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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int n, col, row, val;
  5.     printf("Provide value of N: ");
  6.     scanf("%d", &n);
  7.     for (row = 0; row < n; row++) {
  8.     	val = 0;
  9.     	for (col = 0; col <= row; col++) {
  10.     		val += 2;
  11.     		printf("%d ", val);
  12.     	}
  13.         for (col = 0; col < row; col++) {
  14.         	val -= 2;
  15.         	printf("%d ", val);
  16.         }
  17.         printf("\n");
  18.     }
  19.     return 0;
  20. }
Success #stdin #stdout 0s 5440KB
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5
stdout
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Provide value of N: 2 
2 4 2 
2 4 6 4 2 
2 4 6 8 6 4 2 
2 4 6 8 10 8 6 4 2
https://ideone.com/j6xHZE
language:
C (gcc 8.3)
created:
3 years ago
visibility:
secret

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