제출 #551235

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
551235	2022-04-20 06:11:47	alireza_kaviani	쌀 창고 (IOI11_ricehub)	C++17	100 / 100	31 ms	2612 KiB

ricehub

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#include "ricehub.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll MAXN = 1e5 + 10;
ll n , k , A[MAXN] , ps[MAXN];
int check(ll x){
  ll l = x / 2 , r = x - l - 1;
  for(int i = 1 ; i + x <= n + 1 ; i++){
    ll cost = ps[i + x - 1] - ps[i + l] - ps[i + l - 1] + ps[i - 1] + A[i + l] * (l - r);
    if(cost <= k) return 1;
  }
  return 0;
}
int besthub(int R, int L, int X[], long long B){
  n = R; k = B;
  for(int i = 1 ; i <= n ; i++){
    A[i] = X[i - 1];
    ps[i] = A[i] + ps[i - 1];
  }
  ll l = 1 , r = n + 1;
  while(r - l > 1){
    int mid = l + r >> 1;
    if(check(mid))  l = mid;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:29:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   29 |   int mid = l + r >> 1;
      |             ~~^~~

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