제출 #883489

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
883489	2023-12-05 10:59:15	vjudge1	Ants and Sugar (JOI22_sugar)	C++17	100 / 100	903 ms	118332 KiB

sugar

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// https://oj.uz/problem/view/JOI22_sugar
#include <bits/stdc++.h>
using namespace std;
/*
Hall's theorem
Answer = A - max(|S| - |NG(S)|)
*/
const int64_t inf = 1e18;
class segtree_t {
       public:
        segtree_t *left, *right;
        int l, r, m;
        int64_t x[2][2], lazyx, lazy_mid, mid;
        segtree_t(int l, int r) : l(l), r(r), m(l + r >> 1), lazy_mid(0), lazyx(0), mid(0) {
                for (int i = 0; i < 2; i++) {
                        for (int j = 0; j < 2; j++) {
                                x[i][j] = 0;
                        }
                }
                if (l == r) return;
                left = new segtree_t(l, m);
                right = new segtree_t(m + 1, r);
        }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

sugar.cpp: In constructor 'segtree_t::segtree_t(int, int)':
sugar.cpp:21:51: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   21 |         segtree_t(int l, int r) : l(l), r(r), m(l + r >> 1), lazy_mid(0), lazyx(0), mid(0) {
      |                                                 ~~^~~
sugar.cpp:19:33: warning: 'segtree_t::lazy_mid' will be initialized after [-Wreorder]
   19 |         int64_t x[2][2], lazyx, lazy_mid, mid;
      |                                 ^~~~~~~~
sugar.cpp:19:26: warning:   'int64_t segtree_t::lazyx' [-Wreorder]
   19 |         int64_t x[2][2], lazyx, lazy_mid, mid;
      |                          ^~~~~
sugar.cpp:21:9: warning:   when initialized here [-Wreorder]
   21 |         segtree_t(int l, int r) : l(l), r(r), m(l + r >> 1), lazy_mid(0), lazyx(0), mid(0) {
      |         ^~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 16 / 16
• Subtask 3: 26 / 26
• Subtask 4: 52 / 52