oj.uz

답안 #646791

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
646791 2022-09-30T16:52:42 Z ghostwriter Pinball (JOI14_pinball) C++14
100 / 100
 302 ms 17992 KB 
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include <debug.h>
#else
#define debug(...)
#endif
#define ft front
#define bk back
#define st first
#define nd second
#define ins insert
#define ers erase
#define pb push_back
#define pf push_front
#define _pb pop_back
#define _pf pop_front
#define lb lower_bound
#define ub upper_bound
#define mtp make_tuple
#define bg begin
#define ed end
#define all(x) (x).bg(), (x).ed()
#define sz(x) (int)(x).size()
typedef long long ll; typedef unsigned long long ull;
typedef double db; typedef long double ldb;
typedef pair<int, int> pi; typedef pair<ll, ll> pll;
typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pi> vpi; typedef vector<pll> vpll;
typedef string str;
template<typename T> T gcd(T a, T b) { return (b == 0? a : gcd(b, a % b)); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }
#define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
#define FOS(i, r, l) for (int (i) = (r); (i) >= (l); --(i))
#define FRN(i, n) for (int (i) = 0; (i) < (n); ++(i))
#define FSN(i, n) for (int (i) = (n) - 1; (i) >= 0; --(i))
#define EACH(i, x) for (auto &(i) : (x))
#define WHILE while
#define file "TEST"
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
ll rand(ll l, ll r) { return uniform_int_distribution<ll>(l, r)(rd); }
/*
----------------------------------------------------------------
    END OF TEMPLATE
----------------------------------------------------------------
    Tran The Bao - ghostwriter
    Training for VOI23 gold medal
----------------------------------------------------------------
    DIT ME CHUYEN BAO LOC
----------------------------------------------------------------
*/
const ll oo = 1e18;
const int T = 12e5 + 1;
const int MAXM = 1e5 + 1;
int m, n, a[MAXM], b[MAXM], c[MAXM], w[MAXM];
ll tr[T], d[MAXM], d1[MAXM], rs = oo;
vi v;
void upd(int i, int l, int r, int q, ll v) {
	if (r < q || l > q) return;
	if (l == r) {
		tr[i] = min(tr[i], v);
		return;
	}
	int mid = l + (r - l) / 2;
	upd(i * 2, l, mid, q, v);
	upd(i * 2 + 1, mid + 1, r, q, v);
	tr[i] = min(tr[i * 2], tr[i * 2 + 1]);
}
ll get(int i, int l, int r, int ql, int qr) {
	if (r < ql || l > qr) return oo;
	if (ql <= l && r <= qr) return tr[i];
	int mid = l + (r - l) / 2;
	return min(get(i * 2, l, mid, ql, qr), get(i * 2 + 1, mid + 1, r, ql, qr));
}
int getpos(int x) { return lb(all(v), x) - v.bg(); }
signed main() {
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    // freopen(file".inp", "r", stdin);
    // freopen(file".out", "w", stdout);
    cin >> m >> n;
    v.pb(0);
    FOR(i, 1, m) {
    	cin >> a[i] >> b[i] >> c[i] >> w[i];
    	v.pb(a[i]);
    	v.pb(b[i]);
    	v.pb(c[i]);
    }
    sort(all(v));
    FOR(i, 1, T - 1) tr[i] = oo;
    FOR(i, 1, m) {
    	d[i] = oo;
    	if (a[i] == 1) d[i] = w[i];
    	int pa = getpos(a[i]), pb = getpos(b[i]);
    	d[i] = min(d[i], get(1, 1, sz(v) - 1, pa, pb) + w[i]);
    	upd(1, 1, sz(v) - 1, getpos(c[i]), d[i]);
    }
    FOR(i, 1, T - 1) tr[i] = oo;
    FOR(i, 1, m) {
    	d1[i] = oo;
    	if (b[i] == n) d1[i] = w[i];
    	int pa = getpos(a[i]), pb = getpos(b[i]);
    	d1[i] = min(d1[i], get(1, 1, sz(v) - 1, pa, pb) + w[i]);
    	upd(1, 1, sz(v) - 1, getpos(c[i]), d1[i]);
    }
    FOR(i, 1, m) rs = min(rs, d[i] + d1[i] - w[i]);
    cout << (rs < oo? rs : -1);
    return 0;
}
/*
----------------------------------------------------------------
From Benq:
    stuff you should look for
        * int overflow, array bounds
        * special cases (n=1?)
        * do smth instead of nothing and stay organized
        * WRITE STUFF DOWN
        * DON'T GET STUCK ON ONE APPROACH
----------------------------------------------------------------
*/

