Submission #535199

#	Time	Username	Problem	Language	Result	Execution time	Memory
535199		NaimSS	Cake (CEOI14_cake)	C++14	0 / 100	326 ms	17608 KiB

cake

#include <bits/stdc++.h>
#define ld long double
#define endl "\n"
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pb push_back
#define mp(a,b) make_pair(a,b)
#define ms(v,x) memset(v,x,sizeof(v))
#define all(v) v.begin(),v.end()
#define ff first
#define ss second
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define per(i, a, b) for(int i = b-1; i>=a ; i--)
#define trav(a, x) for(auto& a : x)
#define allin(a , x) for(auto a : x)
#define Unique(v) sort(all(v));v.erase(unique(all(v)),v.end());
#define sz(v) ((int)v.size())
using namespace std;
typedef vector<int> vi;
#define y1 abacaba
//#define left oooooopss
#define db(x) cerr << #x <<" == "<<x << endl;
#define db2(x,y) cerr<<#x <<" == "<<x<<", "<<#y<<" == "<<y<<endl;
#define db3(x,y,z) cerr << #x<<" == "<<x<<", "<<#y<<" == "<<y<<", "<<#z<<" == "<<z<<endl;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<ll> vl;
std::mt19937 rng((int) std::chrono::steady_clock::now().time_since_epoch().count());
ll cdiv(ll a, ll b) { return a/b+((a^b)>0&&a%b); } // divide a by b rounded up
ll fdiv(ll a, ll b) { return a/b-((a^b)<0&&a%b); } // divide a by b rounded down
inline ll mod(ll n, ll m ){ ll ret = n%m; if(ret < 0) ret += m; return ret; }
ll gcd(ll a, ll b){return (b == 0LL ? a : gcd(b, a%b));}
ll exp(ll b,ll e,ll m){
  b%=m;
  ll ans = 1;
  for (; e; b = b * b % m, e /= 2)
      if (e & 1) ans = ans * b % m;
  return ans;
}

// debug:
void dbg_out() { cerr << endl; }
template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T){ 
  cerr << ' ' << H; 
  dbg_out(T...); 
}
#ifdef LOCAL
#define dbg(...) cerr<<"(" << #__VA_ARGS__<<"):" , dbg_out(__VA_ARGS__) , cerr << endl
#else
#define dbg(...) 42
#endif
//

const int N = 500100;
int val[N];
char op[N];
int id[N],e[N],b[N];
vi top10;
int num[N],ini[N];
int nxt[N];
int last[N];

// seg:
int tree[4*N];
void upd(int no,int i,int j,int p,int v){
  if(i==j){
    tree[no] = v;
    return;
  }
  int m = (i+j)/2,l=2*no,r=2*no+1;
  if(p<=m)upd(l,i,m,p,v);
  else upd(r,m+1,j,p,v);
  tree[no] = max(tree[l],tree[r]);
}
int query(int no,int i,int j,int a,int b){
  if(i>j || i > b || j < a)return 0;
  if(a<=i && j<=b)return tree[no];
  int m = (i+j)/2,l=2*no,r=2*no+1;
  return max(query(l,i,m,a,b),query(r,m+1,j,a,b));
}
int buscaL(int no,int i,int j,int idr,int mx){
  if(i > idr)return 0;
  if(tree[no] < mx)return 0;
  if(i==j)return i;
  int m = (i+j)/2,l=2*no,r=2*no+1;
  int op1 = buscaL(r,m+1,j,idr,mx);
  if(op1!=0)return op1;
  return buscaL(l,i,m,idr,mx);
}
    int n,a;

int buscaR(int no,int i,int j,int idl,int mx){
  if(j < idl)return n+1;
  if(tree[no] < mx)return n+1;
  if(i==j)return i;
  int m = (i+j)/2,l=2*no,r=2*no+1;
  int op1 = buscaR(l,i,m,idl,mx);
  if(op1!=n+1)return op1;
  return buscaR(r,m+1,j,idl,mx);
}

int32_t main(){
    fastio;
    cin >> n >> a;
    for(int i=1;i<=n;i++){
      cin >> val[i];
      ini[i] = val[i];
      if(val[i] >= n-9)top10.pb(i);
    }
    int q;
    cin >> q;
    int mx = n;
    for(int i=1;i<=q;i++){
      cin >> op[i];
      if(op[i] == 'E'){
        cin >> id[i] >> e[i];
        sort(all(top10),[&](int i1,int i2){
          return  val[i1] > val[i2];
        });

        if(sz(top10) > min(n,10))top10.pop_back();
        mx += e[i];
        for(int j=0;j<e[i]-1;j++){
          
          val[top10[j]] = mx - j;
          
          if(last[top10[j]]>0)
            nxt[last[top10[j]]] = val[top10[j]];
          else
            ini[top10[j]] = val[top10[j]];
        }
        if(num[id[i]] == 0){
          ini[id[i]] = val[id[i]];
          num[id[i]]=1;
        }

        nxt[i] = mx - e[i] + 1;
        val[id[i]] = nxt[i];
        last[id[i]] = i;

        dbg(id[i],nxt[i]);

        int dentro=0;
        for(auto it : top10)if(it == id[i])dentro=1;
        if(!dentro)
          top10.pb(id[i]);
      }else{
        cin >> b[i];
      }
    }
    

    rep(i,1,n+1){
      upd(1,1,n,i,ini[i]);
      dbg(ini[i]);
    }

    rep(i,1,q+1)if(op[i]=='E'){
      dbg(id[i],nxt[i]);
      upd(1,1,n,id[i],nxt[i]);
    }else{
      if(b[i] == a){
        cout << 0 << endl;
      }else if(b[i] > a){
        int mx = query(1,1,n,a+1,b[i]);
        int l = (a == 1 ? 0 : buscaL(1,1,n,a-1,mx)) + 1;
        dbg(b[i],mx,l);
        cout << b[i]-l << endl;
      }else{
        int mx = query(1,1,n,b[i],a-1);
        int r = (a==n ? n + 1 : buscaR(1,1,n,a+1,mx)) - 1;
        dbg(b[i],mx,r);
        cout << r - b[i] << endl;
      }
    }
    // math -> gcd it all
    // Did u check N=1? Did you switch N,M?
}

Compilation message (stderr)

cake.cpp: In function 'int32_t main()':
cake.cpp:50:18: warning: statement has no effect [-Wunused-value]
   50 | #define dbg(...) 42
      |                  ^~
cake.cpp:141:9: note: in expansion of macro 'dbg'
  141 |         dbg(id[i],nxt[i]);
      |         ^~~
cake.cpp:50:18: warning: statement has no effect [-Wunused-value]
   50 | #define dbg(...) 42
      |                  ^~
cake.cpp:155:7: note: in expansion of macro 'dbg'
  155 |       dbg(ini[i]);
      |       ^~~
cake.cpp:50:18: warning: statement has no effect [-Wunused-value]
   50 | #define dbg(...) 42
      |                  ^~
cake.cpp:159:7: note: in expansion of macro 'dbg'
  159 |       dbg(id[i],nxt[i]);
      |       ^~~
cake.cpp:50:18: warning: statement has no effect [-Wunused-value]
   50 | #define dbg(...) 42
      |                  ^~
cake.cpp:167:9: note: in expansion of macro 'dbg'
  167 |         dbg(b[i],mx,l);
      |         ^~~
cake.cpp:50:18: warning: statement has no effect [-Wunused-value]
   50 | #define dbg(...) 42
      |                  ^~
cake.cpp:172:9: note: in expansion of macro 'dbg'
  172 |         dbg(b[i],mx,r);
      |         ^~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50