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PrintGrid.java
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PrintGrid.java
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/*
printGrid(3, 6) ➞ "
1, 4, 7, 10, 13, 16
2, 5, 8, 11, 14, 17
3, 6, 9, 12, 15, 18
"
printGrid(5, 3) ➞ "
1, 6, 11
2, 7, 12
3, 8, 13
4, 9, 14
5, 10, 15
"
*/
//Solution;
public class Main {
public static void main(String[] args) {
System.out.println(printGridHorizontal(3,6));
System.out.println(printGridVertical(3,6));
}
/*
printGridHorizontal;
1, 2, 3, 4, 5, 6
7, 8, 9, 10, 11, 12
13, 14, 15, 16, 17, 18
*/
public static String printGridHorizontal(int rows, int cols) {
String a = "";
int col = 1;
for(int i=0;i<rows;i++){
for(int j=0;j<cols;j++){
if(j == cols-1){
a += col;
col++;
}else{
a += col + ", ";
col++;
}
}
a += "\n";
}
return a;
}
/*
printGridVertical;
1, 4, 7, 10, 13, 16
2, 5, 8, 11, 14, 17
3, 6, 9, 12, 15, 18
*/
public static String printGridVertical(int rows, int cols) {
StringBuilder sb = new StringBuilder();
for (int i = 1; i <= rows; i++) {
for(int j = 0; j < cols; j++) {
sb.append(i + j * rows);
if (j == cols -1)
sb.append("\n");
else
sb.append(", ");
}
}
return sb.toString().trim();
}
}