Jungol_Beginner_도형만들기2

1523 : 별삼각형1

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        int n, m;
        
        n = Integer.parseInt(st.nextToken());
        if (n > 101) {
            bw.write("INPUT ERROR!");
            bw.flush();
            return;
        }
        
        m = Integer.parseInt(st.nextToken());
        if (m < 1 || m > 3) {
            bw.write("INPUT ERROR!");
            bw.flush();
            return;
        }
        
        int i, j;
        
        if (m == 1) {
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= i; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        }
        else if (m == 2) {
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= n - i + 1; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        }
        else if (m == 3) {
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= n - i; j++) {
                    bw.write(" ");
                    bw.flush();
                }
                for (j = 1; j <= 2 * i - 1; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        }
    }
}

크기와 타입을 입력받아 출력하면 되는 문제.

---

1719 : 별삼각형2

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    
        int n, m;
        
        n = Integer.parseInt(st.nextToken());
        if (n > 100 || n % 2 == 0) {
            bw.write("INPUT ERROR!");
            bw.flush();
            return;
        }
        
        m = Integer.parseInt(st.nextToken());
        if (m < 1 || m > 4) {
            bw.write("INPUT ERROR!");
            bw.flush();
            return;
        }
        
        int i, j;
        
        if (m == 1) {
            for (i = 1; i <= n / 2 + 1; i++) {
                for (j = 1; j <= i; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
            for (i = 1; i <= n/2; i++) {
                for (j = 1; j <= (n / 2 + 1) - i; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
                
            
        }
        else if (m == 2) {
            for (i = 1; i <= n / 2 + 1; i++) {
                for (j = 1; j <= (n / 2 + 1) - i; j++) {
                    bw.write(" ");
                    bw.flush();
                }
                for (j = 1; j <= i; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
            
            for (i = 1; i <= n / 2; i++) {
                for (j = 1; j <= i; j++) {
                    bw.write(" ");
                    bw.flush();
                }
                for (j = 1; j <= (n / 2 + 1) - i; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
            
            
        }
        else if (m == 3) {
            for (i = 1; i <= n / 2 + 1; i++) {
                for (j = 1; j <= i - 1; j++) {
                    bw.write(" ");
                    bw.flush();
                }
                for (j = 1; j <= n + 2 - (i * 2); j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
            
            for (i = 1; i <= n / 2; i++) {
                for (j = 1; j <= n / 2 - i; j++) {
                    bw.write(" ");
                    bw.flush();
                }
                for (j = 1; j <= 2 * i + 1; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        }
        else if (m == 4) {
            for (i = 1; i <= n / 2 + 1; i++) {
                for (j = 1; j <= i - 1; j++) {
                    bw.write(" ");
                    bw.flush();
                }
                for (j = 1; j <= n / 2 + 2 - i; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
            
            for (i = 1; i <= n / 2; i++) {
                for (j = 1; j <= n / 2; j++) {
                    bw.write(" ");
                    bw.flush();
                }
                for (j = 1; j <= i + 1; j++) {
                    bw.write("*");
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        } 
    }
}

마찬가지로 크기와 타입을 입력받아 출력하면 되는 문제.

---

1329 : 별삼각형3

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        int n;
        n = Integer.parseInt(st.nextToken());
        if (n > 101 || n < 1 || n % 2 == 0) {
            bw.write(String.format("INPUT ERROR!"));
            bw.flush();
            return;
        }
        
        int i, j;
        
        for (i = 1; i <= n / 2 + 1; i++) {
            for (j = 1; j <= i - 1; j++) {
                bw.write((" "));
                bw.flush();
            }
            for (j = 1; j <= i * 2 - 1; j++) {
                bw.write(("*"));
                bw.flush();
            }
            bw.write(("\n"));
            bw.flush();
        }
        for (i = 1; i <= n / 2; i++) {
            for (j = 1; j <= n / 2 - i; j++) {
                bw.write((" "));
                bw.flush();
            }
            for (j = 1; j <= n - i * 2; j++) {
                bw.write(("*"));
                bw.flush();
            }
            bw.write(("\n"));
            bw.flush();
        }
    }
}

크기를 입력받아 출력하면 되는 문제.

