제출 #979916

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
979916	2024-05-11 15:57:53	SmuggingSpun	쌀 창고 (IOI11_ricehub)	C++14	100 / 100	221 ms	8528 KiB

ricehub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "ricehub.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>void maximize(T& a, T b){
  if(a < b){
    a = b;
  }
}
const int lim = 1e5 + 5;
int N = 1, ans = 0, cnt[lim], to_X[lim];
map<int, int>X_to;
ll sum[lim];
ll get_value(int p, int range){
  int P = lower_bound(to_X + 1, to_X + N + 1, to_X[p] - range) - to_X - 1;
  ll sum_left = 1LL * to_X[p] * (cnt[p] - cnt[P]) - sum[p] + sum[P];
  P = upper_bound(to_X + 1, to_X + N + 2, to_X[p] + range) - to_X - 1;
  return sum_left + sum[P] - sum[p] - 1LL * to_X[p] * (cnt[P] - cnt[p]);
}
int besthub(int n, int L, int X[], ll B){
  memset(cnt, 0, sizeof(cnt));
  memset(sum, 0, sizeof(sum));
  X_to[to_X[1] = X[0]] = 1;
  for(int i = 0; i < n; i++){
    if(i > 0 && X[i] != X[i - 1]){
      X_to[to_X[++N] = X[i]] = N;
    }
    cnt[N]++;
    sum[N] += X[i];
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

컴파일 시 표준 에러 (stderr) 메시지

ricehub.cpp: In function 'int besthub(int, int, int*, ll)':
ricehub.cpp:26:14: warning: operation on 'N' may be undefined [-Wsequence-point]
   26 |    X_to[to_X[++N] = X[i]] = N;
      |              ^~~
ricehub.cpp:26:14: warning: operation on 'N' may be undefined [-Wsequence-point]
ricehub.cpp:48:50: warning: 'range' may be used uninitialized in this function [-Wmaybe-uninitialized]
   48 |   map<int, int>::iterator it = X_to.find(to_X[i] - range - 1);
      |                                          ~~~~~~~~^~~~~~~

• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 32 / 32