void update(int v,long long l,long long r,int ll,int rr,long long val){
    if(ll>rr)return;

    if(l==ll and r==rr){
        tree[v]+=val*(r-l+1);
        lz[v]+=val;
    }else{
        psh2(v,l,r);

        int tt=(l+r)/2;
        update(2*v,l,tt,ll,min(tt,rr),val);
        update(2*v+1,tt+1,r,max(tt+1,ll),rr,val);

        tree[v]=tree[2*v]+tree[2*v+1];
    }
}

long long getval(int v,int l,int r,int pos){
    if(l==r)return tree[v];

    psh2(v,l,r);
    int tt=(l+r)/2;
    if(pos<=tt)return getval(2*v,l,tt,pos);
    else return getval(2*v+1,tt+1,r,pos);
}

int getpos(int v,int l,int r,long long sum){
    if(l==r)return l;

    psh2(v,l,r);

    int tt=(l+r)/2;
    if(tree[2*v]>=sum)return getpos(2*v,l,tt,sum);
    return getpos(2*v+1,tt+1,r,sum-tree[2*v]);
}
 
int main(){
 
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    cin>>n>>m>>q;
    
    for(int i=1;i<=q;i++){
        cin>>type;
        if(type==1){
            cin>>l>>r>>s>>t;
            c[i]=s;
            queries[l].push_back({i,t,0});
            queries[r+1].push_back({i,t,1});
 
            add(1,1,n,l,r,t);
            update(1,1,n,l,r,t);
        }else if(type==2){
            cin>>l>>r>>s;
            add(1,1,n,l,r,-s);
        }else{
            cin>>s>>t;
            if(getsz(1,1,n,s)<t){
                ans[i]=-1;
            }else{
                if(getval(1,1,n,s)<getsz(1,1,n,s))cout<<1/0;
                ask[s].push_back({getval(1,1,n,s)-getsz(1,1,n,s)+t,i});
            }
        }
    }
    
    for(int i=1;i<=max(n,q)*4;i++){
        tree[i]=lz[i]=0;
    }

    for(int i=1;i<=n;i++){
        for(int f=0;f<queries[i].size();f++){
            if(queries[i][f].type==0){
                update(1,1,q,queries[i][f].c,queries[i][f].c,queries[i][f].k);
                total+=queries[i][f].k;
            }else{
                update(1,1,q,queries[i][f].c,queries[i][f].c,-queries[i][f].k);
                total-=queries[i][f].k;
            }
        }

        for(int f=0;f<ask[i].size();f++){
            ans[ask[i][f].id]=c[getpos(1,1,q,ask[i][f].kth)];
        }
    }

    for(int i=1;i<=q;i++){
        if(ans[i]!=0){
            if(ans[i]==-1)cout<<0<<"\n";
            else cout<<ans[i]<<"\n";
        }
    }
            
