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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.    int arr[20], i, j, size;
  5.  
  6.    printf("\nEnter array size : ");
  7.    scanf("%d", &size);
  8.    k=size;
  9.  
  10.    printf("\nAccept Numbers : ");
  11.    for (i = 0; i < size; i++)
  12.       scanf("%d", &arr[i]);
  13.  
  14.    for (i = 0; i < size; i++) {
  15.     for (j=i+1; j< size; j++){
  16.       if (arr[i] == arr[j]){
  17.         printf("%d ",arr[i]);
  18.         i++;
  19.         continue;
  20.       }
  21.       else {
  22.         printf("nothing");
  23.       }
  24.      }
  25.    }
  26. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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8
1 55 55 32 32 15 15 55
compilation info 
prog.c: In function ‘main’:
prog.c:8:4: error: ‘k’ undeclared (first use in this function)
    k=size;
    ^
prog.c:8:4: note: each undeclared identifier is reported only once for each function it appears in
stdout
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Standard output is empty
https://ideone.com/HpqCF6
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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