Submission #852904

#	Time	Username	Problem	Language	Result	Execution time	Memory
852904		Trisanu_Das	A Difficult(y) Choice (BOI21_books)	C++17	Compilation error	0 ms	0 KiB

books

#include <bits/stdc++.h>
#include "books.h"
using namespace std;
 
long long a[100005];
 
void solve(int n, int k, long long A, int s) {
    for(int i = 1; i <= k; i++) a[i] = skim(i);
    long long sm = 0;
	for(int i = 1; i <= K; i++){
		sm += a[i];
		if(sm > 2 * A){
			impossible();
			return;
		}
	}
    int l = k, h = n, m, ans;
	while(l <= h){
		m = (l + h)/2;
		if(skim(m) + sm - a[K] <= 2 * A){
			ans = m;
			low = m + 1;
		} 
		else h = mid - 1;
	}
	int cur = k;
	for(int i = ans; i > ans-k; i --){
		sm -= a[cur];
		sm += skim(i);
		cur--;
		if(sm >= A){
			vector<int> anss;
			for(int j = i; j <= ans; j++) anss.push_back(j);
			for(int j = 1; j <= cur; j++) anss.push_back(j);
			answer(anss);
			return;
		}
	}
	impossible();
}

Compilation message (stderr)

books.cpp: In function 'void solve(int, int, long long int, int)':
books.cpp:10:22: error: 'K' was not declared in this scope
   10 |  for(int i = 1; i <= K; i++){
      |                      ^
books.cpp:20:23: error: 'K' was not declared in this scope
   20 |   if(skim(m) + sm - a[K] <= 2 * A){
      |                       ^
books.cpp:22:4: error: 'low' was not declared in this scope; did you mean 'pow'?
   22 |    low = m + 1;
      |    ^~~
      |    pow
books.cpp:24:12: error: 'mid' was not declared in this scope
   24 |   else h = mid - 1;
      |            ^~~