Program to print the given number pattern
54321
4321
321
21
1
C Programming Language Loop control in C Language (Article) Loop control in C Language (Program)
16381Program:
/** * C program to print number pattern * www.rummanansari.com */ #include int main() { int i, j, N; printf("Enter N: "); scanf("%d", &N); for(i=N; i>=1; i--) { // Logic to print numbers for(j=i; j>=1; j--) { printf("%d", j); } printf("\n"); } return 0; }
Output:
Output Enter N: 5 54321 4321 321 21 1
Explanation:
Logic to print the given number pattern
54321 4321 321 21 1
The above pattern consists of N rows (where N is the total rows to be printed). To since the pattern is in descending order hence, to make things easier we will iterate through rows from N-1 instead of 1-N so now the first row is row5, second row is row4 and last row is row1. Each row contains exactly i columns (where i is the current row number).
The step-by-step descriptive logic of the pattern is:
- To iterate through rows, run an outer loop from N to 1 in decreasing order.
- To print the columns, run an inner loop from i to 1 in decreasing order. Inside this loop print the value of j (where j is the current column number).
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