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Example 7: Full Pyramid of Numbers

        1
      2 3 2
    3 4 5 4 3
  4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5

C Program

#include int main() { int i, space, rows, k = 0, count = 0, count1 = 0; printf("Enter the number of rows: "); scanf("%d", &rows); for (i = 1; i <= rows; ++i) { for (space = 1; space <= rows - i; ++space) { printf(" "); ++count; } while (k != 2 * i - 1) { if (count <= rows - 1) { printf("%d ", i + k); ++count; } else { ++count1; printf("%d ", (i + k - 2 * count1)); } ++k; } count1 = count = k = 0; printf("\n"); } return 0; }
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