#include <bits/stdc++.h> #include "books.h" using namespace std; typedef long long ll; void solve(int n, int k, ll s, int c) { vector < int > ans, pos; ll a[n + 1], cur = 0; for(int i = 1; i <= n; i++) a[i] = skim(i); for(int i = 1; i <= n; i++){ if(s <= a[i] && a[i] <= 2 * s){ answer({i}); return; } } for(int i = 1; i <= k; i++) cur += a[i]; if(cur > 2 * s){ impossible(); return; } ll cur2 = 0, cnt = 0; for(int i = n; i >= 1; i--) if(a[i] < s && cnt < k) cur2 += a[i], cnt++, pos.push_back(i); if(cur2 < s){ impossible(); return; } reverse(pos.begin(), pos.end()); for(int i = 1; i <= k; i++){ cur -= a[i]; cur += a[pos.back()]; ans.push_back(pos.back()); if(s <= cur && cur <= 2 * s){ for(int j = i + 1; j <= k; j++) ans.push_back(j); answer(ans); return; } pos.pop_back(); } int x = 5/0; return; }

books.cpp: In function 'void solve(int, int, ll, int)':
books.cpp:37:14: warning: division by zero [-Wdiv-by-zero]
   37 |     int x = 5/0;
      |             ~^~