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Submission #375746

# Submission time Handle Problem Language Result Execution time Memory
375746 2021-03-09T23:51:37 Z rama_pang Snowball (JOI21_ho_t2) C++14
100 / 100
 156 ms 9856 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);

  int N, Q;
  cin >> N >> Q;
  
  vector<long long> X(N);
  for (int i = 0; i < N; i++) {
    cin >> X[i];
  }

  vector<long long> W(Q);
  for (int i = 0; i < Q; i++) {
    cin >> W[i];
  }

  long long current_x = 0;
  vector<long long> L(Q + 1), R(Q + 1);
  for (int i = 1; i <= Q; i++) {
    current_x += W[i - 1];
    L[i] = min(L[i - 1], current_x);
    R[i] = max(R[i - 1], current_x);
  }

  vector<long long> ans(N);
  for (int i = 0; i < N; i++) {
    long long ansL, ansR;
    if (i == 0) {
      ansL = X[i] + L[Q];
    } else {
      int lo = 0, hi = Q;
      while (lo < hi) {
        int md = (lo + hi + 1) / 2;
        if (X[i - 1] + R[md] <= X[i] + L[md]) {
          lo = md;
        } else {
          hi = md - 1;
        }
      }
      assert(X[i - 1] + R[lo] <= X[i] + L[lo]);
      if (lo < Q && W[lo] < 0) {
        ansL = X[i - 1] + R[lo];
      } else {
        ansL = X[i] + L[lo];
      }
    }
    if (i + 1 == N) {
      ansR = X[i] + R[Q];
    } else {
      int lo = 0, hi = Q;
      while (lo < hi) {
        int md = (lo + hi + 1) / 2;
        if (X[i] + R[md] <= X[i + 1] + L[md]) {
          lo = md;
        } else {
          hi = md - 1;
        }
      }
      assert(X[i] + R[lo] <= X[i + 1] + L[lo]);
      if (lo < Q && W[lo] > 0) {
        ansR = X[i + 1] + L[lo];
      } else {
        ansR = X[i] + R[lo];
      }
    }
    ans[i] = ansR - ansL;
  }

  for (int i = 0; i < N; i++) {
    cout << ans[i] << '\n';
  }
  return 0;
}

Subtask #1
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 2 ms 492 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 0 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct

Subtask #2
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 492 KB Output is correct
8 Correct 2 ms 492 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 2 ms 492 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 0 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 32 ms 4972 KB Output is correct
21 Correct 31 ms 4972 KB Output is correct
22 Correct 30 ms 4972 KB Output is correct
23 Correct 33 ms 5100 KB Output is correct
24 Correct 38 ms 5484 KB Output is correct
25 Correct 156 ms 9764 KB Output is correct
26 Correct 145 ms 9708 KB Output is correct
27 Correct 144 ms 9580 KB Output is correct
28 Correct 147 ms 9580 KB Output is correct
29 Correct 143 ms 9324 KB Output is correct
30 Correct 131 ms 8940 KB Output is correct
31 Correct 92 ms 8684 KB Output is correct
32 Correct 74 ms 8684 KB Output is correct
33 Correct 13 ms 1388 KB Output is correct
34 Correct 149 ms 9764 KB Output is correct
35 Correct 145 ms 9580 KB Output is correct
36 Correct 146 ms 9856 KB Output is correct
37 Correct 143 ms 9580 KB Output is correct
38 Correct 142 ms 9580 KB Output is correct
39 Correct 139 ms 9600 KB Output is correct
40 Correct 100 ms 9580 KB Output is correct
41 Correct 33 ms 4972 KB Output is correct
42 Correct 73 ms 8684 KB Output is correct
43 Correct 115 ms 9836 KB Output is correct
44 Correct 37 ms 4972 KB Output is correct
45 Correct 81 ms 9580 KB Output is correct
46 Correct 107 ms 9836 KB Output is correct
47 Correct 106 ms 9836 KB Output is correct
48 Correct 107 ms 9836 KB Output is correct