Submission #567368

#TimeUsernameProblemLanguageResultExecution timeMemory
567368birthdaycakeKitchen (BOI19_kitchen)C++17
20 / 100
16 ms1048 KiB
#include<bits/stdc++.h> #define endl '\n' #define int long long #define mod 1000000007 #define boost ios_base::sync_with_stdio(false), cin.tie(NULL); using namespace std; int dp[200001],a[20001],b[200001]; signed main(){ boost; int n,m,k,sum = 0; cin >> n >> m >> k; for(int i = 0; i < n; i++){ cin >> a[i]; sum += a[i]; } if(k == 1){ for(int j = 0; j < m; j++) cin >> b[j]; dp[0] = 1; for(int i = 0; i < m; i++){ for(int j = 90000; j >= b[i]; j--){ dp[j] += dp[j - b[i]]; } } for(int i = sum; i <= 90000; i++){ if(dp[i]){ cout << i - sum; return 0; } } cout << "Impossible"; return 0; } for(int j = 0; j < m; j++) cin >> b[j]; if(m < k){ cout << "Impossible"; return 0; } for(int i = 0; i < n; i++){ if(a[i] < k){ cout << "Impossible"; return 0; } } int ans = 1e18; for(int i = 0; i < (1 << m); i++){ priority_queue<pair<int,int>>x; int tot = 0, good = 1; for(int j = 0; j < m; j++){ if(i & (1 << j)){ x.push({b[j],j}); tot += b[j]; } } for(int j = 0; j < n; j++){ int cnt = 0; vector<pair<int,int>>d; while(!x.empty() && cnt < k){ auto y = x.top(); x.pop(); if(y.first){ y.first--; if(y.first) d.push_back(y); cnt++; }else{ good = 0; } } if(cnt < k) good = 0; for(int f = 0; f < d.size(); f++){ x.push(d[i]); } } if(good){ if(tot >= sum) ans = min(ans,tot - sum); } } if(ans == 1e18){ cout << "Impossible"; return 0; } cout << ans; return 0; }

Compilation message (stderr)

kitchen.cpp: In function 'int main()':
kitchen.cpp:84:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int>, std::allocator<std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |             for(int f = 0; f < d.size(); f++){
      |                            ~~^~~~~~~~~~
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