Submission #805106

#	Time	Username	Problem	Language	Result	Execution time	Memory
805106		ma_moutahid	Art Class (IOI13_artclass)	C++17	0 / 100	66 ms	12060 KiB

artclass

#include <bits/stdc++.h>
using ll =long long;
ll LINF=1000000000000000000;
int INF=1000000000;
#define pi pair<int,int>
#define pl pair<ll,ll>
#define endl '\n'
#define vi vector<int>
#define vii vector<vector<int>>
#define vl vector<ll>
#define vll vector<vector<ll>>
//#define int ll
using namespace std;

#include "artclass.h"

int margin;
int w,h;
vii g(500,vi(500)),b(500,vi(500)),r(500,vi(500));
int color=0;
vii id(500,vi(500));
bool compare_color(int i,int j,int x, int y){
    int R=r[i][j]-r[x][y];
    int B=b[i][j]-b[x][y];
    int G=g[i][j]-b[x][y];
    int diff=B*B+G*G+R*R;
    return diff<=margin*margin;
}
vii checked(500,vi(500));
void countcolor(int x,int y){
    if(checked[x][y])return;
    checked[x][y]=1;
    if(id[x][y]==0){
        color++;
        id[x][y]=color;
    }
    if(y+1<h){
        bool same= compare_color(x,y,x,y+1);
        if(same){
            id[x][y+1]=id[x][y];
        }
        countcolor(x,y+1);
    }
    if(x+1<w){
        bool same= compare_color(x,y,x+1,y);
        if(same){
            id[x+1][y]=id[x][y];
        }
        countcolor(x+1,y);
    }
}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
    for(int i=0;i<500;i++)for(int j=0;j<500;j++)g[i][j]=G[i][j],b[i][j]=B[i][j],r[i][j]=R[i][j];
    h=H;
    w=W;
    int colors;
    int COLORS;
    //test 1: strict number of colors
    margin =2;
    countcolor(0,0);
    COLORS=color;
    //test 2: not so strict number of colors
    margin =6;
    id=vii(500,vi(500));
    countcolor(0,0);
    colors=color;

    //test 3 : how green
    int sum=0;
    for(int i=0;i<W;i++)for(int j=0;j<H;j++)sum+=G[i][j];
    sum/=h*H;

    int result=0;
    if(COLORS/colors<3){
        return 1;
    }
    if(colors<6)return 4;
    if(sum>150)return 2;
    return 3;
}

Compilation message (stderr)

artclass.cpp: In function 'int style(int, int, int (*)[500], int (*)[500], int (*)[500])':
artclass.cpp:74:9: warning: unused variable 'result' [-Wunused-variable]
   74 |     int result=0;
      |         ^~~~~~

• Subtask 1: 0 / 100