 
    return 0;
}

Compilation message

foodcourt.cpp: In function 'int main()':
foodcourt.cpp:162:58: warning: division by zero [-Wdiv-by-zero]
  162 |                 if(getval(1,1,n,s)<getsz(1,1,n,s))cout<<1/0;
      |                                                         ~^~
foodcourt.cpp:163:65: warning: narrowing conversion of '((getval(1, 1, n, ((int)s)) - getsz(1, 1, n, ((int)s))) + t)' from 'long long int' to 'int' [-Wnarrowing]
  163 |                 ask[s].push_back({getval(1,1,n,s)-getsz(1,1,n,s)+t,i});
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
foodcourt.cpp:173:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  173 |         for(int f=0;f<queries[i].size();f++){
      |                     ~^~~~~~~~~~~~~~~~~~
foodcourt.cpp:183:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<qr>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  183 |         for(int f=0;f<ask[i].size();f++){
      |                     ~^~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 29276 KB Output is correct
2 Correct 10 ms 29276 KB Output is correct
3 Correct 11 ms 29276 KB Output is correct
4 Correct 10 ms 29532 KB Output is correct
5 Correct 9 ms 29276 KB Output is correct
6 Correct 11 ms 29148 KB Output is correct
7 Correct 10 ms 29528 KB Output is correct
8 Correct 10 ms 29532 KB Output is correct
9 Correct 10 ms 29276 KB Output is correct
10 Correct 11 ms 29524 KB Output is correct
11 Correct 12 ms 29524 KB Output is correct
12 Correct 11 ms 29276 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 9 ms 29276 KB Output is correct
15 Correct 9 ms 29276 KB Output is correct
16 Correct 11 ms 29276 KB Output is correct
17 Correct 9 ms 29276 KB Output is correct
18 Correct 10 ms 29384 KB Output is correct
19 Correct 9 ms 29492 KB Output is correct
20 Correct 11 ms 29580 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 29276 KB Output is correct
2 Correct 10 ms 29276 KB Output is correct
3 Correct 11 ms 29276 KB Output is correct
4 Correct 10 ms 29532 KB Output is correct
5 Correct 9 ms 29276 KB Output is correct
6 Correct 11 ms 29148 KB Output is correct
7 Correct 10 ms 29528 KB Output is correct
8 Correct 10 ms 29532 KB Output is correct
9 Correct 10 ms 29276 KB Output is correct
10 Correct 11 ms 29524 KB Output is correct
11 Correct 12 ms 29524 KB Output is correct
12 Correct 11 ms 29276 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 9 ms 29276 KB Output is correct
15 Correct 9 ms 29276 KB Output is correct
16 Correct 11 ms 29276 KB Output is correct
17 Correct 9 ms 29276 KB Output is correct
18 Correct 10 ms 29384 KB Output is correct
19 Correct 9 ms 29492 KB Output is correct
20 Correct 11 ms 29580 KB Output is correct
21 Incorrect 11 ms 29276 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 104 ms 40916 KB Output is correct
2 Correct 101 ms 41816 KB Output is correct
3 Correct 76 ms 41004 KB Output is correct
4 Correct 76 ms 40784 KB Output is correct
5 Correct 101 ms 41716 KB Output is correct
6 Correct 87 ms 41556 KB Output is correct
7 Correct 28 ms 34700 KB Output is correct
8 Correct 29 ms 34692 KB Output is correct
9 Correct 91 ms 41184 KB Output is correct
10 Correct 92 ms 41152 KB Output is correct
11 Correct 87 ms 41040 KB Output is correct
12 Correct 127 ms 41008 KB Output is correct
13 Correct 83 ms 41696 KB Output is correct
14 Correct 89 ms 41888 KB Output is correct
15 Correct 100 ms 43348 KB Output is correct
16 Correct 113 ms 43348 KB Output is correct

