oj.uz

답안 #220941

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
220941 2020-04-09T10:04:39 Z PeppaPig Pinball (JOI14_pinball) C++14
100 / 100
 232 ms 16876 KB 
#include <bits/stdc++.h>

#define long long long

using namespace std;

const int N = 3e5+5;

void update(long t[], int x, long k) {
    x += N;
    for(t[x] = min(t[x], k); x != 1; x >>= 1)
        t[x >> 1] = min(t[x], t[x ^ 1]);
}

long query(long t[], int l, int r) {
    long ret = 1e18;
    for(l += N, r += N + 1; l < r; l >>= 1, r >>= 1) {
        if(l & 1) ret = min(ret, t[l++]);
        if(r & 1) ret = min(ret, t[--r]);
    }
    return ret;
}

int n, m;
int A[N], B[N], C[N], D[N];
vector<int> coord;
long t1[N << 1], t2[N << 1];

int get(int x) { return lower_bound(coord.begin(), coord.end(), x) - coord.begin() + 1; }

int main() {
    fill_n(t1, N << 1, 1e18), fill_n(t2, N << 1, 1e18);

    scanf("%d %d", &n, &m);
    coord.emplace_back(1), coord.emplace_back(m);
    for(int i = 1; i <= n; i++) {
        scanf("%d %d %d %d", A + i, B + i, C + i, D + i);
        coord.emplace_back(A[i]), coord.emplace_back(B[i]);
        coord.emplace_back(C[i]);
    }
    sort(coord.begin(), coord.end());
    coord.resize(unique(coord.begin(), coord.end()) - coord.begin());
    
    long ans = 1e18;
    update(t1, 1, 0), update(t2, coord.size(), 0); 
    for(int i = 1; i <= n; i++) {
        long pre = query(t1, get(A[i]), get(B[i]));
        long suf = query(t2, get(A[i]), get(B[i]));
        ans = min(ans, pre + suf + D[i]);
        update(t1, get(C[i]), pre + D[i]), update(t2, get(C[i]), suf + D[i]);
    }
    if(ans == 1e18) printf("-1\n");
    else printf("%lld\n", ans);

    return 0;
}

Compilation message

pinball.cpp: In function 'int main()':
pinball.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
pinball.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d %d", A + i, B + i, C + i, D + i);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 9 ms 9728 KB Output is correct
5 Correct 9 ms 9728 KB Output is correct
6 Correct 9 ms 9728 KB Output is correct
7 Correct 9 ms 9728 KB Output is correct
8 Correct 9 ms 9728 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 9 ms 9728 KB Output is correct
5 Correct 9 ms 9728 KB Output is correct
6 Correct 9 ms 9728 KB Output is correct
7 Correct 9 ms 9728 KB Output is correct
8 Correct 9 ms 9728 KB Output is correct
9 Correct 10 ms 9728 KB Output is correct
10 Correct 9 ms 9728 KB Output is correct
11 Correct 10 ms 9728 KB Output is correct
12 Correct 10 ms 9728 KB Output is correct
13 Correct 11 ms 9728 KB Output is correct
14 Correct 9 ms 9728 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 9 ms 9728 KB Output is correct
5 Correct 9 ms 9728 KB Output is correct
6 Correct 9 ms 9728 KB Output is correct
7 Correct 9 ms 9728 KB Output is correct
8 Correct 9 ms 9728 KB Output is correct
9 Correct 10 ms 9728 KB Output is correct
10 Correct 9 ms 9728 KB Output is correct
11 Correct 10 ms 9728 KB Output is correct
12 Correct 10 ms 9728 KB Output is correct
13 Correct 11 ms 9728 KB Output is correct
14 Correct 9 ms 9728 KB Output is correct
15 Correct 9 ms 9728 KB Output is correct
16 Correct 10 ms 9728 KB Output is correct
17 Correct 10 ms 9856 KB Output is correct
18 Correct 14 ms 9984 KB Output is correct
19 Correct 11 ms 9856 KB Output is correct
20 Correct 11 ms 9856 KB Output is correct
21 Correct 10 ms 9856 KB Output is correct
22 Correct 11 ms 9856 KB Output is correct
23 Correct 10 ms 9856 KB Output is correct
24 Correct 11 ms 9856 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 9 ms 9728 KB Output is correct
5 Correct 9 ms 9728 KB Output is correct
6 Correct 9 ms 9728 KB Output is correct
7 Correct 9 ms 9728 KB Output is correct
8 Correct 9 ms 9728 KB Output is correct
9 Correct 10 ms 9728 KB Output is correct
10 Correct 9 ms 9728 KB Output is correct
11 Correct 10 ms 9728 KB Output is correct
12 Correct 10 ms 9728 KB Output is correct
13 Correct 11 ms 9728 KB Output is correct
14 Correct 9 ms 9728 KB Output is correct
15 Correct 9 ms 9728 KB Output is correct
16 Correct 10 ms 9728 KB Output is correct
17 Correct 10 ms 9856 KB Output is correct
18 Correct 14 ms 9984 KB Output is correct
19 Correct 11 ms 9856 KB Output is correct
20 Correct 11 ms 9856 KB Output is correct
21 Correct 10 ms 9856 KB Output is correct
22 Correct 11 ms 9856 KB Output is correct
23 Correct 10 ms 9856 KB Output is correct
24 Correct 11 ms 9856 KB Output is correct
25 Correct 29 ms 10496 KB Output is correct
26 Correct 53 ms 11644 KB Output is correct
27 Correct 137 ms 14312 KB Output is correct
28 Correct 146 ms 16616 KB Output is correct
29 Correct 104 ms 13424 KB Output is correct
30 Correct 180 ms 16876 KB Output is correct
31 Correct 211 ms 16872 KB Output is correct
32 Correct 201 ms 16872 KB Output is correct
33 Correct 33 ms 11132 KB Output is correct
34 Correct 98 ms 13552 KB Output is correct
35 Correct 135 ms 16876 KB Output is correct
36 Correct 232 ms 16876 KB Output is correct
37 Correct 189 ms 16876 KB Output is correct
38 Correct 180 ms 16876 KB Output is correct