---

1641 : 숫자삼각형

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        int n, m;
        
        n = Integer.parseInt(st.nextToken());
        if (n > 100 || n % 2 == 0) {
            bw.write(("INPUT ERROR!"));
            bw.flush();
            return;
        }
        m = Integer.parseInt(st.nextToken());
        if (m < 1 || m > 3) {
            bw.write(("INPUT ERROR!"));
            bw.flush();
            return;
        }
        int i, j;
        int arr[][] = new int [101][101];
        int cnt = 1;
        
        if (m == 1) {
            for (i = 1; i <= n; i++) {
                if (i % 2 != 0) {
                    for (j = 1; j <= i; j++) {
                        arr[i][j] = cnt++;
                    }
                }
                else {
                    for (j = i; j >= 1; j--) {
                        arr[i][j] = cnt++;
                    }
                }
            }
            
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= i; j++) {
                    bw.write(String.format("%d ", arr[i][j]));
                }
                bw.write("\n");
                bw.flush();
            }
        }
        else if (m == 2) {
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= i - 1; j++) {
                    bw.write("  ");
                    bw.flush();
                }
                for (j = 1; j <= (2*n-1) - i * 2 + 2; j++) {
                    bw.write(String.format("%d ", i - 1));
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        }
        else if (m == 3) {
            for (i = 1; i <= n / 2 + 1; i++) {
                for (j = 1; j <= i; j++) {
                    bw.write(String.format("%d ", j));
                    bw.flush();
                }
                bw.write(("\n"));
                bw.flush();
            }
            for (i = 1; i <= n / 2; i++) {
                for (j = 1; j <= n / 2 - i + 1; j++) {
                    bw.write(String.format("%d ", j));
                    bw.flush();
                }
                bw.write(("\n"));
                bw.flush();
            }
        }
    }
}

크기와 타입을 입력받아 숫자로 출력하면 되는 문제.

---

1707 : 달팽이사각형

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    
        int n;        
        n = Integer.parseInt(st.nextToken());
        
        int i, j;
        int arr[][] = new int [101][101];
        int cnt = 0;
        
        for (i = 0; i <= n+1; i++) {
            arr[i][0] = 1;
            arr[0][i] = 1;
            arr[i][n+1] = 1;
            arr[n+1][i] = 1;
        }
        int x,y;
        x=y=1;
        int dir=0;
        int num=1;
        
        for (i = 1; i <= n * n; i++) {
            arr[y][x] = num++;
            if (dir == 0) {
                if (arr[y][x + 1] == 0) x++;
                else {
                    dir = 1;
                    y++;
                }
            }
            else if (dir == 1) {
                if (arr[y + 1][x] == 0) y++;
                else {
                    dir = 2;
                    x--;
                } 
            }
            else if (dir == 2) {
                if (arr[y][x - 1] == 0) x--;
                else {
                    dir = 3;
                    y--;
                } 
            }
            else {
                if (arr[y - 1][x] == 0) y--;
                else {
                    dir = 0;
                    x++;
                } 
            }
        }
        
        for (i = 1; i <= n; i++) {
            for (j = 1; j <= n; j++) {
                bw.write(String.format("%d ", arr[i][j]));
                bw.flush();
            }
            bw.write("\n");
            bw.flush();
        }
    }
}

크기를 입력받아 사각형 달팽이 모양으로 숫자를 출력하면 되는 문제.

---

1337 : 달팽이삼각형

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    
        int n;
        int arr[][] = new int [101][101];
        int i, j;
        int x=0, y=0;
        int cnt = 0;
        
        n = Integer.parseInt(st.nextToken());
        
        for (i = n - 1; i > 0; i -= 3) {
            for (j = 1; j <= i; j++) {
                if (cnt > 9) cnt = 0;
                arr[y++][x++] = cnt++;
            }
            for (j = 1; j <= i; j++) {
                if (cnt > 9) cnt = 0;
                arr[y][x--] = cnt++;
            }
            for (j = 1; j <= i; j++) {
                if (cnt > 9) cnt = 0;
                arr[y--][x] = cnt++;
            }
            y+=2;
            x++;
        }
        if(i==0) {
            if (cnt > 9) cnt = 0;
            arr[y][x] = cnt;
        }
        
        for (i = 0; i < n; i++) {
            for (j = 0; j <= i; j++) {
                bw.write(String.format("%d ", arr[i][j]));;
                bw.flush();
            }
            bw.write("\n");
            bw.flush();
         }
    }
}

크기를 입력받아 삼각형 달팽이 모양으로 숫자를 출력하면 되는 문제.

---

2071 : 파스칼 삼각형

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    
        int n, m;
        int arr[][] = new int [101][101];
        
        n = Integer.parseInt(st.nextToken());
        m = Integer.parseInt(st.nextToken());
    
        int i, j;
        
        if (m == 1) {
            arr[0][1] = 1;
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= i; j++) {
                    arr[i][j] = arr[i - 1][j - 1] + arr[i - 1][j];
                }
            }
            
