Submission #866290

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
866290	2023-10-25 19:07:32	Dec0Dedd	Boat (APIO16_boat)	C++14	100 / 100	420 ms	4448 KiB

boat

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 510;
const int MOD = 1e9+7;
ll a[N], b[N], l[2*N+1], dp[N][2*N+1], iv[N], n;
int main() {
    cin>>n;
    iv[1]=1;
    for (int i=2; i<N; ++i) iv[i]=(iv[MOD%i]*(MOD-MOD/i))%MOD;
    vector<int> v;
    for (int i=1; i<=n; ++i) {
        cin>>a[i]>>b[i];
        v.push_back(a[i]), v.push_back(b[i]+1);
    }
    sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()), v.end());
    int sz=v.size();
    for (int i=1; i<=n; ++i) {
        a[i]=upper_bound(v.begin(), v.end(), a[i])-v.begin();
        b[i]=upper_bound(v.begin(), v.end(), b[i])-v.begin();
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 22 / 22
• Subtask 3: 27 / 27
• Subtask 4: 42 / 42