oj.uz

Submission #223049

# Submission time Handle Problem Language Result Execution time Memory
223049 2020-04-14T15:03:10 Z Autoratch Dango Maker (JOI18_dango_maker) C++14
0 / 100
 2000 ms 384 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 3010;

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

void del(tuple<int,int,int,int> a)
{
    auto [c,x,y,t] = a;
    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}); 
}

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;
        ans++;
        if(t==0)
        {
            auto it = s.find({ch[x-2][y+2],x-2,y+2,1});
            if(it!=s.end()) del({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()) del({ch[x-1][y+1],x-1,y+1,1});
            it = s.find({ch[x][y],x,y,1});
            if(it!=s.end()) del({-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()) del({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()) del({-cv[x+1][y-1],x+1,y-1,0});
            it = s.find({cv[x][y],x,y,0});
            if(it!=s.end()) del({-cv[x][y],x,y,0});
        }
        s.erase({c,x,y,t});
    }
    cout << ans;
}

Compilation message

dango_maker.cpp: In function 'void del(std::tuple<int, int, int, int>)':
dango_maker.cpp:14:10: warning: decomposition declaration only available with -std=c++1z or -std=gnu++1z
     auto [c,x,y,t] = a;
          ^
dango_maker.cpp: In function 'int main()':
dango_maker.cpp:54:14: warning: decomposition declaration only available with -std=c++1z or -std=gnu++1z
         auto [c,x,y,t] = (*s.begin());
              ^

Subtask #1
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Execution timed out 2078 ms 384 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Execution timed out 2078 ms 384 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Execution timed out 2078 ms 384 KB Time limit exceeded
7 Halted 0 ms 0 KB -