Submission #846750

#	Time	Username	Problem	Language	Result	Execution time	Memory
846750		Ahmed57	A Difficult(y) Choice (BOI21_books)	C++17	10 / 100	1 ms	600 KiB

books

#include <bits/stdc++.h>
using namespace std;
#include "books.h"
void solve(int N,int K,long long A,int S){
    int l = 1 , r = N-K+1;
    while(l<=r){
        int mid = (l+r)/2;
        long long val = 0;
        for(int i = mid;i<mid+K;i++){
            val+=skim(i);
        }
        if(val<A){
            l = mid+1;
        }else if(val>2*A){
            r = mid-1;
        }else {
            vector<int> v;
            for(int i = mid;i<mid+K;i++)v.push_back(i);
            answer(v);
            return ;
        }
    }
    impossible();
}

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