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  1. #include <stdio.h>
  2.  
  3. void addZerosAt(int * a, int N, int p1, int p2)
  4. {
  5.     if (p1 > p2)
  6.     {
  7.         int p = p1;
  8.         p1 = p2;
  9.         p2 = p;
  10.     }
  11.     for(int i = N+1; i >= p1; --i)
  12.     {
  13.         if (i > p2) a[i] = a[i-2];
  14.         else a[i] = a[i-1];
  15.     }
  16.     a[p1] = a[p2] = 0;
  17. }
  18.  
  19.  
  20. int main(int argc, const char * argv[])
  21. {
  22.     int a[20] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  23.     for(int i = 0; i < 15; ++i) printf("%2d ",a[i]); puts("");
  24.     addZerosAt(a,15,5,12);
  25.     for(int i = 0; i < 17; ++i) printf("%2d ",a[i]); puts("");
  26. }
  27.  
Success #stdin #stdout 0s 4792KB
comments (?)
stdin 
Standard input is empty
stdout 
 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 
 1  2  3  4  5  0  6  7  8  9 10 11  0 12 13 14 15
https://ideone.com/Nhgrqt
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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