oj.uz

Submission #200304

# Submission time Handle Problem Language Result Execution time Memory
200304 2020-02-06T09:22:38 Z Nordway Land of the Rainbow Gold (APIO17_rainbow) C++14
11 / 100
 70 ms 1272 KB 
#include<bits/stdc++.h>
#include "rainbow.h"

#define x first
#define y second
#define pb push_back
#define sz(v) (int)v.size()

using namespace std;

const int N=1e3+11;
const int dx[4]={0,0,-1,1};
const int dy[4]={1,-1,0,0};

int n,m;
int x,y;
string s;
bool used[N][N];
bool us[2][200011];
int cnt[200011],p[2][200011];

void init(int R, int C, int sr, int sc, int M, char* S) {
  n=R;
  m=C;
  x=sr,y=sc;
  s=S;
  if(n==2){
    us[sr][sc]=1;
    for(int i=0;i<M;i++){
      if(s[i]=='N')sr--;
      if(s[i]=='S')sr++;
      if(s[i]=='W')sc--;
      if(s[i]=='E')sc++;
      us[sr][sc]=1;
    }
    int lst=0;
    for(int i=1;i<=m;i++){
      int cur=3;
      for(int j=1;j<=2;j++){
        if(used[i][j])cur^=(1<<(j-1));
      }
      if((lst&cur)==0)cnt[i]=cnt[i-1]+1;
      else cnt[i]=cnt[i-1];
      lst=cur;
    }
    for(int i=1;i<=2;i++){
      for(int j=1;j<=m;j++){
        if(used[i][j]==0)p[i][j]=p[i][j-1];
        else if(used[i][j-1]==1)p[i][j]=p[i][j-1];
        else p[i][j]=p[i][j-1]+1;
      }
    }
  }
}

void dfs(int r,int c){
  used[r][c]=1;
  //cout<<r<<" "<<c<<endl;
  for(int i=0;i<4;i++){
    int nx=r+dx[i],ny=c+dy[i];
    if(used[nx][ny])continue;
    dfs(nx,ny);
  }
}

int colour(int ar, int ac, int br, int bc) {
  if(max(n,m)<=50){
    int ans=0;
    for(int i=0;i<=n+1;i++){
      for(int j=0;j<=m+1;j++){
        if(ar<=i&&i<=br&&ac<=j&&j<=bc){
          used[i][j]=0;
          continue;
        }
        used[i][j]=1;
      }
    }
    int sr=x,sc=y;
    used[sr][sc]=1;
    for(int i=0;i<sz(s);i++){
      if(s[i]=='N')sr--;
      if(s[i]=='S')sr++;
      if(s[i]=='W')sc--;
      if(s[i]=='E')sc++;
      used[sr][sc]=1;
    }
   /* for(int i=0;i<=n+1;i++){
      for(int j=0;j<=m+1;j++){
        cout<<used[i][j];
      }
      cout<<endl;
    }*/
    for(int i=ar;i<=br;i++){
      for(int j=ac;j<=bc;j++){
        if(!used[i][j]){
          dfs(i,j);
          //cout<<endl;
          ans++;
        }
      }
    }
    return ans;
  }
  else if(n==2){
    if(ar==br){
      return p[ar][bc]-p[ar][ac-1];
    }
    else{
      return cnt[bc]-cnt[ac-1];
    }
  }
}

Compilation message

rainbow.cpp: In function 'int colour(int, int, int, int)':
rainbow.cpp:112:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 376 KB Output is correct
2 Correct 14 ms 376 KB Output is correct
3 Correct 17 ms 376 KB Output is correct
4 Correct 17 ms 376 KB Output is correct
5 Correct 16 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 19 ms 376 KB Output is correct
12 Correct 19 ms 376 KB Output is correct
13 Correct 15 ms 376 KB Output is correct
14 Correct 18 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Runtime error 6 ms 888 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Incorrect 6 ms 536 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 376 KB Output is correct
2 Correct 14 ms 376 KB Output is correct
3 Correct 17 ms 376 KB Output is correct
4 Correct 17 ms 376 KB Output is correct
5 Correct 16 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 19 ms 376 KB Output is correct
12 Correct 19 ms 376 KB Output is correct
13 Correct 15 ms 376 KB Output is correct
14 Correct 18 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Incorrect 70 ms 1272 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 376 KB Output is correct
2 Correct 14 ms 376 KB Output is correct
3 Correct 17 ms 376 KB Output is correct
4 Correct 17 ms 376 KB Output is correct
5 Correct 16 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 19 ms 376 KB Output is correct
12 Correct 19 ms 376 KB Output is correct
13 Correct 15 ms 376 KB Output is correct
14 Correct 18 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Incorrect 70 ms 1272 KB Output isn't correct
19 Halted 0 ms 0 KB -