Submission #863480

#	Time	Username	Problem	Language	Result	Execution time	Memory
863480		HossamHero7	A Difficult(y) Choice (BOI21_books)	C++14	5 / 100	102 ms	1236 KiB

books

#include <bits/stdc++.h>
#include "books.h"
//#include "grader.cpp"
using namespace std;
typedef long long ll;

void solve(int n, int k, long long a, int s) {
    vector<ll> v(n);
    for(int i=0;i<n;i++) v[i] = skim(i+1);
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            int idx = lower_bound(v.begin()+j+1,v.end(),a-v[i]-v[j]) - v.begin();
            if(idx == v.size()) continue;
            if(a <= v[i] + v[j] + v[idx] && v[i] + v[j] + v[idx] <= 2*a) return answer({i+1,j+1,idx+1});
        }
    }
    impossible();
}

Compilation message (stderr)

books.cpp: In function 'void solve(int, int, long long int, int)':
books.cpp:13:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |             if(idx == v.size()) continue;
      |                ~~~~^~~~~~~~~~~

• 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