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= i; j++) {
                    bw.write(String.format("%d ", arr[i][j]));
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        }
        else if (m == 2) {
            arr[n][n] = 1;
            
            for (i = n - 1; i > 0; i--) {
                for (j = 1; j < n * 2; j++) {
                    arr[i][j] = arr[i + 1][j] + arr[i + 1][j + 1];
                }
            }
            
            for (i = 1; i <= n; i++) {
                for (j = 1; j < n * 2; j++) {
                    if (arr[i][j] == 0) {
                        bw.write(" ");
                        bw.flush();
                    }
                    else {
                        bw.write(String.format("%d ", arr[i][j]));
                        bw.flush();                    
                    }
                }
                bw.write("\n");
                bw.flush();
            }
        }
        else if (m == 3) {
            arr[n][n] = 1;
            
            for (i = n-1; i >0; i--) {
                for (j = n; j >= 0; j--) {
                    arr[j][i] = arr[j][i+1] + arr[j + 1][i + 1];
                }
            }
            
            for (i = 1; i <= n; i++) {
                for (j = 1; j <= i; j++) {
                    bw.write(String.format("%d ", arr[i][j]));
                    bw.flush();
                }
                bw.write("\n");
                bw.flush();
            }
        }
    }
}

크기와 타입을 입력받아 파스칼 삼각형 모양으로 출력하면 되는 문제.

---

1331 : 문자마름모

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
     
        int i, j;
        int n;
         
        n = Integer.parseInt(st.nextToken());
         
        int x = n, y = 1;
         
        char arr[][] = new char [201][201];
        char alpha = 'A';
 
        for (i = n - 1; i > 0; i--) {
            for (j = 1; j <= i; j++) {
                if (alpha > 'Z') alpha = 'A';
                arr[y++][x--] = alpha++;
            }
            for (j = 1; j <= i; j++) {
                if (alpha > 'Z') alpha = 'A';
                arr[y++][x++] = alpha++;
            }
            for (j = 1; j <= i; j++) {
                if (alpha > 'Z') alpha = 'A';
                arr[y--][x++] = alpha++;
            }
            for (j = 1; j <= i; j++) {
                if (alpha > 'Z') alpha = 'A';
                arr[y--][x--] = alpha++;
            }
            y++;
        }
         
        if (alpha > 'Z') alpha = 'A';
        arr[y][x] = alpha++;
         
        for (i = 1; i <= n * 2 - 1; i++) {
            for (j = 1; j <= n * 2 - 1; j++) {
                if (arr[i][j] == 0) {
                    bw.write("  ");
                }
                else {
                    bw.write(String.format("%c ", arr[i][j]));  
                }
            }
            bw.write("\n");
            bw.flush();
        }
    }
}

크기를 입력받아 마름모 모양을 역시계방향으로 출력하면 되는 문제.

---

1495 : 대각선 지그재그

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        
        int i, j;
        int n;
        int x, y;
        
        int arr[][] = new int[110][110]; 
        
        n = Integer.parseInt(st.nextToken());
        y=x=1;
        int dir=0;
        int num=1;
        
        for (i = 1; i <= n; i++) {
            for (j = 1; j <= i; j++) {
                if (dir == 0) {
                    arr[y++][x--] = num++;
                }
                else {
                    arr[y--][x++] = num++;
                }
            }
            
            if (dir == 0) {
                x++;
            }
            else {
                y++;
            }
            dir=1-dir;
            
        }    
        if(dir==0) {
            y++;
            x--;
        }
        else { 
            y--;
            x++;
        }
            
        for (i = n - 1; i >= 0; i--) {
            for (j = 1; j <= i; j++) {
                if (dir == 0) {
                    arr[y++][x--] = num++;
                }
                else {
                    arr[y--][x++] = num++;
                }
            }
            
            if (dir == 0) {
                x+=2;
                y--;
            }
            else {
                y+=2;
                x--;
            }
            dir=1-dir;
        }
        
        for (i = 1; i <= n; i++) {
            for (j = 1; j <= n; j++) {
                bw.write(String.format("%d ", arr[i][j]));
                bw.flush();
            }
            bw.write("\n");
            bw.flush();
        }
    }
}

크기를 입력받아 지그재그 모양으로 숫자를 출력하면 되는 문제.

---

2074 : 홀수 마방진

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(in.readLine());
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    
        int arr[][] = new int [101][101];
        int n;
        int i, j;
        
        n = Integer.parseInt(st.nextToken());
        int y,x;
        int num = 1;
        x = n / 2;
        y = 0;
        
        for (i = 1; i <= n * n; i++) {
            arr[y][x] = num++;
            if (arr[(y-1 + n) % n][(x-1 + n) % n] != 0) {
                y=(y+1)%n;            
            }
            else {
                y= (y-1 + n) % n;
                x=(x-1 + n) % n;
                
                
            }
        }
        
        for (i = 0; i < n; i++) {
            for (j = 0; j < n; j++) {
                bw.write(String.format("%d ", arr[i][j]));
                bw.flush();
            }
            bw.write("\n");
            bw.flush();
        }
    }
}

크기를 입력받아 마방진 모양으로 숫자를 출력하면 되는 문제.