oj.uz

답안 #388956

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
388956 2021-04-13T11:25:44 Z prvocislo Boat (APIO16_boat) C++17
31 / 100
 1016 ms 524292 KB 
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <queue>
#include <map>
#include <set>
#include <iomanip>
typedef long long ll;
using namespace std;

const ll mod = 1e9 + 7;
void upd(ll& a, const ll& b)
{
	a += b;
	if (a >= mod)a -= mod;
}
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n;
	cin >> n;
	vector<int> a(n + 1), b(n + 1);
	for (int i = 1; i <= n; i++) cin >> a[i] >> b[i];
	vector<int> v;
	for (int i = 0; i <= n; i++) for (int j = a[i]; j <= b[i]; j++) v.push_back(j);
	sort(v.begin(), v.end());
	v.erase(unique(v.begin(), v.end()), v.end());
	vector<ll> dp(v.size(), 0);
	dp[0] = 1;
	for (int i = 1; i <= n; i++)
	{
		ll sum = 0;
		for (int j = 0; j < v.size(); j++)
		{
			ll pv = dp[j];
			if (a[i] <= v[j] && v[j] <= b[i])
			{
				upd(dp[j], sum);
			}
			upd(sum, pv);
		}
	}
	ll ans = 0;
	for (int j = 1; j < v.size(); j++) upd(ans, dp[j]);
	cout << ans << "\n";
	return 0;
}

Compilation message

boat.cpp: In function 'int main()':
boat.cpp:35:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |   for (int j = 0; j < v.size(); j++)
      |                   ~~^~~~~~~~~~
boat.cpp:46:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |  for (int j = 1; j < v.size(); j++) upd(ans, dp[j]);
      |                  ~~^~~~~~~~~~

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 204 KB Output is correct

Subtask #2
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 47 ms 4548 KB Output is correct
22 Correct 47 ms 4548 KB Output is correct
23 Correct 43 ms 4548 KB Output is correct
24 Correct 46 ms 4548 KB Output is correct
25 Correct 48 ms 4548 KB Output is correct
26 Correct 49 ms 4548 KB Output is correct
27 Correct 50 ms 4536 KB Output is correct
28 Correct 61 ms 4548 KB Output is correct
29 Correct 50 ms 4548 KB Output is correct
30 Correct 972 ms 12080 KB Output is correct
31 Correct 979 ms 11832 KB Output is correct
32 Correct 1016 ms 12088 KB Output is correct
33 Correct 945 ms 11696 KB Output is correct
34 Correct 961 ms 11880 KB Output is correct
35 Correct 965 ms 11352 KB Output is correct
36 Correct 964 ms 11736 KB Output is correct
37 Correct 972 ms 11856 KB Output is correct
38 Correct 1008 ms 11484 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 709 ms 524292 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 42.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 47 ms 4548 KB Output is correct
22 Correct 47 ms 4548 KB Output is correct
23 Correct 43 ms 4548 KB Output is correct
24 Correct 46 ms 4548 KB Output is correct
25 Correct 48 ms 4548 KB Output is correct
26 Correct 49 ms 4548 KB Output is correct
27 Correct 50 ms 4536 KB Output is correct
28 Correct 61 ms 4548 KB Output is correct
29 Correct 50 ms 4548 KB Output is correct
30 Correct 972 ms 12080 KB Output is correct
31 Correct 979 ms 11832 KB Output is correct
32 Correct 1016 ms 12088 KB Output is correct
33 Correct 945 ms 11696 KB Output is correct
34 Correct 961 ms 11880 KB Output is correct
35 Correct 965 ms 11352 KB Output is correct
36 Correct 964 ms 11736 KB Output is correct
37 Correct 972 ms 11856 KB Output is correct
38 Correct 1008 ms 11484 KB Output is correct
39 Runtime error 709 ms 524292 KB Execution killed with signal 9
40 Halted 0 ms 0 KB -