답안 #946526

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
946526	2024-03-14T18:09:17 Z	n3rm1n	Boat (APIO16_boat)	C++17	31 / 100	1932 ms	524288 KB

boat

/// boat
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int MAXN = 505, MAXX = 1e6+10;
void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}
int n, m;
int a[MAXN], b[MAXN];
unordered_map < int, int > id;
vector < int > g, u;
void read_hash()
{
    cin >> n;
    for (int i = 1; i <= n; ++ i)
    {
        cin >> a[i] >> b[i];
        for (int j = a[i]; j <= b[i]; ++ j)
            g.push_back(j);
    }
    sort(g.begin(), g.end());
    u.push_back(g[0]);
    for (int i = 1; i < g.size(); ++ i)
    {
        if(u.back() != g[i])
            u.push_back(g[i]);
    }
    for (int i = 0; i < u.size(); ++ i)
    {
        id[u[i]] = i+1;
    }
}

int dp[MAXX];
const int mod = 1e9 + 7;
int pref[MAXX];
void solve()
{
    int ans = 0;
    int maxx = u.size();
    for (int i = 1; i <= n; ++ i)
    {

        for (int j = id[b[i]]; j >= id[a[i]]; -- j)
        {
            dp[j] += pref[j-1] + 1;
            dp[j] %= mod;
        }
        for (int j = id[a[i]]; j <= u.size(); ++ j)
            pref[j] = (pref[j-1] + dp[j]) % mod;

    }

    ans = pref[maxx];
    ans %= mod;
    cout << ans << endl;
}
int main()
{
    speed();

    read_hash();
    solve();
    return 0;
}

Compilation message

boat.cpp: In function 'void read_hash()':
boat.cpp:27:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (int i = 1; i < g.size(); ++ i)
      |                     ~~^~~~~~~~~~
boat.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (int i = 0; i < u.size(); ++ i)
      |                     ~~^~~~~~~~~~
boat.cpp: In function 'void solve()':
boat.cpp:53:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for (int j = id[a[i]]; j <= u.size(); ++ j)
      |                                ~~^~~~~~~~~~~

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 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	348 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	344 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	348 KB	Output is correct
14	Correct	1 ms	348 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

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	344 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	348 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	344 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	348 KB	Output is correct
14	Correct	1 ms	348 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	44 ms	6356 KB	Output is correct
22	Correct	44 ms	5076 KB	Output is correct
23	Correct	43 ms	5588 KB	Output is correct
24	Correct	45 ms	4560 KB	Output is correct
25	Correct	46 ms	4816 KB	Output is correct
26	Correct	46 ms	6612 KB	Output is correct
27	Correct	48 ms	6352 KB	Output is correct
28	Correct	48 ms	5844 KB	Output is correct
29	Correct	46 ms	5072 KB	Output is correct
30	Correct	1932 ms	58412 KB	Output is correct
31	Correct	1887 ms	57224 KB	Output is correct
32	Correct	1904 ms	58044 KB	Output is correct
33	Correct	1848 ms	57168 KB	Output is correct
34	Correct	1847 ms	57404 KB	Output is correct
35	Correct	1772 ms	55228 KB	Output is correct
36	Correct	1866 ms	56908 KB	Output is correct
37	Correct	1860 ms	57288 KB	Output is correct
38	Correct	1789 ms	56736 KB	Output is correct

Subtask #3
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	435 ms	524288 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	344 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	348 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	344 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	348 KB	Output is correct
14	Correct	1 ms	348 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	44 ms	6356 KB	Output is correct
22	Correct	44 ms	5076 KB	Output is correct
23	Correct	43 ms	5588 KB	Output is correct
24	Correct	45 ms	4560 KB	Output is correct
25	Correct	46 ms	4816 KB	Output is correct
26	Correct	46 ms	6612 KB	Output is correct
27	Correct	48 ms	6352 KB	Output is correct
28	Correct	48 ms	5844 KB	Output is correct
29	Correct	46 ms	5072 KB	Output is correct
30	Correct	1932 ms	58412 KB	Output is correct
31	Correct	1887 ms	57224 KB	Output is correct
32	Correct	1904 ms	58044 KB	Output is correct
33	Correct	1848 ms	57168 KB	Output is correct
34	Correct	1847 ms	57404 KB	Output is correct
35	Correct	1772 ms	55228 KB	Output is correct
36	Correct	1866 ms	56908 KB	Output is correct
37	Correct	1860 ms	57288 KB	Output is correct
38	Correct	1789 ms	56736 KB	Output is correct
39	Runtime error	435 ms	524288 KB	Execution killed with signal 9
40	Halted	0 ms	0 KB	-

답안 #946526

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 22.0 / 22.0

Subtask #3 0 / 27.0

Subtask #4 0 / 42.0

Subtask #1
9.0 / 9.0

Subtask #2
22.0 / 22.0

Subtask #3
0 / 27.0

Subtask #4
0 / 42.0