oj.uz

답안 #523781

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
523781 2022-02-08T07:31:55 Z vonatlus Boat (APIO16_boat) C++17
31 / 100
 1625 ms 524292 KB 
/// adil sultanov | vonat1us 

#pragma GCC optimize("O3")
//#pragma comment(linker, "/STACK:36777216")

#include<bits/stdc++.h>

#define x first
#define y second
#define pb push_back
#define sz(x) (int) x.size()
#define all(z) (z).begin(), (z).end()
 
using namespace std;

using ll = long long;
using pii = pair<int, int>;                                   

const int MOD = 1e9 + 7; 
const int INF = 1e9 + 1e2;
  
void fin() {
#ifdef AM
    freopen(".in", "r", stdin);
#endif        
}                   

const bool flag = 0;

const int N = 510;

int add(int a, int b) {
    a += b;
    if (a >= MOD) a -= MOD;
    return a;
}

int a[N], b[N], len[N];

vector<int> dp[N];

void ma1n() {
    int n;
    cin >> n;
    for (int i = 1; i <= n; ++i) {
        cin >> a[i] >> b[i];
        len[i] = b[i]-a[i]+1;
    }
    if (n == 1) {
        cout << b[1]-a[1]+1, exit(0);
    }
    dp[0].resize(1);
    for (int i = 1; i <= n; ++i) {        
        dp[i].resize(len[i]+1);
        dp[i][0] = add(dp[i-1][0], dp[i-1][len[i-1]]);
        for (int x = a[i]; x <= b[i]; ++x) {
            for (int j = 1; j < i; ++j) {
                int r = min(b[j], x-1);
                if (a[j] <= r) {
                    dp[i][x-a[i]+1] = add(dp[i][x-a[i]+1], dp[j][r-a[j]+1]);
                }
            }
        }            
        for (int x = 1; x <= len[i]; ++x) {
            if (x+1 <= len[i]) dp[i][x+1] = add(dp[i][x+1], dp[i][x]);
            dp[i][x] = add(dp[i][x], x);
        }
    }
    cout << add(dp[n][0], dp[n][len[n]]);
} 

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(nullptr), fin();
    int ts = 1;
    if (flag) {
        cin >> ts;
    }
    while (ts--) {
        ma1n(); 
    }
    return 0;
}

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 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 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 2 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 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 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 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 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 2 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 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 906 ms 3796 KB Output is correct
22 Correct 834 ms 3812 KB Output is correct
23 Correct 795 ms 3576 KB Output is correct
24 Correct 862 ms 3968 KB Output is correct
25 Correct 871 ms 3820 KB Output is correct
26 Correct 1185 ms 4108 KB Output is correct
27 Correct 1244 ms 4276 KB Output is correct
28 Correct 1211 ms 4132 KB Output is correct
29 Correct 1223 ms 4288 KB Output is correct
30 Correct 1625 ms 4228 KB Output is correct
31 Correct 1618 ms 4188 KB Output is correct
32 Correct 1603 ms 4168 KB Output is correct
33 Correct 1558 ms 4264 KB Output is correct
34 Correct 1572 ms 4316 KB Output is correct
35 Correct 786 ms 3880 KB Output is correct
36 Correct 952 ms 4000 KB Output is correct
37 Correct 917 ms 4120 KB Output is correct
38 Correct 1020 ms 3980 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 239 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 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 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 2 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 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 906 ms 3796 KB Output is correct
22 Correct 834 ms 3812 KB Output is correct
23 Correct 795 ms 3576 KB Output is correct
24 Correct 862 ms 3968 KB Output is correct
25 Correct 871 ms 3820 KB Output is correct
26 Correct 1185 ms 4108 KB Output is correct
27 Correct 1244 ms 4276 KB Output is correct
28 Correct 1211 ms 4132 KB Output is correct
29 Correct 1223 ms 4288 KB Output is correct
30 Correct 1625 ms 4228 KB Output is correct
31 Correct 1618 ms 4188 KB Output is correct
32 Correct 1603 ms 4168 KB Output is correct
33 Correct 1558 ms 4264 KB Output is correct
34 Correct 1572 ms 4316 KB Output is correct
35 Correct 786 ms 3880 KB Output is correct
36 Correct 952 ms 4000 KB Output is correct
37 Correct 917 ms 4120 KB Output is correct
38 Correct 1020 ms 3980 KB Output is correct
39 Runtime error 239 ms 524292 KB Execution killed with signal 9
40 Halted 0 ms 0 KB -