oj.uz

Submission #974943

# Submission time Handle Problem Language Result Execution time Memory
974943 2024-05-04T07:34:13 Z oolimry Mars (APIO22_mars) C++17
14 / 100
 17 ms 4280 KB 
#include <bits/stdc++.h>
using namespace std;
#define sz(x) (int) (x).size()
#define all(x) (x).begin(), (x).end()
#define show(x) cerr << #x << " is " << x << endl;
#define show2(x,y) cerr << #x << " is " << x << " " << #y << " is " << y << endl;
#define show3(x,y,z) cerr << #x << " is " << x << " " << #y << " is " << y << " " << #z << " is " << z << endl;
#define showlist(x) cerr << #x << " is "; for(auto p : x) cerr << p << " "; cerr << endl;
typedef pair<int,int> ii;

/// attempt 3 store number of connected components?
/// push the values up to the LHS 3x3 square and then process the border information

int grid[45][45];
int ccNumber[45][45];
map<ii, vector<ii> > adj;
int CNTBUFFER = 10; ///bits used just to store the size
int ccCounter = 0;
void resetgrid(){
  ccCounter = 1;
  adj.clear();
  for(int i = 0;i < 45;i++) for(int j = 0;j < 45;j++) grid[i][j] = 0;
  for(int i = 0;i < 45;i++) for(int j = 0;j < 45;j++) ccNumber[i][j] = 0;
}

void dfs(int i, int j){
  if(i < 0 or j < 0) return;
  if(grid[i][j] == 0) return;

  grid[i][j] = 0;
  ccNumber[i][j] = ccCounter;

  for(ii cell : adj[ii(i,j)]) dfs(cell.first,cell.second);
  dfs(i+1,j);
  dfs(i-1,j);
  dfs(i,j+1);
  dfs(i,j-1);
} 

///return the layer, and the position in that layer
ii layer(int i, int j){
  int L = max(i,j);
  int pos = abs(i - L) + abs(j - 0);
  return {L,pos};
}

vector<ii> cellsOnLayer(int L){
  vector<ii> cells;
  for(int j = 0;j <= L;j++) cells.push_back({L,j});
  for(int i = L-1;i >= 0;i--) cells.push_back({i,L});
  return cells;
}

string writeNumber(int cnt){
  string res = string(100 ,'0');
  for(int p = 0;p < 100;p++){
    if(cnt % 2 == 1) res[p] = '1';
    cnt /= 2;
  }
  return res;
}

void orTo(string &a, string b){
  for(int p = 0;p < 100;p++){
    if(b[p] == '1') a[p] = '1';
  }
}

struct cornerInfo{
  int internalComponents = 0;
  vector<int> border;
};

string cornerInfoToString(cornerInfo C){
  string res = writeNumber(C.internalComponents);

  int b = CNTBUFFER;
  for(int x : C.border){
    if(x == 0) b++; ///write 0 there
    else{
      res[b] = '1'; b++; ///write 1 to mark it as 1

      for(int bit = 0;bit < 5;bit++){
        if(x % 2 == 1) res[b] = '1';
        x /= 2;
        b++;
      }
    }
  }

  return res;
}

cornerInfo stringToCornerInfo(string s, int szOfBorder){
  cornerInfo C;

  for(int b = 9;b >= 0;b--){
    C.internalComponents *= 2;
    if(s[b] == '1') C.internalComponents++;
  }

  int b = CNTBUFFER;
  while(sz(C.border) < szOfBorder){
    if(s[b] == '0'){
      C.border.push_back(0);
      b++;
    }
    else{
      b++;
      int cc = 0;
      for(int bit = 0;bit < 5;bit++){
        if(s[b] == '1') cc += (1<<bit);
        b++;
      }

      C.border.push_back(cc);
    }
  }

  return C;
}



string process(vector <vector<string>> a, int I, int J, int K, int n){
  string res = string(100,'0');

  /* testing cornerInfo conversion
    	cornerInfo C; C.internalComponents = 4; C.border = {1,0,3,0,4};
    	string S = cornerInfoToString(C); show(S);
    	C = stringToCornerInfo(S, 5); show(C.internalComponents); showlist(C.border);
    	return res;
    	*/

