Submission #826729

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
826729	2023-08-16 00:31:53	jamezzz	Cell Automaton (JOI23_cell)	C++17	16 / 100	466 ms	127704 KiB

cell

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#include <bits/stdc++.h>
using namespace std;
#define sf scanf
#define pf printf
typedef pair<int,int> ii;
const int m=4000;
int n,k;
int num[2*m+5];
int grid[m+5][m+5];
int dx[4]={0,1,0,-1},dy[4]={1,0,-1,0};
int main(){
  sf("%d%d",&n,&k);
  memset(grid,-1,sizeof grid);
  queue<ii> q;
  for(int i=0;i<n;++i){
    int x,y;sf("%d%d",&x,&y);
    x+=2000;y+=2000;
    grid[x][y]=0;
    q.push({x,y});
  }
  while(!q.empty()){
    auto[x,y]=q.front();q.pop();
    for(int i=0;i<4;++i){
      int nx=x+dx[i],ny=y+dy[i];
      if(nx<0||ny<0||nx>=m||ny>=m)continue;
      if(grid[nx][ny]!=-1)continue;
 
 
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Compilation message (stderr)

cell.cpp: In function 'int main()':
cell.cpp:16:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |  sf("%d%d",&n,&k);
      |    ^
cell.cpp:20:13: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   int x,y;sf("%d%d",&x,&y);
      |             ^
cell.cpp:41:11: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |   int x;sf("%d",&x);
      |           ^

• Subtask 1: 4 / 4
• Subtask 2: 12 / 12
• Subtask 3: 0 / 8
• Subtask 4: 0 / 8
• Subtask 5: 0 / 17
• Subtask 6: 0 / 25
• Subtask 7: 0 / 26