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Number Triangle

Read an integer n from standard input and print a number triangle: row i contains the digits 1 through i with no spaces. For example, if the input is 4, print the output shown in Expected Output.

Use a nested loop: the outer loop for the row, the inner loop for the columns.

Expected Output:

1
12
123
1234

= newline. The output ends with a newline — print one after the last line.

Hints4 available
Topics:
Loops
📥 Auto-Input:
4
This input is automatically fed to your program's stdin
1
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Your Output

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Test Cases

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