C program to print the number pattern. 1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
C Programming Language / Loop control in C Language
2971Program:
#include <stdio.h> int main() { int i=1,j; while (i <= 5) { j=1; while (j <= i ) { printf("%d ",j); j++; } printf("\n"); i++; } return 0; }
Output:
1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 Press any key to continue . . .
Explanation:
In this program, nested while loop is used to print the pattern. The outermost loop runs 5 times and for every loop, the innermost loop runs i times which is 1 at first, meaning only "1" is printed, then on the next loop it's 2 numbers printing "1 2" and so on till 5 iterations of the loop executes, printing "1 2 3 4 5". This way, the given number pattern is printed.
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