Submission #528326

#	Time	Username	Problem	Language	Result	Execution time	Memory
528326		79brue	A Difficult(y) Choice (BOI21_books)	C++14	5 / 100	243 ms	444 KiB

books

#include "books.h"

using namespace std;

typedef long long ll;

int n, k;
ll arr[100002];
int s, lim;

void solve(int N, int K, ll A, int S){
    n = N, k = K, s = S, lim = A;
    for(int i=1; i<=n; i++) arr[i] = skim(i);

    for(int i=1; i<=n; i++){
        int s = i+1, e = n;
        while(s<e){
            if(arr[i] + arr[s] + arr[e] < A) s++;
            else if(arr[i] + arr[s] + arr[e] > A+A) e--;
            else{
                answer(vector<int> {i, s, e});
                return;
            }
        }
    }
    impossible();
}

• 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