oj.uz

Submission #362981

# Submission time Handle Problem Language Result Execution time Memory
362981 2021-02-05T01:58:43 Z casperwang Last supper (IOI12_supper) C++14
0 / 100
 357 ms 17472 KB 
#include <bits/stdc++.h>
#include "advisor.h"
#define pb emplace_back
#define pii pair<int,int>
#define ff first
#define ss second
using namespace std;
#define debug(args...) kout("[ " + string(#args) + " ]", args)
void kout() { cerr << endl; }
template <class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ',kout(b...); }
template <class T> void pary(T L, T R) { while (L != R) cerr << *L << " \n"[++L==R]; }

const int MAXN = 100000;
const int P = 17;
vector <int> nxt[MAXN+1];
vector <int> cur;
vector <int> pos;
vector <bool> inseg;

class Seg {
private:
  pii arr[MAXN*4+5];
  void pull(int now) {
    arr[now] = max(arr[now*2], arr[now*2+1]);
  }
public:
  void build(int now, int l, int r) {
    if (l == r) {
      arr[now] = pii(*nxt[l].begin(), l);
      return;
    }
    int mid = l + r >> 1;
    build(now*2  , l, mid);
    build(now*2+1,mid+1,r);
    pull(now);
    return;
  }
  void mdy(int p, int id, int now, int l, int r) {
    if (l == p && r == p) {
      arr[now] = pii(nxt[id][cur[id]], l);
      return;
    } else if (l > p || r < p) return;
    int mid = l + r >> 1;
    mdy(p, id, now*2  , l, mid);
    mdy(p, id, now*2+1,mid+1,r);
    pull(now);
    return;
  }
  pii qry() {
    return arr[1];
  }
} seg;

void init(int *C, int N, int K, int M) {
  cur.resize(N);
  pos.resize(K);
  inseg.resize(K);
  for (int i = 0; i < N; i++) nxt[C[i]].pb(i);
  for (int i = 0; i < N; i++) nxt[i].pb(N);
  for (int i = 0; i < K; i++) inseg[i] = true;
  for (int i = 0; i < K; i++) pos[i] = i;
}

void Write(int num) {
  for (int i = 0; i < P; i++) {
    if ((1<<i) & num)
      WriteAdvice(1);
    else
      WriteAdvice(0);
  }
}

void ComputeAdvice(int *C, int N, int K, int M) {
  init(C, N, K, M);
  seg.build(1, 1, K-1);
  for (int i = 0; i < N; i++) {
    cur[C[i]]++;
    if (inseg[C[i]]) continue;
    auto [_t, p] = seg.qry();
    Write(pos[p]);
    pos[p] = C[i];
    seg.mdy(p, C[i], 1, 1, K-1);
  }
}

#include <bits/stdc++.h>
#include "assistant.h"
using namespace std;
#define debug(args...) kout("[ " + string(#args) + " ]", args)
void kout() { cerr << endl; }
template <class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ',kout(b...); }
template <class T> void pary(T L, T R) { while (L != R) cerr << *L << " \n"[++L==R]; }

const int MAXN = 100000;
const int P = 17;
vector <int> pos;
vector <bool> inseg;

void init(int N, int K, int M) {
  pos.resize(K);
  inseg.resize(K);
  for (int i = 0; i < K; i++) inseg[i] = true;
  for (int i = 0; i < K; i++) pos[i] = i;
}

int fnd(unsigned char *A, int a) {
  int st = a * P, num = 0;
  for (int i = st; i < st + P; i++) {
    if ((int)A[i]) num += (1<<(i-st));
  }
  inseg[num] = false;
  return num;
}

void Assist(unsigned char *A, int N, int K, int R) {
  init(N, K, R);
  int now = 0;
  for (int i = 0; i < N; i++) {
    int req = GetRequest();
    if (!inseg[req]) {
      inseg[req] = true;
      PutBack(fnd(A, now++));
    }
  }
}

Compilation message

advisor.cpp: In member function 'void Seg::build(int, int, int)':
advisor.cpp:32:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   32 |     int mid = l + r >> 1;
      |               ~~^~~
advisor.cpp: In member function 'void Seg::mdy(int, int, int, int, int)':
advisor.cpp:43:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   43 |     int mid = l + r >> 1;
      |               ~~^~~
advisor.cpp: In function 'void ComputeAdvice(int*, int, int, int)':
advisor.cpp:79:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   79 |     auto [_t, p] = seg.qry();
      |          ^

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3240 KB Output is correct
2 Incorrect 3 ms 3044 KB Output isn't correct - not an optimal way
3 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 41 ms 4604 KB Error - Putting back a color that is not on the scaffold
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 285 ms 14560 KB Error - Putting back a color that is not on the scaffold
2 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3544 KB Error - advice is too long
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 39.0

# Verdict Execution time Memory Grader output
1 Incorrect 357 ms 17276 KB Error - Putting back a color that is not on the scaffold
2 Incorrect 349 ms 17176 KB Error - Putting back a color that is not on the scaffold
3 Incorrect 340 ms 16828 KB Error - Putting back a color that is not on the scaffold
4 Incorrect 341 ms 16812 KB Error - Putting back a color that is not on the scaffold
5 Incorrect 335 ms 16696 KB Error - Putting back a color that is not on the scaffold
6 Incorrect 343 ms 16852 KB Error - Putting back a color that is not on the scaffold
7 Incorrect 335 ms 16656 KB Error - Putting back a color that is not on the scaffold
8 Incorrect 339 ms 17472 KB Error - Putting back a color that is not on the scaffold
9 Incorrect 338 ms 16800 KB Error - Putting back a color that is not on the scaffold
10 Incorrect 334 ms 16732 KB Error - Putting back a color that is not on the scaffold