oj.uz

답안 #554555

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
554555 2022-04-28T17:48:05 Z AA_Surely Pinball (JOI14_pinball) C++14
100 / 100
 382 ms 47328 KB 
#include <bits/stdc++.h>

#define FOR(i,x,n) 	for(int i=x; i<n; i++)
#define F0R(i,n) 	FOR(i,0,n)
#define ROF(i,x,n) 	for(int i=n-1; i>=x; i--)
#define R0F(i,n) 	ROF(i,0,n)

#define WTF 		cout << "WTF" << endl

#define IOS 		ios::sync_with_stdio(false); cin.tie(0)
#define F 			first
#define S	 		second
#define pb 			push_back

#define ALL(x) 		x.begin(), x.end()
#define RALL(x) 	x.rbegin(), x.rend()

using namespace std;
typedef long long 		LL;

typedef pair<int, int> 	PII;
typedef pair<LL, LL> 	PLL;

typedef vector<int> 	VI;
typedef vector<LL> 		VLL;
typedef vector<PII> 	VPII;
typedef vector<PLL> 	VPLL;

const int N = 1e6 + 7;
const LL INF = 5e17 + 7;

#define L 0
#define R 1

#define lc now << 1
#define rc now << 1 | 1

LL n, m;
LL tree[2][N << 2], ns[N][4];
VLL comp;

LL get(int pl, int lq, int rq, int now = 1, int ls = 0, int rs = m - 1) {
    if (rq < lq || rq < ls || rs < lq) return INF;
    if (lq <= ls && rs <= rq) return tree[pl][now];
    int mid = (ls + rs) >> 1;
    return min(get(pl, lq, rq, lc, ls, mid), get(pl, lq, rq, rc, mid + 1, rs));
}

void mnfy(int pl, int id, LL val, int now = 1, int ls = 0, int rs = m - 1) {
    if (ls == rs) {
        tree[pl][now] = min(tree[pl][now], val);
        return;
    }

    int mid = (ls + rs) >> 1;
    if (id <= mid) mnfy(pl, id, val, lc, ls, mid);
    else mnfy(pl, id, val, rc, mid + 1, rs);

    tree[pl][now] = min(tree[pl][lc], tree[pl][rc]);
    return;
}

void build(int now = 1, int ls = 0, int rs = m - 1) {
    tree[L][now] = tree[R][now] = INF;
    if (ls == rs) return;
    int mid = (ls + rs) >> 1;
    build(lc, ls, mid); build(rc, mid + 1, rs);
    return;
}

int main() {
    IOS;
    
    cin >> n >> m;
    F0R(i, n) {
        F0R(j, 3) {
            cin >> ns[i][j];
            comp.pb(ns[i][j]);
            comp.pb(max(ns[i][j] - 1, 1ll));
            comp.pb(min(ns[i][j] + 1, m));
        }
        cin >> ns[i][3];
    }

    comp.pb(1); comp.pb(n);
    sort(ALL(comp));
    comp.resize(unique(ALL(comp)) - comp.begin());
    F0R(i, n) F0R(j, 3) ns[i][j] = lower_bound(ALL(comp), ns[i][j]) - comp.begin();

    if (m == 1) {
        cout << 0 << endl;
        return 0;
    }

    /*for(int on : comp) cout << on << ' ';
    cout << endl;*/
    
    m = comp.size();
    //cout << "size = " << m << endl;
    build();
    
    mnfy(L, 0, 0);
    mnfy(R, m - 1, 0);
    
    LL ans = INF;
    F0R(i, n) {
        ans = min(ans, get(L, ns[i][0], ns[i][1]) + get(R, ns[i][0], ns[i][1]) + ns[i][3]);

        LL mn = get(L, ns[i][0], ns[i][1]);
        mnfy(L, ns[i][2], mn + ns[i][3]);

        mn = get(R, ns[i][0], ns[i][1]);
        mnfy(R, ns[i][2], mn + ns[i][3]);

        
        /*cout << "L : ";
        F0R(i, m) cout << get(L, i, i) << ' ';
        cout << endl;

        cout << "R : ";
        F0R(i, m) cout << get(R, i, i) << ' ';
        cout << endl;*/
    }

    cout << (ans < INF ? ans : -1);
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 340 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 3 ms 724 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 3 ms 856 KB Output is correct
20 Correct 3 ms 724 KB Output is correct
21 Correct 2 ms 724 KB Output is correct
22 Correct 3 ms 1112 KB Output is correct
23 Correct 2 ms 1108 KB Output is correct
24 Correct 3 ms 1108 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 3 ms 724 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 3 ms 856 KB Output is correct
20 Correct 3 ms 724 KB Output is correct
21 Correct 2 ms 724 KB Output is correct
22 Correct 3 ms 1112 KB Output is correct
23 Correct 2 ms 1108 KB Output is correct
24 Correct 3 ms 1108 KB Output is correct
25 Correct 29 ms 3804 KB Output is correct
26 Correct 83 ms 11984 KB Output is correct
27 Correct 262 ms 18296 KB Output is correct
28 Correct 204 ms 14552 KB Output is correct
29 Correct 164 ms 15664 KB Output is correct
30 Correct 249 ms 16556 KB Output is correct
31 Correct 372 ms 30892 KB Output is correct
32 Correct 330 ms 30900 KB Output is correct
33 Correct 48 ms 11260 KB Output is correct
34 Correct 176 ms 23864 KB Output is correct
35 Correct 238 ms 47328 KB Output is correct
36 Correct 382 ms 47328 KB Output is correct
37 Correct 329 ms 47292 KB Output is correct
38 Correct 322 ms 47272 KB Output is correct