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3_Answers_6_4_nested_loops-1

3_Answers_6_4_nested_loops-1 - CIS 15AG Answers Chapter 6...

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CIS 15AG Answers Chapter 6: Repetitions (nested loops) 25. Write a fragment of code that prints 3 rows of 5 asterisks each. ***** ***** ***** 26. Write a function that prints n rows of asterisks. The first row has 2 asterisks, the second 4, the third 6, and so on. Below is the pattern for n = 5 ** **** ****** ******** ********** 1 int i; for ( i = 1; i <= 5; i++ ) printf( "*" ); printf( "\n" ); for ( i = 1; i <= 5; i++ ) printf( "*" ); printf( "\n" ); for ( i = 1; i <= 5; i++ ) printf( "*" ); printf( "\n" ); int i; int row; for ( row = 1; row <= 3; row++ ) { for ( i = 1; i <= 5; i++ ) printf( "*" ); printf( "\n" ); } void printTriangle(int height) { int row; int col; int width; for ( row = 1; row <= height; row++ ) { width = 2 * row ; for ( col = 1; col <= width; col++ ) printf( "*" ); printf( "\n" ); } return; } void printTriangle(int height) { int row; int col; for ( row = 1; row <= height; row++ ) { for ( col = 1; col <= 2 * row ; col++ ) printf( "*" ); printf( "\n" ); } return; } // No width as a local variable, but more operations: 2 * row is being calculated for each asterisk (instead of for each row)
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CIS 15AG Answers Chapter 6: Repetitions (nested loops) 27. Predict the output. int i; int j; for ( i = 1; i <= 3; i++ ) { for ( j = 1; j <= 3; j++ ) printf("%d %d\n", i, j); printf("\n"); } 28. How many asterisks and '\n's are displayed?
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