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Submission #556513

# Submission time Handle Problem Language Result Execution time Memory
556513 2022-05-03T09:22:58 Z InternetPerson10 Boat (APIO16_boat) C++17
31 / 100
 730 ms 17860 KB 
#include <bits/stdc++.h>
typedef long long ll;

using namespace std;

const ll MOD = 1e9 + 7;
ll BIG = 1100002;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    vector<ll> a(n), b(n);
    vector<ll> nums;
    nums.resize(BIG);
    map<int, int> m;
    bool st1 = true;
    for(int i = 0; i < n; i++) {
        cin >> a[i] >> b[i];
        m[a[i]]++;
        m[b[i]]--;
        if(a[i] != b[i]) st1 = false;
    }
    int x = 0;
    ll mi = 0;
    for(auto p : m) {
        if(x == 0) {
            mi += p.first - 1;
        }
        for(int i = 0; i < n; i++) {
            if(a[i] == p.first) a[i] -= mi;
            if(b[i] == p.first) b[i] -= mi;
        }
        x += p.second;
        if(x == 0) {
            mi -= p.first;
        }
    }
    if(st1) {
        vector<ll> sums(n, 1);
        for(int i = 1; i < n; i++) {
            for(int j = 0; j < i; j++) {
                if(a[j] < a[i]) sums[i] += sums[j];
                sums[i] %= MOD;
            }
        }
        ll ans = 0;
        for(int i = 0; i < n; i++) ans += sums[i];
        cout << ans % MOD << '\n';
        return 0;
    }
    nums[0] = 1;
    for(int i = 0; i < n; i++) {
        ll g = 0;
        for(int j = 0; j < a[i]; j++) {
            g += nums[j];
            g %= MOD;
        }
        for(int j = a[i]; j <= b[i]; j++) {
            ll x = g;
            g += nums[j];
            nums[j] += x;
            nums[j] += MOD;
            nums[j] %= MOD;
            g %= MOD;
        }
    }
    ll ans = 0;
    for(int i = 1; i < BIG; i++) {
        ans += nums[i];
        ans %= MOD;
    }
    cout << ans << '\n';
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8916 KB Output is correct
2 Correct 6 ms 8916 KB Output is correct
3 Correct 6 ms 8916 KB Output is correct
4 Correct 6 ms 8940 KB Output is correct
5 Correct 5 ms 8916 KB Output is correct
6 Correct 7 ms 8916 KB Output is correct
7 Correct 6 ms 8916 KB Output is correct
8 Correct 5 ms 8916 KB Output is correct
9 Correct 5 ms 8916 KB Output is correct
10 Correct 5 ms 8916 KB Output is correct
11 Correct 5 ms 8916 KB Output is correct
12 Correct 5 ms 8916 KB Output is correct
13 Correct 5 ms 8916 KB Output is correct
14 Correct 5 ms 8960 KB Output is correct
15 Correct 5 ms 8916 KB Output is correct
16 Correct 5 ms 8852 KB Output is correct
17 Correct 4 ms 8916 KB Output is correct
18 Correct 5 ms 8876 KB Output is correct
19 Correct 7 ms 8916 KB Output is correct
20 Correct 5 ms 8916 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8916 KB Output is correct
2 Correct 6 ms 8916 KB Output is correct
3 Correct 6 ms 8916 KB Output is correct
4 Correct 6 ms 8940 KB Output is correct
5 Correct 5 ms 8916 KB Output is correct
6 Correct 7 ms 8916 KB Output is correct
7 Correct 6 ms 8916 KB Output is correct
8 Correct 5 ms 8916 KB Output is correct
9 Correct 5 ms 8916 KB Output is correct
10 Correct 5 ms 8916 KB Output is correct
11 Correct 5 ms 8916 KB Output is correct
12 Correct 5 ms 8916 KB Output is correct
13 Correct 5 ms 8916 KB Output is correct
14 Correct 5 ms 8960 KB Output is correct
15 Correct 5 ms 8916 KB Output is correct
16 Correct 5 ms 8852 KB Output is correct
17 Correct 4 ms 8916 KB Output is correct
18 Correct 5 ms 8876 KB Output is correct
19 Correct 7 ms 8916 KB Output is correct
20 Correct 5 ms 8916 KB Output is correct
21 Correct 17 ms 8916 KB Output is correct
22 Correct 18 ms 8916 KB Output is correct
23 Correct 18 ms 8976 KB Output is correct
24 Correct 17 ms 8916 KB Output is correct
25 Correct 18 ms 8916 KB Output is correct
26 Correct 17 ms 8916 KB Output is correct
27 Correct 17 ms 8916 KB Output is correct
28 Correct 16 ms 8916 KB Output is correct
29 Correct 16 ms 8916 KB Output is correct
30 Correct 703 ms 8916 KB Output is correct
31 Correct 710 ms 8916 KB Output is correct
32 Correct 724 ms 8904 KB Output is correct
33 Correct 706 ms 8916 KB Output is correct
34 Correct 730 ms 8916 KB Output is correct
35 Correct 704 ms 8916 KB Output is correct
36 Correct 700 ms 8916 KB Output is correct
37 Correct 723 ms 8916 KB Output is correct
38 Correct 716 ms 8916 KB Output is correct

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 17 ms 17860 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8916 KB Output is correct
2 Correct 6 ms 8916 KB Output is correct
3 Correct 6 ms 8916 KB Output is correct
4 Correct 6 ms 8940 KB Output is correct
5 Correct 5 ms 8916 KB Output is correct
6 Correct 7 ms 8916 KB Output is correct
7 Correct 6 ms 8916 KB Output is correct
8 Correct 5 ms 8916 KB Output is correct
9 Correct 5 ms 8916 KB Output is correct
10 Correct 5 ms 8916 KB Output is correct
11 Correct 5 ms 8916 KB Output is correct
12 Correct 5 ms 8916 KB Output is correct
13 Correct 5 ms 8916 KB Output is correct
14 Correct 5 ms 8960 KB Output is correct
15 Correct 5 ms 8916 KB Output is correct
16 Correct 5 ms 8852 KB Output is correct
17 Correct 4 ms 8916 KB Output is correct
18 Correct 5 ms 8876 KB Output is correct
19 Correct 7 ms 8916 KB Output is correct
20 Correct 5 ms 8916 KB Output is correct
21 Correct 17 ms 8916 KB Output is correct
22 Correct 18 ms 8916 KB Output is correct
23 Correct 18 ms 8976 KB Output is correct
24 Correct 17 ms 8916 KB Output is correct
25 Correct 18 ms 8916 KB Output is correct
26 Correct 17 ms 8916 KB Output is correct
27 Correct 17 ms 8916 KB Output is correct
28 Correct 16 ms 8916 KB Output is correct
29 Correct 16 ms 8916 KB Output is correct
30 Correct 703 ms 8916 KB Output is correct
31 Correct 710 ms 8916 KB Output is correct
32 Correct 724 ms 8904 KB Output is correct
33 Correct 706 ms 8916 KB Output is correct
34 Correct 730 ms 8916 KB Output is correct
35 Correct 704 ms 8916 KB Output is correct
36 Correct 700 ms 8916 KB Output is correct
37 Correct 723 ms 8916 KB Output is correct
38 Correct 716 ms 8916 KB Output is correct
39 Runtime error 17 ms 17860 KB Execution killed with signal 11
40 Halted 0 ms 0 KB -