Submission #906885

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
906885	2024-01-15 04:30:45	daoquanglinh2007	Bootfall (IZhO17_bootfall)	C++17	100 / 100	529 ms	5208 KiB

bootfall

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#include <bits/stdc++.h>
using namespace std;
#define int long long
const int NM = 500, MOD = 1e15+7;
int N, a[NM+5], sum = 0, dp[NM*NM+5], dp0[NM*NM+5], K = 0;
bool ok[NM*NM+5];
void add(int x){
  for (int i = NM*NM; i >= x; i--)
    dp[i] = (dp[i]+dp[i-x])%MOD;
}
void remove(int x){
  for (int i = x; i <= NM*NM; i++)
    dp[i] = (dp[i]+MOD-dp[i-x])%MOD;
}
void solve(int t){
  for (int i = 0; i <= NM*NM; i++) dp[i] = dp0[i];
  remove(a[t]);
  
  for (int i = 1; i <= NM*NM; i++)
    if ((sum-a[t]+i)%2 != 0 || (sum-a[t]+i)/2-i < 0 || !dp[(sum-a[t]+i)/2-i]) ok[i] = 0;
}
signed main(){
  ios_base::sync_with_stdio(0);
 
 
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• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 15 / 15
• Subtask 4: 16 / 16
• Subtask 5: 21 / 21
• Subtask 6: 35 / 35