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 558 ms 76836 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 29276 KB Output is correct
2 Correct 10 ms 29276 KB Output is correct
3 Correct 11 ms 29276 KB Output is correct
4 Correct 10 ms 29532 KB Output is correct
5 Correct 9 ms 29276 KB Output is correct
6 Correct 11 ms 29148 KB Output is correct
7 Correct 10 ms 29528 KB Output is correct
8 Correct 10 ms 29532 KB Output is correct
9 Correct 10 ms 29276 KB Output is correct
10 Correct 11 ms 29524 KB Output is correct
11 Correct 12 ms 29524 KB Output is correct
12 Correct 11 ms 29276 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 9 ms 29276 KB Output is correct
15 Correct 9 ms 29276 KB Output is correct
16 Correct 11 ms 29276 KB Output is correct
17 Correct 9 ms 29276 KB Output is correct
18 Correct 10 ms 29384 KB Output is correct
19 Correct 9 ms 29492 KB Output is correct
20 Correct 11 ms 29580 KB Output is correct
21 Correct 104 ms 40916 KB Output is correct
22 Correct 101 ms 41816 KB Output is correct
23 Correct 76 ms 41004 KB Output is correct
24 Correct 76 ms 40784 KB Output is correct
25 Correct 101 ms 41716 KB Output is correct
26 Correct 87 ms 41556 KB Output is correct
27 Correct 28 ms 34700 KB Output is correct
28 Correct 29 ms 34692 KB Output is correct
29 Correct 91 ms 41184 KB Output is correct
30 Correct 92 ms 41152 KB Output is correct
31 Correct 87 ms 41040 KB Output is correct
32 Correct 127 ms 41008 KB Output is correct
33 Correct 83 ms 41696 KB Output is correct
34 Correct 89 ms 41888 KB Output is correct
35 Correct 100 ms 43348 KB Output is correct
36 Correct 113 ms 43348 KB Output is correct
37 Correct 101 ms 41196 KB Output is correct
38 Correct 94 ms 41536 KB Output is correct
39 Correct 26 ms 34604 KB Output is correct
40 Correct 30 ms 34608 KB Output is correct
41 Correct 113 ms 41384 KB Output is correct
42 Correct 110 ms 41552 KB Output is correct
43 Correct 101 ms 41552 KB Output is correct
44 Correct 105 ms 41488 KB Output is correct
45 Correct 101 ms 41408 KB Output is correct
46 Correct 101 ms 41496 KB Output is correct
47 Correct 58 ms 38384 KB Output is correct
48 Correct 86 ms 38760 KB Output is correct
49 Correct 80 ms 41012 KB Output is correct
50 Correct 93 ms 41180 KB Output is correct
51 Correct 110 ms 41360 KB Output is correct
52 Correct 128 ms 41348 KB Output is correct
53 Correct 84 ms 42336 KB Output is correct
54 Correct 117 ms 43072 KB Output is correct

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 123 ms 42068 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 29276 KB Output is correct
2 Correct 10 ms 29276 KB Output is correct
3 Correct 11 ms 29276 KB Output is correct
4 Correct 10 ms 29532 KB Output is correct
5 Correct 9 ms 29276 KB Output is correct
6 Correct 11 ms 29148 KB Output is correct
7 Correct 10 ms 29528 KB Output is correct
8 Correct 10 ms 29532 KB Output is correct
9 Correct 10 ms 29276 KB Output is correct
10 Correct 11 ms 29524 KB Output is correct
11 Correct 12 ms 29524 KB Output is correct
12 Correct 11 ms 29276 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 9 ms 29276 KB Output is correct
15 Correct 9 ms 29276 KB Output is correct
16 Correct 11 ms 29276 KB Output is correct
17 Correct 9 ms 29276 KB Output is correct
18 Correct 10 ms 29384 KB Output is correct
19 Correct 9 ms 29492 KB Output is correct
20 Correct 11 ms 29580 KB Output is correct
21 Incorrect 11 ms 29276 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 29276 KB Output is correct
2 Correct 10 ms 29276 KB Output is correct
3 Correct 11 ms 29276 KB Output is correct
4 Correct 10 ms 29532 KB Output is correct
5 Correct 9 ms 29276 KB Output is correct
6 Correct 11 ms 29148 KB Output is correct
7 Correct 10 ms 29528 KB Output is correct
8 Correct 10 ms 29532 KB Output is correct
9 Correct 10 ms 29276 KB Output is correct
10 Correct 11 ms 29524 KB Output is correct
11 Correct 12 ms 29524 KB Output is correct
12 Correct 11 ms 29276 KB Output is correct
13 Correct 8 ms 29276 KB Output is correct
14 Correct 9 ms 29276 KB Output is correct
15 Correct 9 ms 29276 KB Output is correct
16 Correct 11 ms 29276 KB Output is correct
17 Correct 9 ms 29276 KB Output is correct
18 Correct 10 ms 29384 KB Output is correct
19 Correct 9 ms 29492 KB Output is correct
20 Correct 11 ms 29580 KB Output is correct
21 Incorrect 11 ms 29276 KB Output isn't correct
22 Halted 0 ms 0 KB -