oj.uz

답안 #315486

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
315486 2020-10-23T01:07:07 Z super_j6 Pinball (JOI14_pinball) C++14
0 / 100
 1 ms 384 KB 
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <map>
#include <iterator>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second

const ll inf = 0x3f3f3f3f3f3f3f3f;
const int mxn = 100000;
int n, m;
map<int, ll> dpl;
map<int, ll, greater<int>> dpr;

void add(auto &dp, int x, ll y){
	auto it = dp.insert({x, y}).f;
	it->s = min(it->s, y);
	while(it != dp.begin() && (--it)->s >= y) it = dp.erase(it);
	if(it != dp.end() && next(++it)->s <= y) dp.erase(it);
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n >> m;
	
	ll ret = !!~-m * inf;
	dpl[1] = 0, dpl[m] = inf, dpr[1] = inf, dpr[m] = 0;
	for(int i = 0; i < n; i++){
		int l, r, x, y;
		cin >> l >> r >> x >> y;
		ll vl = dpl.lower_bound(l)->s, vr = dpr.lower_bound(r)->s;
		ret = min(ret, vl + vr + y);
		add(dpl, x, vl + y), add(dpr, x, vr + y);
	}
	
	cout << (ret < inf ? ret : -1) << endl;

	return 0;
}

Compilation message

pinball.cpp:19:10: warning: use of 'auto' in parameter declaration only available with '-fconcepts'
   19 | void add(auto &dp, int x, ll y){
      |          ^~~~

Subtask #1
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Incorrect 0 ms 384 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Incorrect 0 ms 384 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Incorrect 0 ms 384 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Incorrect 0 ms 384 KB Output isn't correct
7 Halted 0 ms 0 KB -