Submission #724204

#	Time	Username	Problem	Language	Result	Execution time	Memory
724204		Urvuk3	Art Class (IOI13_artclass)	C++17	51 / 100	97 ms	25656 KiB

artclass

#include "artclass.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long
const int INF=1e9;
const ll LINF=1e18;
#define fi first
#define se second
#define pii pair<int,int>
#define mid ((l+r)/2)
#define sz(a) (int((a).size()))
#define all(a) a.begin(),a.end()
#define endl "\n"
#define pb push_back

void PRINT(int x) {cerr << x;}
void PRINT(ll x) {cerr << x;}
void PRINT(double x) {cerr << x;}
void PRINT(char x) {cerr << '\'' << x << '\'';}
void PRINT(string x) {cerr << '\"' << x << '\"';}
void PRINT(bool x) {cerr << (x ? "true" : "false");}

template<typename T,typename V>
void PRINT(pair<T,V>& x){
    cerr<<"{";
    PRINT(x.fi);
    cerr<<",";
    PRINT(x.se);
    cerr<<"}";
}
template<typename T>
void PRINT(T &x){
    int id=0;
    cerr<<"{";
    for(auto _i:x){
        cerr<<(id++ ? "," : "");
        PRINT(_i);
    }
    cerr<<"}";
}
void _PRINT(){
    cerr<<"]\n";
}
template<typename Head,typename... Tail>
void _PRINT(Head h,Tail... t){
    PRINT(h);
    if(sizeof...(t)) cerr<<", ";
    _PRINT(t...);
}

#define Debug(x...) cerr<<"["<<#x<<"]=["; _PRINT(x)

int Hg,Wg;
bool visited[500][500];
int Rg[500][500],Gg[500][500],Bg[500][500];
vector<int> di,dj;
int comps;

bool Valid(int i,int j){
    return (0<=i && i<Hg) && (0<=j && j<Wg);
}

void Dfs(int i,int j){
    visited[i][j]=true;
    for(int d=0;d<4;d++){
        int i1=i+di[d];
        int j1=j+dj[d];
        if(!Valid(i1,j1)) continue;
        ll dif=0;
        dif+=abs(Rg[i][j]-Rg[i1][j1]);
        dif+=abs(Gg[i][j]-Gg[i1][j1]);
        dif+=abs(Bg[i][j]-Bg[i1][j1]);
        if(!visited[i1][j1] && dif<=20){
            Dfs(i1,j1);
        }
    }
}

bool In(int x,int l,int r){
    return (l<=x && x<=r);
}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
    Hg=H,Wg=W;
    for(int i=0;i<500;i++){
        for(int j=0;j<500;j++){
            Rg[i][j]=R[i][j];
            Gg[i][j]=G[i][j];
            Bg[i][j]=B[i][j];
        }
    }
    di={-1,0,1,0};
    dj={0,1,0,-1};
    for(int i=0;i<H;i++){
        for(int j=0;j<W;j++){
            if(!visited[i][j]){
                Dfs(i,j);
                comps++;
            }
        }
    }
    di={-1,1};
    dj={0,0};
    ll Rv=0,Gv=0,Bv=0;
    int greens=0;
    int yellows=0;
    for(int i=0;i<Hg;i++){
        for(int j=0;j<Wg;j++){
            if(R[i][j]-G[i][j]>=30 && R[i][j]-B[i][j]>=30) greens++;
            if(R[i][j]-G[i][j]<=30) yellows++;
            for(int d=0;d<2;d++){
                int i1=i+di[d];
                int j1=j+dj[d];
                if(Valid(i1,j1)){
                    Rv+=abs(R[i][j]-R[i1][j1]);
                    Gv+=abs(G[i][j]-G[i1][j1]);
                    Bv+=abs(B[i][j]-B[i1][j1]);
                }
            }
        }
    }
    di={0,0};
    dj={-1,1};
    ll Rh=0,Gh=0,Bh=0;
    for(int i=0;i<Hg;i++){
        for(int j=0;j<Wg;j++){
            for(int d=0;d<2;d++){
                int i1=i+di[d];
                int j1=j+dj[d];
                if(Valid(i1,j1)){
                    Rh+=abs(R[i][j]-R[i1][j1]);
                    Gh+=abs(G[i][j]-G[i1][j1]);
                    Bh+=abs(B[i][j]-B[i1][j1]);
                }
            }
        }
    }
    di={-1,0,1,0};
    dj={0,1,0,-1};
    ll similar=0;
    ll disimilar=0;
    vector<ll> ret={Rv,Gv,Bv,Rh,Gh,Bh};
    //Debug(greens+yellows);
    //Debug(comps);
    bool b1=true;
    for(int i=0;i<3;i++) b1&=In(ret[i],6,20);
    b1|=(comps<11503);
    if(b1) return 1;
    for(int i=0;i<sz(ret);i++) ret[i]/=(H*W);
    bool b4=true;
    for(int i=0;i<6;i++) b4&=In(ret[i],0,10);
    if(b4) return 4;
    bool b3=true;
    for(int i=0;i<6;i++) b3&=In(ret[i],33,100);
    if(b3) return 3;
    return 2;
}

Compilation message (stderr)

artclass.cpp: In function 'int style(int, int, int (*)[500], int (*)[500], int (*)[500])':
artclass.cpp:142:8: warning: unused variable 'similar' [-Wunused-variable]
  142 |     ll similar=0;
      |        ^~~~~~~
artclass.cpp:143:8: warning: unused variable 'disimilar' [-Wunused-variable]
  143 |     ll disimilar=0;
      |        ^~~~~~~~~

• Subtask 1: 51 / 100