In this article we will show you, How to write a C Program to Print Inverted Right Triangle Star Pattern with example. And also show you, How to print inverted right triangle pattern with different symbols.
C Program to Print Inverted Right Triangle Star Pattern
This C program allows the user to enter the maximum number of rows he/she want to print as inverted right-angled triangle. We are going to print the inverted right triangle of * symbols until it reaches the user specified rows.
CODE
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/* C Program to Print Inverted Right Triangle Star Pattern */ #include <stdio.h> int main() { int Rows, i, j; printf("Please Enter the Number of Rows: "); scanf("%d", &Rows); printf("\nPrinting Inverted Right Angled Triangle \n \n"); for ( i = Rows ; i > 0 ; i-- ) { for ( j = i ; j > 0 ; j-- ) { printf("* "); } printf("\n"); } return 0; } |
OUTPUT
ANALYSIS
Let us see the Nested for loop
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for ( i = Rows ; i > 0 ; i-- ) { for ( j = i ; j > 0 ; j-- ) { printf("* "); } printf("\n"); } |
Outer Loop – First Iteration
From the above screenshot you can observe that, The value of i is 6 and the condition (i > 0) is True. So, it will enter into second for loop
Inner Loop – First Iteration
The j value is 6 and the condition (j > 0) is True. So, it will start executing the statements inside the loop. Following statement will print * as Output
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printf("* "); |
Following statement will be decrement the Value of Number by 1 using the Decrement Operator
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j-- |
This will happen until the condition inside the inner for loop fails. Next, iteration will start from beginning until both the Inner Loop and Outer loop conditions fails.
C Program to Print Inverted Right Triangle Star Pattern
This program allows the user to enter the Symbol, and number of rows he/she want to print.
CODE
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/* C Program to Print Inverted Right Triangle Star Pattern */ #include <stdio.h> int main() { int Rows, i, j; char Ch; printf("Please Enter any Symbol\n"); scanf("%c", &Ch); printf("Please Enter the Number of Rows: "); scanf("%d", &Rows); printf("\nPrinting Inverted Right Angled Triangle \n \n"); for ( i = Rows ; i > 0 ; i-- ) { for ( j = i ; j > 0 ; j-- ) { printf("%c ", Ch); } printf("\n"); } return 0; } |
OUTPUT
C Program to Print Inverted Right Triangle Pattern using While Loop
In this C program we just replaced the For Loop with the While Loop. I suggest you to refer While Loop article to understand the logic.
CODE
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/* C Program to Print Inverted Right Triangle Star Pattern */ #include <stdio.h> int main() { int Rows, i, j; char Ch; printf("Please Enter any Symbol\n"); scanf("%c", &Ch); printf("Please Enter the Number of Rows: "); scanf("%d", &Rows); printf("\nPrinting Inverted Right Angled Triangle \n \n"); i = Rows; while (i > 0 ) { for ( j = i ; j > 0 ; j-- ) { printf("%c ", Ch); } printf("\n"); i--; } return 0; } |
OUTPUT
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