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답안 #131746

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
131746 2019-07-17T14:12:09 Z Just_Solve_The_Problem Pinball (JOI14_pinball) C++11
100 / 100
 357 ms 38892 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int maxn = (int)5e5 + 7;
const ll inf = (ll)1e18 + 7;

int n, m;
int a[maxn], b[maxn], c[maxn], d[maxn];
int used[maxn];
ll ans;
vector <int> vec;

struct T {
  ll tree[maxn * 4];
  T() {
    for (int i = 0; i < maxn * 4; i++) {
      tree[i] = inf;
    }
  }
  void upd(int pos, ll val, int v = 1, int tl = 0, int tr = maxn - 1) {
    tree[v] = min(tree[v], val);
    if (tl == tr) {
      return ;
    }
    int mid = (tl + tr) >> 1;
    if (pos <= mid) {
      upd(pos, val, v + v, tl, mid);
    } else {
      upd(pos, val, v + v + 1, mid + 1, tr);
    }
  }
  ll get(int l, int r, int v = 1, int tl = 0, int tr = maxn - 1) {
    if (tl > r || tr < l) return inf;
    if (l <= tl && tr <= r) return tree[v];
    int mid = (tl + tr) >> 1;
    return min(get(l, r, v + v, tl, mid), get(l, r, v + v + 1, mid + 1, tr));
  }
};
T l, r;

int getx(int x) {
  return lower_bound(vec.begin(), vec.end(), x) - vec.begin();
}

main() {
  scanf("%d %d", &m, &n);
  for (int i = 0; i < m; i++) {
    scanf("%d %d %d %d", &a[i], &b[i], &c[i], &d[i]);
    vec.push_back(a[i]);
    vec.push_back(b[i]);
    vec.push_back(c[i]);
  }
  ans = 1e18;
  vec.push_back(1);
  vec.push_back(n);
  sort(vec.begin(), vec.end());
  vec.resize(unique(vec.begin(), vec.end()) - vec.begin());
  l.upd(0, 0);
  r.upd(vec.size() - 1, 0);
  for (int i = 0; i < m; i++) {
    a[i] = getx(a[i]);
    b[i] = getx(b[i]);
    c[i] = getx(c[i]);
    ll left, right;
    tie(left, right) = make_tuple(l.get(a[i], b[i]), r.get(a[i], b[i]));
    ans = min(ans, left + right + d[i]);
    l.upd(c[i], left + d[i]);
    r.upd(c[i], right + d[i]);
  }
  if (ans == (ll)1e18) ans = -1;
  printf("%lld\n", ans);
}

Compilation message

pinball.cpp:48:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
pinball.cpp: In function 'int main()':
pinball.cpp:49:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &m, &n);
   ~~~~~^~~~~~~~~~~~~~~~~
pinball.cpp:51:10: 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 26 ms 31736 KB Output is correct
2 Correct 26 ms 31608 KB Output is correct
3 Correct 25 ms 31608 KB Output is correct
4 Correct 26 ms 31608 KB Output is correct
5 Correct 26 ms 31708 KB Output is correct
6 Correct 26 ms 31736 KB Output is correct
7 Correct 26 ms 31736 KB Output is correct
8 Correct 26 ms 31736 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 31736 KB Output is correct
2 Correct 26 ms 31608 KB Output is correct
3 Correct 25 ms 31608 KB Output is correct
4 Correct 26 ms 31608 KB Output is correct
5 Correct 26 ms 31708 KB Output is correct
6 Correct 26 ms 31736 KB Output is correct
7 Correct 26 ms 31736 KB Output is correct
8 Correct 26 ms 31736 KB Output is correct
9 Correct 31 ms 31608 KB Output is correct
10 Correct 26 ms 31736 KB Output is correct
11 Correct 27 ms 31736 KB Output is correct
12 Correct 27 ms 31736 KB Output is correct
13 Correct 27 ms 31736 KB Output is correct
14 Correct 27 ms 31736 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 31736 KB Output is correct
2 Correct 26 ms 31608 KB Output is correct
3 Correct 25 ms 31608 KB Output is correct
4 Correct 26 ms 31608 KB Output is correct
5 Correct 26 ms 31708 KB Output is correct
6 Correct 26 ms 31736 KB Output is correct
7 Correct 26 ms 31736 KB Output is correct
8 Correct 26 ms 31736 KB Output is correct
9 Correct 31 ms 31608 KB Output is correct
10 Correct 26 ms 31736 KB Output is correct
11 Correct 27 ms 31736 KB Output is correct
12 Correct 27 ms 31736 KB Output is correct
13 Correct 27 ms 31736 KB Output is correct
14 Correct 27 ms 31736 KB Output is correct
15 Correct 26 ms 31740 KB Output is correct
16 Correct 27 ms 31608 KB Output is correct
17 Correct 28 ms 31736 KB Output is correct
18 Correct 28 ms 31736 KB Output is correct
19 Correct 28 ms 31736 KB Output is correct
20 Correct 28 ms 31736 KB Output is correct
21 Correct 27 ms 31736 KB Output is correct
22 Correct 28 ms 31736 KB Output is correct
23 Correct 27 ms 31736 KB Output is correct
24 Correct 28 ms 31736 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 31736 KB Output is correct
2 Correct 26 ms 31608 KB Output is correct
3 Correct 25 ms 31608 KB Output is correct
4 Correct 26 ms 31608 KB Output is correct
5 Correct 26 ms 31708 KB Output is correct
6 Correct 26 ms 31736 KB Output is correct
7 Correct 26 ms 31736 KB Output is correct
8 Correct 26 ms 31736 KB Output is correct
9 Correct 31 ms 31608 KB Output is correct
10 Correct 26 ms 31736 KB Output is correct
11 Correct 27 ms 31736 KB Output is correct
12 Correct 27 ms 31736 KB Output is correct
13 Correct 27 ms 31736 KB Output is correct
14 Correct 27 ms 31736 KB Output is correct
15 Correct 26 ms 31740 KB Output is correct
16 Correct 27 ms 31608 KB Output is correct
17 Correct 28 ms 31736 KB Output is correct
18 Correct 28 ms 31736 KB Output is correct
19 Correct 28 ms 31736 KB Output is correct
20 Correct 28 ms 31736 KB Output is correct
21 Correct 27 ms 31736 KB Output is correct
22 Correct 28 ms 31736 KB Output is correct
23 Correct 27 ms 31736 KB Output is correct
24 Correct 28 ms 31736 KB Output is correct
25 Correct 46 ms 32376 KB Output is correct
26 Correct 82 ms 33496 KB Output is correct
27 Correct 203 ms 36276 KB Output is correct
28 Correct 197 ms 38712 KB Output is correct
29 Correct 151 ms 35572 KB Output is correct
30 Correct 229 ms 38760 KB Output is correct
31 Correct 300 ms 38764 KB Output is correct
32 Correct 287 ms 38764 KB Output is correct
33 Correct 60 ms 33012 KB Output is correct
34 Correct 153 ms 35392 KB Output is correct
35 Correct 220 ms 38892 KB Output is correct
36 Correct 357 ms 38888 KB Output is correct
37 Correct 319 ms 38760 KB Output is correct
38 Correct 354 ms 38764 KB Output is correct