Submission #940723

#	Time	Username	Problem	Language	Result	Execution time	Memory
940723		shenfe1	Art Class (IOI13_artclass)	C++17	8 / 100	44 ms	3656 KiB

artclass

#include <bits/stdc++.h>
 
#pragma optimize("Ofast")
#pragma target("avx2")
 
using namespace std;
 
#define ll long long
#define ld long double
#define pb push_back
#define pf push_front
#define pii pair<int,int>
#define all(v) v.begin(),v.end()
#define F first
#define S second
#define mem(a,i) memset(a,i,sizeof(a))
#define sz(s) (int)s.size()
#define y1 yy
#define ppb pop_back
#define lb lower_bound
#define ub upper_bound
#define gcd(a,b) __gcd(a,b)
#define in insert
// #define int ll
 
const int MAX=500+15;
const ll inf=1e9;  
const int mod=1e9+7;
const int mod1=1e9+9;
const ld eps=1e-9;
 
int dx[8]={1,0,-1,0,1,-1,-1,1};
int dy[8]={0,1,0,-1,1,-1,1,-1};
 
int binpow(int a,int n){
  if(!n)return 1;
  if(n%2==1)return a*binpow(a,n-1);
  int k=binpow(a,n/2);
  return k*k;
}
 
#include "artclass.h"



int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
  ld sum=0;
  for(int i=0;i<H;i++){
    for(int j=0;j<W;j++){
      if(i)sum+=abs(R[i][j]-R[i-1][j])+abs(G[i][j]-G[i-1][j])+abs(B[i][j]-B[i-1][j]);
      if(j)sum+=abs(R[i][j]-R[i][j-1])+abs(G[i][j]-G[i][j-1])+abs(B[i][j]-B[i][j-1]);
      if(i&&j)sum+=abs(R[i][j]-R[i-1][j-1])+abs(G[i][j]-G[i-1][j-1])+abs(B[i][j]-B[i-1][j-1]);
    }
  }
  sum/=(W*(H-1)+H*(W-1));
  // cout<<sum<<"\n";
  if(sum<=51)return 4;
  if(sum>=188)return 3;
  sum=0;
  for(int i=0;i<H;i++){
    for(int j=0;j<W;j++){
      sum+=R[i][j]+G[i][j]+B[i][j];
    }
  }
  sum/=H*W;
  // cout<<sum<<"\n";
  if(sum<=334)return 2;
  return 1;
}

Compilation message (stderr)

artclass.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    3 | #pragma optimize("Ofast")
      | 
artclass.cpp:4: warning: ignoring '#pragma target ' [-Wunknown-pragmas]
    4 | #pragma target("avx2")
      |

• Subtask 1: 8 / 100