  //cerr << I << " " << J << " " << K << endl;

  if(K == 0){ ///first run
    for(int i = 0;i <= 2;i++){
      for(int j = 0;j <= 2;j++){
        if(a[i][j][0] == '1'){
          a[i][j] = string(100, '0');
          ii info = layer(I+i, j+J);

          a[i][j][info.second] = '1';
        }
        else a[i][j] = string(100, '0');
      }
    }

    if(I == 0 and J == 0){		
      cornerInfo C; C.internalComponents = 0;
      if(a[0][0][0] == '1') C.border = {1};
      else C.border = {0};

      a[0][0] = cornerInfoToString(C);
    }
  }

  if(I == 0 and J == 0){ /// do the terrible graph thing
    resetgrid();

    int layer0 = K*2;
    int layer1 = layer0 + 1;
    int layer2 = layer1 + 1;

    auto layer0cells = cellsOnLayer(layer0);
    auto layer1cells = cellsOnLayer(layer1);
    auto layer2cells = cellsOnLayer(layer2);

    cornerInfo C = stringToCornerInfo(a[0][0], sz(layer0cells));


    string layer1String = string(100, '0');
    string layer2String = string(100, '0');

    for(int i = 0;i <= 2;i++){
      for(int j = 0;j <= 2;j++){
        if(i == 0 and j == 0) continue;

        if(i == 2 or j == 2) orTo(layer2String, a[i][j]);
        else orTo(layer1String, a[i][j]);
      }
    }

    map<int, ii> prevSameComponent;
    for(int a = 0;a < sz(layer0cells);a++){
      ii cell = layer0cells[a];
      int cc = C.border[a];
      if(cc != 0) grid[cell.first][cell.second] = 1;

      if(cc != 0 and prevSameComponent.find(cc) != prevSameComponent.end()){
        ii cell2 = prevSameComponent[cc];
        adj[cell].push_back(cell2);
        adj[cell2].push_back(cell);

        //show2(cell.first, cell.second);
        //show2(cell2.first, cell2.second);
      }
      prevSameComponent[cc] = cell;
    }

    for(int a = 0;a < sz(layer1cells);a++){
      ii cell = layer1cells[a];
      if(layer1String[a] == '1') grid[cell.first][cell.second] = 1;
      else grid[cell.first][cell.second] = 0;
    }
    for(int a = 0;a < sz(layer2cells);a++){
      ii cell = layer2cells[a];
      if(layer2String[a] == '1') grid[cell.first][cell.second] = 1;
      else grid[cell.first][cell.second] = 0;
    }

    for(int i = 0;i <= 2*n;i++){
      for(int j = 0;j <= 2*n;j++){
        //cerr << grid[i][j] << " ";
      }
      //cerr << endl;
    }

    for(int i = 0;i <= 2*n;i++) for(int j = 0;j <= 2*n;j++){
      if(grid[i][j] != 0){
        dfs(i,j);
        ccCounter++;
      }
    }

    set<int> borderComponents;
    for(ii cell : layer2cells){
      int cc = ccNumber[cell.first][cell.second];
      if(cc != 0) borderComponents.insert(cc);
    }

    C.internalComponents += ccCounter - sz(borderComponents) - 1;

    /* bad
    		for(int i = 0;i <= 2*n;i++) for(int j = 0;j <= 2*n;j++){
    			int cc = ccNumber[i][j];
    			if(cc != 0 and borderComponents.find(cc) == borderComponents.end()){
    				C.internalComponents++;
    			}
    		}
    		*/

    map<int,int> disc;
    int discCnt = 1;
    for(int x : borderComponents) disc[x] = discCnt++;

    C.border.clear();
    for(ii cell : layer2cells){
      int cc = ccNumber[cell.first][cell.second];
      if(cc == 0) C.border.push_back(0);
      else C.border.push_back(disc[cc]);
    }

    //

    //show(C.internalComponents);
   // showlist(C.border);

    if(K == n-1){ ///final run
      int ans = C.internalComponents + sz(borderComponents);
      res = writeNumber(ans);
    }	
    else{
      ///finally write the cell info
      res = cornerInfoToString(C);
    }
  }
  else{
    for(int i = 0;i <= 2;i++){
      for(int j = 0;j <= 2;j++){
        if(layer(I,J).first == layer(i+I,j+J).first - 2) orTo(res, a[i][j]);
      }
    }
  }



  // cerr << res << endl;


  return res;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct

Subtask #3
0.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -

Subtask #4
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -

Subtask #5
0.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -

Subtask #6
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -

Subtask #7
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -

Subtask #8
0.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -

Subtask #9
0.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -

Subtask #10
0.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4032 KB Output is correct
2 Correct 3 ms 3960 KB Output is correct
3 Correct 6 ms 3964 KB Output is correct
4 Correct 6 ms 3860 KB Output is correct
5 Correct 7 ms 3736 KB Output is correct
6 Correct 6 ms 3736 KB Output is correct
7 Correct 8 ms 3732 KB Output is correct
8 Correct 10 ms 4280 KB Output is correct
9 Correct 10 ms 3960 KB Output is correct
10 Correct 8 ms 3828 KB Output is correct
11 Correct 9 ms 3868 KB Output is correct
12 Correct 11 ms 3668 KB Output is correct
13 Correct 10 ms 3980 KB Output is correct
14 Correct 17 ms 4208 KB Output is correct
15 Runtime error 4 ms 480 KB Execution killed with signal 6
16 Halted 0 ms 0 KB -