oj.uz

Submission #391981

# Submission time Handle Problem Language Result Execution time Memory
391981 2021-04-20T09:19:55 Z i_am_noob Cake (CEOI14_cake) C++17
100 / 100
 201 ms 3908 KB 
#include<bits/stdc++.h>
using namespace std;

#define ll int_fast32_t
#define int ll
#define rep(n) rep1(i,n)
#define rep1(i,n) rep2(i,0,n)
#define rep2(i,a,b) for(int i=a; i<(b); ++i)
#define rep3(i,a,b) for(int i=a; i>=(b); --i)
#define pb push_back
#define pii pair<int,int>
#define inf 0x3f3f3f3f
#define all(a) a.begin(),a.end()
#define sz(a) ((int)a.size())
#define pow2(x) (1ll<<(x))

#ifdef i_am_noob
#define bug(...) cerr << "#" << __LINE__ << " " << #__VA_ARGS__ << "- ", _do(__VA_ARGS__)
template<typename T> void _do(T x){cerr << x << endl;}
template<typename T, typename ...S> void _do(T x, S ...y){cerr << x << ", ";_do(y...);}
#else
#define bug(...) 49
#endif

const int maxn=300005;

int n,x,a[maxn],q,cur;
vector<int> vec;
vector<pii> vecl,vecr;

signed main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    cin >> n >> x;
    x--;
    rep(n) cin >> a[i];
    rep(n) a[i]--;
    vec.resize(min(n,(int)10));
    rep(n) if(a[i]>=n-10) vec[n-a[i]-1]=i;
    rep(sz(vec)-1) assert(a[vec[i]]>a[vec[i+1]]);
    rep3(i,x-1,0){
        if(vecl.empty()||a[i]>vecl.back().first) vecl.pb({a[i],i});
    }
    rep2(i,x+1,n){
        if(vecr.empty()||a[i]>vecr.back().first) vecr.pb({a[i],i});
    }
    vecl.pb({inf,-1}),vecr.pb({inf,n});
    cur=n;
    cin >> q;
    while(q--){
        char op;
        cin >> op;
        if(op=='E'){
            int pos,val;
            cin >> pos >> val;
            pos--,val--;
            rep(val) a[vec[i]]++;
            a[pos]=a[vec[val]]+1;
            for(int i=sz(vecl)-1; i>=0&&vecl[i].first>=a[pos]&&vecl[i].second!=pos; --i) vecl[i].first++;
            for(int i=sz(vecr)-1; i>=0&&vecr[i].first>=a[pos]&&vecr[i].second!=pos; --i) vecr[i].first++;
            if(pos<x){
                vector<pii> tmp;
                
                while(sz(vecl)&&(vecl.back().second<=pos)){
                    if(vecl.back().first>a[pos]) tmp.pb(vecl.back());
                    vecl.pop_back();
                }
                if(vecl.empty()||(vecl.back().second>pos&&vecl.back().first<a[pos])) vecl.pb({a[pos],pos});
                while(sz(tmp)) vecl.pb(tmp.back()),tmp.pop_back();

            }
            else if(pos>x){
                vector<pii> tmp;
                
                while(sz(vecr)&&vecr.back().second>=pos){
                    if(vecr.back().first>a[pos]) tmp.pb(vecr.back());
                    vecr.pop_back();
                }
                if(vecr.empty()||(vecr.back().second<pos&&vecr.back().first<a[pos])) vecr.pb({a[pos],pos});
                while(sz(tmp)) vecr.pb(tmp.back()),tmp.pop_back();

            }
            cur++;
            rep(sz(vec)) if(vec[i]==pos||i==sz(vec)-1){
                vec.erase(vec.begin()+i);
                break;
            }
            vec.insert(vec.begin()+val,pos);
        }
        else{
            int pos;
            cin >> pos;
            pos--;
            if(pos==x){
                cout << "0\n";
                continue;
            }
            if(pos<x){
                pii tmp={a[pos],pos};
                pii p=*--upper_bound(all(vecl),tmp,[&](const pii& i,const pii& j){return i.second>j.second;});
                pii q=*upper_bound(all(vecr),p);
                cout << q.second-pos-1 << "\n";
            }
            else{
                pii tmp={a[pos],pos};
                pii p=*--upper_bound(all(vecr),tmp,[&](const pii& i,const pii& j){return i.second<j.second;});
                pii q=*upper_bound(all(vecl),p);
                cout << pos-q.second-1 << "\n";
            }
        }
    }
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 4 ms 332 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 135 ms 380 KB Output is correct
2 Correct 117 ms 380 KB Output is correct
3 Correct 139 ms 332 KB Output is correct
4 Correct 115 ms 332 KB Output is correct
5 Correct 157 ms 492 KB Output is correct
6 Correct 140 ms 500 KB Output is correct
7 Correct 141 ms 496 KB Output is correct
8 Correct 122 ms 512 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 1604 KB Output is correct
2 Correct 31 ms 1440 KB Output is correct
3 Correct 32 ms 1420 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 48 ms 2808 KB Output is correct
6 Correct 49 ms 2864 KB Output is correct
7 Correct 45 ms 2652 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 460 KB Output is correct
2 Correct 14 ms 460 KB Output is correct
3 Correct 27 ms 844 KB Output is correct
4 Correct 26 ms 864 KB Output is correct
5 Correct 42 ms 548 KB Output is correct
6 Correct 45 ms 1208 KB Output is correct
7 Correct 51 ms 836 KB Output is correct
8 Correct 67 ms 1108 KB Output is correct
9 Correct 201 ms 3796 KB Output is correct
10 Correct 150 ms 1420 KB Output is correct
11 Correct 137 ms 1808 KB Output is correct
12 Correct 192 ms 3456 KB Output is correct
13 Correct 172 ms 3908 KB Output is correct