제출 #223044

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
223044		Autoratch	Dango Maker (JOI18_dango_maker)	C++14	13 / 100	5 ms	512 KiB

dango_maker

#include <bits/stdc++.h>
using namespace std;

const int N = 3010;

int m,n;
char c[N][N];
int v[N][N],h[N][N],dp[N][N];
int cv[N][N],ch[N][N];
bool bm[N][N];
set<tuple<int,int,int,int> > s;

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);

    cin >> m >> n;
    for(int i = 1;i <= m;i++) for(int j = 1;j <= n;j++) cin >> c[i][j];
    for(int i = 1;i <= m;i++) for(int j = 1;j <= n;j++) 
    {
        if(i>2 and c[i-2][j]=='R' and c[i-1][j]=='G' and c[i][j]=='W') v[i][j] = 1;
        if(j>2 and c[i][j-2]=='R' and c[i][j-1]=='G' and c[i][j]=='W') h[i][j] = 1;
    }
    for(int i = 1;i <= m;i++) for(int j = 1;j <= n;j++)
    {
        if(v[i][j]) cv[i][j] = h[i][j]+h[i-1][j+1]+h[i-2][j+2],s.insert({-cv[i][j],i,j,0});
        if(h[i][j]) ch[i][j] = v[i][j]+v[i+1][j-1]+v[i+2][j-2],s.insert({-ch[i][j],i,j,1});
    }
    while(!s.empty())
    {
        auto [c,x,y,t] = (*s.begin());
        if(c==0) break;
        if(t==0)
        {
            auto it = s.find({-ch[x-2][y+2],x-2,y+2,1});
            if(it!=s.end()) ch[x-2][y+2]--,s.erase(it),s.insert({-ch[x-2][y+2],x-2,y+2,1});
            it = s.find({-ch[x-1][y+1],x-1,y+1,1});
            if(it!=s.end()) ch[x-1][y+1]--,s.erase(it),s.insert({-ch[x-1][y+1],x-1,y+1,1});
            it = s.find({-ch[x][y],x,y,1});
            if(it!=s.end()) ch[x][y]--,s.erase(it),s.insert({-ch[x][y],x,y,1});
        }
        else
        {
            auto it = s.find({-cv[x+2][y-2],x+2,y-2,0});
            if(it!=s.end()) cv[x+2][y-2]--,s.erase(it),s.insert({-cv[x+2][y-2],x+2,y-2,0});
            it = s.find({-cv[x+1][y-1],x+1,y-1,0});
            if(it!=s.end()) cv[x+1][y-1]--,s.erase(it),s.insert({-cv[x+1][y-1],x+1,y-1,0});
            it = s.find({-cv[x][y],x,y,0});
            if(it!=s.end()) cv[x][y]--,s.erase(it),s.insert({-cv[x][y],x,y,0});
        }
        s.erase({c,x,y,t});
    }
    cout << s.size();
}

컴파일 시 표준 에러 (stderr) 메시지

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:31:14: warning: decomposition declaration only available with -std=c++1z or -std=gnu++1z
         auto [c,x,y,t] = (*s.begin());
              ^

• Subtask 1: 13 / 13
• Subtask 2: 0 / 20
• Subtask 3: 0 / 67