Submission #406221

#	Time	Username	Problem	Language	Result	Execution time	Memory
406221		maomao90	A Difficult(y) Choice (BOI21_books)	C++17	5 / 100	241 ms	492 KiB

books

#include <bits/stdc++.h> 
#include "books.h"
using namespace std;

#define mnto(x, y) x = min(x, (__typeof__(x)) y)
#define mxto(x, y) x = max(x, (__typeof__(x)) y)
#define REP(i, s, e) for (int i = s; i < e; i++)
#define RREP(i, s, e) for (int i = s; i >= e; i--)
typedef long long ll;
typedef long double ld;
#define MP make_pair
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
#define MT make_tuple
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define pb emplace_back
typedef vector<int> vi;
typedef vector<ii> vii;

#define INF 1000000005
#define LINF 1000000000000000005
#define MOD 1000000007
#define MAXN 100005

ll x[MAXN];

void solve(int n, int k, ll a, int s) {
	REP (i, 1, n + 1) {
		x[i] = skim(i);
	}
	REP (i, 1, n + 1) {
		REP (j, i + 1, n + 1) {
			ll tmp = x[i] + x[j];
			ll rem = 2 * a - tmp;
			if (rem <= 0) continue;
			int lower = upper_bound(x + 1, x + n + 1, rem) - x - 1;
			if (lower == 0) continue;
			while (lower == i || lower == j) lower--;
			if (lower <= 0) continue;
			if (x[i] + x[j] + x[lower] >= a) {
				vi ans = {i, j, lower};
				answer(ans);
				return;
			}
		}
	}
	impossible();
	return;
}

• Subtask 1: 5 / 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