Print the pattern by using one loop | Set 2 (Using Continue Statement)

23 Apr, 2021
Given a number n, print triangular pattern. We are allowed to use only one loop.Example: 
Input: 7
Output:
*
* * 
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
We use single for-loop and in the loop we maintain two variables for line count and current star count. If current star count is less than current line count, we print a star and continue. Else we print a new line and increment line count.  
C
Java
Python 3
C#
PHP
Javascript
// C++ program to print a pattern using single// loop and continue statement#include<bits/stdc++.h>using namespace std; // printPattern function to print patternvoid printPattern(int n){    // Variable initialization    int line_no = 1; // Line count     // Loop to print desired pattern    int curr_star = 0;    for (int line_no = 1; line_no <= n; )    {        // If current star count is less than        // current line number        if (curr_star < line_no)        {           cout << "* ";           curr_star++;           continue;        }         // Else time to print a new line        if (curr_star == line_no)        {           cout << "\n";           line_no++;           curr_star = 0;        }    }} // Driver codeint main(){    printPattern(7);    return 0;}
// Java program to print a pattern using single// loop and continue statementimport java.io.*; class GFG {     // printPattern function to print pattern    static void printPattern(int n)    {        // Variable initialization        // Line count        int line_no = 1;             // Loop to print desired pattern        int curr_star = 0;        for ( line_no = 1; line_no <= n;)        {            // If current star count is less than            // current line number            if (curr_star < line_no)            {                System.out.print ( "* ");                curr_star++;                continue;            }                 // Else time to print a new line            if (curr_star == line_no)            {                System.out.println ("");                line_no++;                curr_star = 0;            }        }    }         // Driver code    public static void main (String[] args)    {            printPattern(7);    }} // This code is contributed by vt_m
# Python 3 program to print# a pattern using single# loop and continue statement # printPattern function# to print patterndef printPattern(n):     # Variable initialization    line_no = 1 # Line count     # Loop to print    # desired pattern    curr_star = 0    line_no = 1    while(line_no <= n ):             # If current star count        # is less than current        # line number        if (curr_star < line_no):            print("* ", end = "")            curr_star += 1            continue                 # Else time to print        # a new line        if (curr_star == line_no):            print("")            line_no += 1            curr_star = 0         # Driver codeprintPattern(7) # This code is contributed# by Smitha
// C# program to print a pattern using single// loop and continue statementusing System; class GFG {     // printPattern function to print pattern    static void printPattern(int n)    {        // Variable initialization        // Line count        int line_no = 1;             // Loop to print desired pattern        int curr_star = 0;        for ( line_no = 1; line_no <= n;)        {            // If current star count is less than            // current line number            if (curr_star < line_no)            {                Console.Write ( "* ");                curr_star++;                continue;            }                 // Else time to print a new line            if (curr_star == line_no)            {                Console.WriteLine ();                line_no++;                curr_star = 0;            }        }    }         // Driver code    public static void Main ()    {            printPattern(7);    }} // This code is contributed by vt_m
<?php// php program to print a// pattern using single loop// and continue statement // printPattern function// to print patternfunction printPattern($n){         // Variable initialization    $line_no = 1; // Line count     // Loop to print desired pattern    $curr_star = 0;    for ($line_no = 1; $line_no <= $n    {                 // If current star count is less        // than current line number        if ($curr_star < $line_no)        {            echo "* ";            $curr_star++;            continue;        }         // Else time to print        // a new line        if ($curr_star == $line_no)        {            echo "\n";            $line_no++;            $curr_star = 0;        }    }}     // Driver code    $n=7;    printPattern($n); // This code is contributed by mits?>
<script>      // JavaScript program to print a pattern using single      // loop and continue statement       // printPattern function to print pattern      function printPattern(n)      {               // Variable initialization        var line_no = 1; // Line count         // Loop to print desired pattern        var curr_star = 0;        for (var line_no = 1; line_no <= n; )        {                   // If current star count is less than          // current line number          if (curr_star < line_no)          {            document.write("* ");            curr_star++;            continue;          }           // Else time to print a new line          if (curr_star == line_no)          {            document.write("<br>");            line_no++;            curr_star = 0;          }        }      }       // Driver code      printPattern(7);             // This code is contributed by rdtank.    </script>
Output: 
*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
Time Complexity: O(n)
Auxiliary Space: O(1)Please refer below post for one more approach. Print pattern using only one loopThis article is contributed by Ashish Varshney. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.
Mithun Kumar
Smitha Dinesh Semwal
subhammahato348
rdtank
pattern-printing
School Programming
pattern-printing
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