Submission #799583

#	Time	Username	Problem	Language	Result	Execution time	Memory
799583		laurasofia	A Difficult(y) Choice (BOI21_books)	C++14	Compilation error	0 ms	0 KiB

books

#include <bits/stdc++.h>

#include "books.h"

#define vv vector<int>
#define FOR(i, a, n) for (int i = a; i < n; i++)
#define mkp make_pair
#define INF 1000000003
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

    vector<long long> v(N);
    int y=A/K;
    int idx;
    int l=1;
    int r=N;

    while (l+1<r){
        int m=(l+r)>>1;
        int k=skim(m);
        if (k>y)r=m;
        else l=m;
    }
    vv v(K+1);
    long long sum=0;
    FOR(i,0,K){
        if (l+i>N){
            impossible();
            return;
        }
        v[i]=skim(l+i);
        sum+=v[i];
    }
    if (sum>=A && sum<=2*A){
        vv ans;
        FOR(i,0,K)ans.push_back(l+i);
        answer(ans);
        return;
    }
    if (l+K<=N){
        sum+=skim(l+K);
        sum-=v[0];
        l++;
        if (sum>=A && sum<=2*A){
        vv ans;
        FOR(i,0,K)ans.push_back(l+i);
        answer(ans);
        return;
        }
    }


    impossible();
}

Compilation message (stderr)

books.cpp: In function 'void solve(int, int, long long int, int)':
books.cpp:35:8: error: conflicting declaration 'std::vector<int> v'
   35 |     vv v(K+1);
      |        ^
books.cpp:23:23: note: previous declaration as 'std::vector<long long int> v'
   23 |     vector<long long> v(N);
      |                       ^
books.cpp:25:9: warning: unused variable 'idx' [-Wunused-variable]
   25 |     int idx;
      |         ^~~