Submission #858138

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
858138	2023-10-07 13:06:25	mircea_007	Peru (RMI20_peru)	C++17	100 / 100	322 ms	57884 KiB

peru

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#include "peru.h"
#include <set>
#include <deque>
#define magic_sauce inline __attribute__((always_inline))
using ll = long long;
const ll INF = 1e18;
const int MOD = 1e9 + 7;
magic_sauce ll min( ll a, ll b ){ return a < b ? a : b; }
magic_sauce ll max( ll a, ll b ){ return a > b ? a : b; }
int ans_hash( int n, ll v[] ){
  int ret = 0;
  for( int i = 0 ; i < n ; i++ )
    ret = (ret * 23LL + v[i]) % MOD;
  return ret;
}
/*
  ans[i] = min{ ans[max{ i - k, prev_bigger( x ) }] + x | x=v[i]..+INF }
  // echivalent:
  ans[i] = min{ ans[j] + max{ v[j+1..i] } | j=i-k..i-1 }
  // folosim stiva de maxime partiale
 
 
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• Subtask 1: 18 / 18
• Subtask 2: 31 / 31
• Subtask 3: 51 / 51