제출 #471116

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
471116	2021-09-07 07:05:11	gs18103	Bulldozer (JOI17_bulldozer)	C++14	100 / 100	809 ms	33496 KiB

bulldozer

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 <bits/stdc++.h>
#define eb emplace_back
#define em emplace
#define all(v) v.begin(), v.end()
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
const int MAX = 1010;
const int INF = 1e9;
const ll LINF = 9e18;
class SegmentTree {
    struct Node {
        ll lmx = 0, rmx = 0, mx = 0, s = 0;
        Node operator + (Node b) {
            Node ret;
            ret.lmx = max(lmx, s + b.lmx);
            ret.rmx = max(b.rmx, b.s + rmx);
            ret.mx = max({mx, b.mx, rmx + b.lmx});
            ret.s = s + b.s;
            return ret;
        }
    };
    vector <Node> tree;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

컴파일 시 표준 에러 (stderr) 메시지

bulldozer.cpp: In member function 'void SegmentTree::update(int, int, int, int, ll)':
bulldozer.cpp:48:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   48 |         int m = s + e >> 1;
      |                 ~~^~~
bulldozer.cpp: In function 'int main()':
bulldozer.cpp:117:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Evt>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |     for(int i = 0; i < line.size(); i++) {
      |                    ~~^~~~~~~~~~~~~
bulldozer.cpp:123:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Evt>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  123 |         if(i + 1 < line.size() && ccw(line[i], line[i+1]) == 0) continue;
      |            ~~~~~~^~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 20 / 20
• Subtask 3: 35 / 35
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20