Submission #744027

#	Time	Username	Problem	Language	Result	Execution time	Memory
744027		boyliguanhan	Last supper (IOI12_supper)	C++17	0 / 100	287 ms	13816 KiB

advisor

#include "advisor.h"
#include<bits/stdc++.h>
using namespace std;
void ComputeAdvice(int *C, int N, int K, int M) {
    int bits = log2(K);
    for(int i = 0; i < N; i++)
        for(int j = 0; j < bits; j++)
            WriteAdvice((bool)C[i]&1<<j);
}

assistant

#include "assistant.h"
#include<bits/stdc++.h>
using namespace std;
void Assist(unsigned char *A, int N, int K, int R) {

  priority_queue<pair<int, int>> q;
  int last[N], nxt[N];
  memset(last, 1, sizeof last);
  int C[N], bits = log2(K);
  for(int i = 0; i < N; i++)
    for(int j = 0; j < bits; j++)
      C[i]|=A[i*bits+j]-'0' << j;
  for(int i = N; i--;)
    nxt[i] = last[C[i]], last[C[i]] = i;
  bool on[N];
  memset(on, 0, sizeof on);
  for(int i = 0; i < K; i++)
    q.push({last[i], i}), on[i] = 1;
  for(int i = 0; i < N; i++) {
    int col = GetRequest();
    if(!on[col]) {
      PutBack(q.top().second);
      on[q.top().second] = 0;
      q.pop();
      q.push({nxt[i], i});
      on[col] = 1;
    }
  }
}

Compilation message (stderr)

assistant.cpp: In function 'void Assist(unsigned char*, int, int, int)':
assistant.cpp:13:24: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   13 |       C[i]|=A[i*bits+j]-'0' << j;
      |             ~~~~~~~~~~~^~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 35
• Subtask 5: 0 / 39