oj.uz

Submission #875593

# Submission time Handle Problem Language Result Execution time Memory
875593 2023-11-20T06:32:07 Z NeroZein Boat (APIO16_boat) C++17
31 / 100
 1036 ms 524288 KB 
#include "bits/stdc++.h"
using namespace std;

#ifdef Nero
#include "Deb.h"
#else
#define deb(...)
#endif

const int md = (int) 1e9 + 7; 

void add(int& a, int b) {
  a += b;
  if (a >= md) a -= md; 
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int n;
  cin >> n;
  vector<int> a(n), b(n), c; 
  for (int i = 0; i < n; ++i) {
    cin >> a[i] >> b[i]; 
    for (int j = a[i]; j <= b[i]; ++j) {
      c.push_back(j); 
    }
  }
  sort(c.begin(), c.end());
  c.resize(unique(c.begin(), c.end()) - c.begin()); 
  vector<int> dp(n); 
  for (int i : c) {
    vector<int> pd(n); 
    for (int j = 0; j < n; ++j) {
      pd[j] = dp[j];
      dp[j] = 0; 
    }
    int s = 1; 
    for (int j = 0; j < n; ++j) {
      dp[j] = pd[j];
      if (a[j] <= i && b[j] >= i) {
        add(dp[j], s);         
      }
      add(s, pd[j]); 
    }
  }
  int ans = 0; 
  for (int i = 0; i < n; ++i) {
    add(ans, dp[i]); 
  }
  cout << ans << '\n'; 
  return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 484 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 484 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 37 ms 6612 KB Output is correct
22 Correct 35 ms 5844 KB Output is correct
23 Correct 32 ms 6356 KB Output is correct
24 Correct 35 ms 6356 KB Output is correct
25 Correct 35 ms 5588 KB Output is correct
26 Correct 35 ms 4820 KB Output is correct
27 Correct 36 ms 6356 KB Output is correct
28 Correct 39 ms 6364 KB Output is correct
29 Correct 36 ms 6356 KB Output is correct
30 Correct 1036 ms 6356 KB Output is correct
31 Correct 1010 ms 6612 KB Output is correct
32 Correct 1012 ms 5332 KB Output is correct
33 Correct 989 ms 5332 KB Output is correct
34 Correct 991 ms 4564 KB Output is correct
35 Correct 956 ms 5076 KB Output is correct
36 Correct 984 ms 5444 KB Output is correct
37 Correct 1025 ms 5844 KB Output is correct
38 Correct 967 ms 5588 KB Output is correct

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 401 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 484 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 37 ms 6612 KB Output is correct
22 Correct 35 ms 5844 KB Output is correct
23 Correct 32 ms 6356 KB Output is correct
24 Correct 35 ms 6356 KB Output is correct
25 Correct 35 ms 5588 KB Output is correct
26 Correct 35 ms 4820 KB Output is correct
27 Correct 36 ms 6356 KB Output is correct
28 Correct 39 ms 6364 KB Output is correct
29 Correct 36 ms 6356 KB Output is correct
30 Correct 1036 ms 6356 KB Output is correct
31 Correct 1010 ms 6612 KB Output is correct
32 Correct 1012 ms 5332 KB Output is correct
33 Correct 989 ms 5332 KB Output is correct
34 Correct 991 ms 4564 KB Output is correct
35 Correct 956 ms 5076 KB Output is correct
36 Correct 984 ms 5444 KB Output is correct
37 Correct 1025 ms 5844 KB Output is correct
38 Correct 967 ms 5588 KB Output is correct
39 Runtime error 401 ms 524288 KB Execution killed with signal 9
40 Halted 0 ms 0 KB -