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C program to print the number pattern. 1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
Programming Example
C program to print the number pattern. 1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
Pattern Programming
#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;
}
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
Press any key to continue . . .
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.