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답안 #405245

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
405245 2021-05-16T04:13:32 Z saarang123 Pinball (JOI14_pinball) C++17
100 / 100
 724 ms 39536 KB 
#include <bits/stdc++.h>
using namespace std;
const int MXN = 100 * 1000 + 3;
const long long INF = 0x3f3f3f3f3f3f3f3f;
long long tree[2][(3 * MXN) << 2];
map<int, long long> compress;
int A[MXN], B[MXN], C[MXN], D[MXN];
int N, M;

void update(int v, int tl, int tr, int pos, long long val, int idx) {
	if(tl == tr)
		return tree[idx][v] = min(tree[idx][v], val), void();
	int tm = (tl + tr) >> 1;
	if(pos <= tm)
		update(v << 1, tl, tm, pos, val, idx);
	else
		update(v << 1|1, tm + 1, tr, pos, val, idx);
	tree[idx][v] = min(tree[idx][v << 1], tree[idx][v << 1|1]);
}

void upd(int pos, long long val, int idx) {
	update(1, 1, 3 * M, pos, val, idx);
}

long long query(int v, int tl, int tr, int l, int r, int idx) {
	if(l > r) return INF;
	if(l <= tl && tr <= r)
		return tree[idx][v];
	int tm = (tl + tr) >> 1;
	return min(query(v << 1, tl, tm, l, min(tm, r), idx),
				query(v << 1|1, tm + 1, tr, max(tm + 1, l), r, idx));
}

long long query(int l, int r, int idx) {
	return query(1, 1, 3 * M, l, r, idx);
}

signed main() {
    std::ios::sync_with_stdio(0);
    std::cout.tie(0);
    std::cin.tie(0);
    cin >> M >> N;
    compress[1] = compress[N] = 0;
    for(int i = 1; i <= M; ++i) {
    	cin >> A[i] >> B[i] >> C[i] >> D[i];
    	compress[A[i]] = compress[B[i]] = compress[C[i]] = 0;
    }
    int t = 0;
    for(auto &[u, v] : compress)
    	v = ++t;

    memset(tree, 0x7f, sizeof tree);
    long long ans = INF;
    upd(compress[1], 0, 0);
    upd(compress[N], 0, 1);
    for(int i = 1; i <= M; i++) {
    	long long prefix = query(compress[A[i]], compress[B[i]], 0);
    	long long suffix = query(compress[A[i]], compress[B[i]], 1);
    	ans = min(ans, prefix + D[i] + suffix);
    	upd(compress[C[i]], prefix + D[i], 0);
    	upd(compress[C[i]], suffix + D[i], 1);
    }
    cout << (ans >= INF ? -1 : ans) << '\n';
    return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 18992 KB Output is correct
2 Correct 9 ms 19020 KB Output is correct
3 Correct 9 ms 19100 KB Output is correct
4 Correct 9 ms 19020 KB Output is correct
5 Correct 9 ms 19020 KB Output is correct
6 Correct 9 ms 19096 KB Output is correct
7 Correct 9 ms 19020 KB Output is correct
8 Correct 9 ms 19020 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 18992 KB Output is correct
2 Correct 9 ms 19020 KB Output is correct
3 Correct 9 ms 19100 KB Output is correct
4 Correct 9 ms 19020 KB Output is correct
5 Correct 9 ms 19020 KB Output is correct
6 Correct 9 ms 19096 KB Output is correct
7 Correct 9 ms 19020 KB Output is correct
8 Correct 9 ms 19020 KB Output is correct
9 Correct 9 ms 19020 KB Output is correct
10 Correct 9 ms 19020 KB Output is correct
11 Correct 9 ms 19020 KB Output is correct
12 Correct 9 ms 19148 KB Output is correct
13 Correct 9 ms 19152 KB Output is correct
14 Correct 9 ms 19100 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 18992 KB Output is correct
2 Correct 9 ms 19020 KB Output is correct
3 Correct 9 ms 19100 KB Output is correct
4 Correct 9 ms 19020 KB Output is correct
5 Correct 9 ms 19020 KB Output is correct
6 Correct 9 ms 19096 KB Output is correct
7 Correct 9 ms 19020 KB Output is correct
8 Correct 9 ms 19020 KB Output is correct
9 Correct 9 ms 19020 KB Output is correct
10 Correct 9 ms 19020 KB Output is correct
11 Correct 9 ms 19020 KB Output is correct
12 Correct 9 ms 19148 KB Output is correct
13 Correct 9 ms 19152 KB Output is correct
14 Correct 9 ms 19100 KB Output is correct
15 Correct 9 ms 19020 KB Output is correct
16 Correct 9 ms 19148 KB Output is correct
17 Correct 11 ms 19148 KB Output is correct
18 Correct 10 ms 19020 KB Output is correct
19 Correct 12 ms 19224 KB Output is correct
20 Correct 11 ms 19088 KB Output is correct
21 Correct 10 ms 19148 KB Output is correct
22 Correct 12 ms 19276 KB Output is correct
23 Correct 11 ms 19276 KB Output is correct
24 Correct 12 ms 19288 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 18992 KB Output is correct
2 Correct 9 ms 19020 KB Output is correct
3 Correct 9 ms 19100 KB Output is correct
4 Correct 9 ms 19020 KB Output is correct
5 Correct 9 ms 19020 KB Output is correct
6 Correct 9 ms 19096 KB Output is correct
7 Correct 9 ms 19020 KB Output is correct
8 Correct 9 ms 19020 KB Output is correct
9 Correct 9 ms 19020 KB Output is correct
10 Correct 9 ms 19020 KB Output is correct
11 Correct 9 ms 19020 KB Output is correct
12 Correct 9 ms 19148 KB Output is correct
13 Correct 9 ms 19152 KB Output is correct
14 Correct 9 ms 19100 KB Output is correct
15 Correct 9 ms 19020 KB Output is correct
16 Correct 9 ms 19148 KB Output is correct
17 Correct 11 ms 19148 KB Output is correct
18 Correct 10 ms 19020 KB Output is correct
19 Correct 12 ms 19224 KB Output is correct
20 Correct 11 ms 19088 KB Output is correct
21 Correct 10 ms 19148 KB Output is correct
22 Correct 12 ms 19276 KB Output is correct
23 Correct 11 ms 19276 KB Output is correct
24 Correct 12 ms 19288 KB Output is correct
25 Correct 40 ms 20264 KB Output is correct
26 Correct 112 ms 22976 KB Output is correct
27 Correct 355 ms 26544 KB Output is correct
28 Correct 241 ms 20804 KB Output is correct
29 Correct 254 ms 25596 KB Output is correct
30 Correct 322 ms 21760 KB Output is correct
31 Correct 593 ms 31132 KB Output is correct
32 Correct 531 ms 28196 KB Output is correct
33 Correct 64 ms 22980 KB Output is correct
34 Correct 275 ms 29264 KB Output is correct
35 Correct 322 ms 39372 KB Output is correct
36 Correct 724 ms 39496 KB Output is correct
37 Correct 580 ms 39420 KB Output is correct
38 Correct 542 ms 39536 KB Output is correct