Compilation message

pinball.cpp: In function 'int main()':
pinball.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
pinball.cpp:81:5: note: in expansion of macro 'FOR'
   81 |     FOR(i, 1, m) {
      |     ^~~
pinball.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
pinball.cpp:88:5: note: in expansion of macro 'FOR'
   88 |     FOR(i, 1, T - 1) tr[i] = oo;
      |     ^~~
pinball.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
pinball.cpp:89:5: note: in expansion of macro 'FOR'
   89 |     FOR(i, 1, m) {
      |     ^~~
pinball.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
pinball.cpp:96:5: note: in expansion of macro 'FOR'
   96 |     FOR(i, 1, T - 1) tr[i] = oo;
      |     ^~~
pinball.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
pinball.cpp:97:5: note: in expansion of macro 'FOR'
   97 |     FOR(i, 1, m) {
      |     ^~~
pinball.cpp:32:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   32 | #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i))
      |                               ^
pinball.cpp:104:5: note: in expansion of macro 'FOR'
  104 |     FOR(i, 1, m) rs = min(rs, d[i] + d1[i] - w[i]);
      |     ^~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9744 KB Output is correct
4 Correct 7 ms 9684 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 6 ms 9696 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9744 KB Output is correct
4 Correct 7 ms 9684 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 6 ms 9696 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9744 KB Output is correct
4 Correct 7 ms 9684 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 6 ms 9696 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9668 KB Output is correct
16 Correct 6 ms 9812 KB Output is correct
17 Correct 7 ms 9812 KB Output is correct
18 Correct 7 ms 9816 KB Output is correct
19 Correct 10 ms 9812 KB Output is correct
20 Correct 9 ms 9816 KB Output is correct
21 Correct 9 ms 9684 KB Output is correct
22 Correct 7 ms 9812 KB Output is correct
23 Correct 7 ms 9812 KB Output is correct
24 Correct 7 ms 9812 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9744 KB Output is correct
4 Correct 7 ms 9684 KB Output is correct
5 Correct 6 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 6 ms 9696 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9668 KB Output is correct
16 Correct 6 ms 9812 KB Output is correct
17 Correct 7 ms 9812 KB Output is correct
18 Correct 7 ms 9816 KB Output is correct
19 Correct 10 ms 9812 KB Output is correct
20 Correct 9 ms 9816 KB Output is correct
21 Correct 9 ms 9684 KB Output is correct
22 Correct 7 ms 9812 KB Output is correct
23 Correct 7 ms 9812 KB Output is correct
24 Correct 7 ms 9812 KB Output is correct
25 Correct 26 ms 10476 KB Output is correct
26 Correct 64 ms 11776 KB Output is correct
27 Correct 188 ms 15400 KB Output is correct
28 Correct 280 ms 17976 KB Output is correct
29 Correct 134 ms 13888 KB Output is correct
30 Correct 278 ms 17968 KB Output is correct
31 Correct 302 ms 17964 KB Output is correct
32 Correct 295 ms 17992 KB Output is correct
33 Correct 42 ms 11340 KB Output is correct
34 Correct 132 ms 13936 KB Output is correct
35 Correct 178 ms 17976 KB Output is correct
36 Correct 301 ms 17976 KB Output is correct
37 Correct 248 ms 17972 KB Output is correct
38 Correct 241 ms 17904 KB Output is correct