Submission #336766

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
336766	2020-12-16 18:43:47	super_j6	Abduction 2 (JOI17_abduction2)	C++14	17 / 100	1421 ms	524292 KiB

abduction2

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#include <iostream>
#include <cstdio>
#include <algorithm>
#include <array>
#include <unordered_map>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second
 
typedef array<int, 2> T;
 
T operator+(T x, T y){
  return {x[0] + y[0], x[1] + y[1]};
}
 
const int mxn = 50000, k = 4, w = 2;
const T d[k] = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};
int n[2], q;
int a[2][mxn];
unordered_map<int, int> dp[k][mxn];
 
int sol(T x, int y){
  for(int i = 0; i < 2; i++) if(x[i] < 0 || x[i] >= n[i]) return 0;
  int ret = 0;
  if(dp[y][x[0]].count(x[1])){
    ret = dp[y][x[0]][x[1]];
  }else if(a[!(y & 1)][x[!(y & 1)]] > a[y & 1][x[y & 1]]){
 
 
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• Subtask 1: 13 / 13
• Subtask 2: 0 / 10
• Subtask 3: 0 / 17
• Subtask 4: 4 / 4
• Subtask 5: 0 / 56