Submission #1205328

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205328		highlighter_math	A Difficult(y) Choice (BOI21_books)	C++20	5 / 100	7 ms	416 KiB

books

#include <bits/stdc++.h>

#include "books.h"

using namespace std;
//
// --- Sample implementation for the task books ---
//
// To compile this program with the sample grader, place:
//     books.h books_sample.cpp sample_grader.cpp
// in a single folder and run:
//     g++ books_sample.cpp sample_grader.cpp
// in this folder.
//

void solve(int N, int K, long long A, int S) {
    // TODO implement this function
    assert(N<=1000 && S==N && K==3);
    vector<long long> X(N);
    for(int i=0;i<N;i++){
        X[i]=skim(i+1);
    }
    long long maximum=A-1;
    vector<int> vec={0,0,0};
    for(int i=0;i<N-2;i++){
        for(int j=i+1;j<N-1;j++){
            long long l=2*A-X[i]-X[j];
            if(X[j+1]>l){
                break;
            }
            int t=upper_bound(X.begin()+j+1,X.end(),l)-X.begin();
            if(maximum<X[i]+X[j]+X[t-1]){
                maximum=X[i]+X[j]+X[t-1];
                vec={i+1,j+1,t};
            }
        }
    }
    if(maximum<A){
        impossible();
        return;
    }
    answer(vec);
}

• 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