Submission #657601

#	Time	Username	Problem	Language	Result	Execution time	Memory
657601		TimDee	A Difficult(y) Choice (BOI21_books)	C++17	0 / 100	16 ms	208 KiB

books

#include"books.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void solve(int n, int k, ll A, int s) {
	if (s!=n) return;
	vector<ll> a(n);
	for (int i=0; i<n; ++i) a[i]=skim(i+1);
	if (k==3) {

		for (int i=0; i<n; ++i) {
			for (int j=i+1; j<n; ++j) {
				int l=j+1, r=n-1;
				while (l<r) {
					int mid=(l+r)>>1;
					if (1ll*a[i]+1ll*a[j]+1ll*a[mid]<A) l=mid+1;
					else r=mid;
				}
				if (1LL*a[i]+1LL*a[j]+1LL*a[r]<A) continue;
				if (1LL*a[i]+1LL*a[j]+1LL*a[r]<=2*A) {
					answer({i+1,j+1,r+1});
					return;
				}
			}
		}
		impossible();

	}
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20