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20250816 baekjoon

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songyc macbook 2025-08-16 21:20:32 +09:00
parent fe4f540812
commit e436dddb74
2 changed files with 41 additions and 1 deletions
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38
code_study/Baekjoon/java/_10026.java
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@ -36,6 +36,42 @@ public class _10026 {
}
return countArea;
}
public static int countAreaDFS(String[] grid, int N){
int[] dx = {1,-1,0,0};
int[] dy = {0,0,1,-1};
boolean[][] visited = new boolean[N][N];
Stack<Integer> sx = new Stack<>();
Stack<Integer> sy = new Stack<>();
int countArea = 0;
for(int x=0; x<N; x++){
for(int y=0; y<N; y++){
if(!visited[y][x]){
visited[y][x] = true;
char color = grid[y].charAt(x);
sx.push(x);
sy.push(y);
while(sx.size() != 0 && sy.size() != 0){
int cx = sx.pop();
int cy = sy.pop();
for(int d=0; d<4; d++){
int nx = cx + dx[d];
int ny = cy + dy[d];
if(0<=nx && nx<N && 0<=ny && ny<N && grid[ny].charAt(nx) == color && !visited[ny][nx]){
sx.add(nx);
sy.add(ny);
visited[ny][nx] = true;
}
}
}
countArea += 1;
}
}
}
return countArea;
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int N = Integer.parseInt(sc.nextLine());
@ -49,7 +85,7 @@ public class _10026 {
sc.close();
int areaCount_normal = countAreaBFS(grid_normal, N);
int areaCount_blindness = countAreaBFS(grid_blindness, N);
int areaCount_blindness = countAreaDFS(grid_blindness, N);
System.out.println(areaCount_normal + " " + areaCount_blindness);
}

4
code_study/Baekjoon/ts/2587.ts Normal file
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@ -0,0 +1,4 @@
export {};
const numList: number[] = require("fs").readFileSync(0,"utf8").toString().trim().split('\n').map(Number).sort((a,b)=>a-b);
console.log([numList.reduce((avg, v) => avg + v, 0) / 5,numList[2]].join('\n'));