public class Solution {
public static void alphaRamp(int n) {
for (int i = 0; i < n; i++) {
char ch = (char) ('A' + i);
for (int j = 0; j <= i; j++) {
System.out.print(ch + " ");
}
System.out.println();
}
}
}
Problem
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Alpha-Ramp
Easy
0/40
Average time to solve is 5m
Contributed by
35 upvotes
Problem statement
Sam is curious about Alpha-Ramp, so he decided to create Alpha-Ramp of different sizes.
An Alpha-Ramp is represented by a triangle, where alphabets are filled from the top in order.
For every value of ‘N’, help sam to return the corresponding Alpha-Ramp.
Example:Input: ‘N’ = 3
Output:
A
B B
C C C
Detailed explanation ( Input/output format, Notes, Images )
Input Format:
The first and only line contains an integer, ‘N’.
Print the pattern as specified.
Constraints :
1 <= N <= 25
Time Limit: 1 sec
Sample Input 1:
3
Sample Output 1:
A
B B
C C C
Sample Input 2 :
1
Sample Output 2 :
A
Sample Input 3 :
4
Sample Output 3 :
A
B B
C C C
D D D D
Hint
Hint 1
Iterate to all the cells.
Approaches (1)
Approach 1
Brute Force
Approach:
The solution to the problem lies in just iterating to all the N*N cells of the pattern and filling every cell.
The steps are as follows :
Function (void) aphaRamp(int ‘N’)
- For loop 'row' in range 0 to N-1.
- For loop 'col' in range 0 to N-1
- Print ('A' + row)
- End the current line.
- For loop 'col' in range 0 to N-1
Time Complexity
O( N * N )
There are two nested loops, so time complexity would be the order of N*N.
Hence the time complexity is O( N * N ).
Space Complexity
O(1)
No extra space is used as we are just printing the pattern.
Code Solution
(100% EXP penalty)
Alpha-Ramp
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Interview problems
ASCII CODE || Python
def alphaRamp(n: int) -> None:
base = 65
for i in range(1,n+1):
for j in range(1,i+1):
print(chr(base),end=" ")
base +=1
print()
pass
4 views
0 replies
0 upvotes
Interview problems
c++ code
void alphaRamp(int n) {
char ch = 'A';
for(char i=0;i<n;i++){
for(int j=0;j<=i;j++){
cout<<ch<<" ";
}
cout<<endl;
ch++;
}
} 25 views
0 replies
0 upvotes
Interview problems
c++ code
void alphaRamp(int n) {
for(char i=0;i<n;i++){
char ch = 'A' +i;
for(int j=0;j<=i;j++){
cout<<ch<<" ";
}
cout<<endl;
}
}
5 views
0 replies
0 upvotes
Interview problems
alphaRamp
void alphaRamp(int n) {
// Write your code here.
for(int i=1;i<=n;i++){
for(int j=1;j<=i;j++){
cout<<char(64+i)<<" ";
}
cout<<endl;
}
}
5 views
0 replies
0 upvotes
Interview problems
C++ logic
void alphaRamp(int n) {
// Write your code here.
for(int i=0;i<n;i++){
char v='A'+i;
for(int ch=0;ch<=i;ch++){
cout<<v<<" ";
}
cout<<endl;
}
}
8 views
0 replies
0 upvotes
Interview problems
java Code
public class Solution {
public static void alphaRamp(int n) {
// Write your code here
for(int i=0;i<n;i++){
char ch = (char)('A' + i);
for(int j =0;j<=i;j++){
System.out.print(ch+" ");
}
System.out.println();
}
}
}
30 views
0 replies
0 upvotes
Interview problems
Alpha-Ramp
def alphaRamp(n: int) -> None:
# Write your solution from here.
for i in range(n):
for j in range(i+1):
print(chr(ord('A')+i),end=" ")
print()
pass
6 views
0 replies
0 upvotes
Interview problems
java code
public class Solution {
public static void alphaRamp(int n) {
// Write your code here
int count =64;
for(int i=1;i<=n;i++){
count++;
for(int j=1;j<=i;j++){
System.out.print((char)count+" ");
}
System.out.println();
}
}
}
22 views
0 replies
0 upvotes
Interview problems
Alpha-Ramp
void alphaRamp(int n) {
for(int i = 0; i<n; i++){
char ch = 'A'+i;
for(int j = 0; j<=i; j++){
cout<<ch<<" ";
}
cout<<endl;
}
}
37 views
0 replies
0 upvotes
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