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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int i, j, n = 4; // number of rows
  5.  
  6.     for(i = 1; i <= n; i++) {
  7.         for(j = 1; j <= i; j++) {
  8.             printf("%d ", i);
  9.         }
  10.         printf("\n");
  11.     }
  12.  
  13.     return 0;
  14. }
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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1 
2 2 
3 3 3 
4 4 4 4
https://ideone.com/nsCKpQ
language:
C (gcc 8.3)
created:
18 days ago
visibility:
public

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