제출 #384938

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
384938	2021-04-02 17:14:47	arman_ferdous	자동 인형 (IOI18_doll)	C++17	37 / 100	133 ms	11816 KiB

doll

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#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
#define sz(v) (int)v.size()
const int M = (1 << 20);
int x[M], y[M], cnt[M], maxSwitch;
void build(int u, int L, int R) {
  maxSwitch = max(maxSwitch, u);
  cnt[u] = 0;
  if(L == R) return;
  int mid = L + R >> 1, lc = u << 1, rc = lc | 1;
  x[u] = lc, y[u] = rc;
  build(lc, L, mid); build(rc, mid + 1, R);
}
void insert(int u, int L, int R, int nxt) {
  if(L == R) {
    if(~cnt[u] & 1) x[u] = -nxt;
    else y[u] = -nxt;
    cnt[u] ^= 1;
    return;
  } int mid = L + R >> 1, lc = u << 1, rc = lc | 1;
  if(~cnt[u] & 1) {
    cnt[u] ^= 1;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

doll.cpp: In function 'void build(int, int, int)':
doll.cpp:16:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   16 |   int mid = L + R >> 1, lc = u << 1, rc = lc | 1;
      |             ~~^~~
doll.cpp: In function 'void insert(int, int, int, int)':
doll.cpp:27:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |   } int mid = L + R >> 1, lc = u << 1, rc = lc | 1;
      |               ~~^~~

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