제출 #222006

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
222006	2020-04-11 18:32:19	Haunted_Cpp	Kronican (COCI16_kronican)	C++17	100 / 100	1059 ms	4480 KiB

kronican

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/*
 author: Haunted_Cpp
 "Persistence guarantees that results are inevitable"
*/
 
#include <iostream>
#include <algorithm>
#include <vector>
 
#pragma GCC optimize ("Ofast")
#pragma GCC target("fma,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")
 
using namespace std;
 
const int N = 20 + 1;
int dp [1 << N], g [N][N], n, k;
int dfs (int mask) {
  if (__builtin_popcount(mask) <= k) return 0;
  int &res = dp[mask];
  if (res) return res;
  res = 1e9;
  for (int i = 0; i < n; i++) {
    if (((mask >> i) & 1) == 0) continue;
    for (int j = i + 1; j < n; j++) {
      if (((mask >> j) & 1) == 0) continue;
      res = min (res, g[i][j] + dfs (mask ^ (1 << i)));
      res = min (res, g[j][i] + dfs (mask ^ (1 << j)));
 
 
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• Subtask 1: 100 / 100