Submission #256255

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
256255	2020-08-02 12:27:31	Saboon	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	46.98 / 100	809 ms	262148 KiB

brunhilda

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#include <bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef long long ll;
 
const int maxn = 1e7 + 10;
int cnt[maxn];
int last[maxn], pre[6*maxn], p[6*maxn];
int Q[6*maxn], tail, head;
int dp[maxn];
int main(){
  ios_base::sync_with_stdio(false);
  int m, q;
  cin >> m >> q;
  int sz = 0;
  memset(last, -1, sizeof last);
  for (int i = 0; i < m; i++){
    int x;
    cin >> x;
    p[sz] = x, pre[sz] = last[0], last[0] = sz ++;
  }
  int n = 1000*1000*10;
  int mxm = n+1;
  for (int i = 0; i <= n; i++){
    while (last[i] != -1){
      int idx = last[i];
      if (i > 0)
        cnt[i-p[idx]] ++;
 
 
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• Subtask 1: 15.555555555555555 / 20
• Subtask 2: 10 / 20
• Subtask 3: 21.428571428571427 / 60