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View Compilation Error

0_0_34826388_18589.c: In function 'main':
0_0_34826388_18589.c:9:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for(int i=0;i<n;i++)
  ^
0_0_34826388_18589.c:9:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_34826388_18589.c:14:10: error: redefinition of 'i'
  for(int i=2;i<n;i++)
          ^
0_0_34826388_18589.c:9:10: note: previous definition of 'i' was here
  for(int i=0;i<n;i++)
          ^
0_0_34826388_18589.c:14:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for(int i=2;i<n;i++)
  ^
0_0_34826388_18589.c:16:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int x=1;x<i;x++)
   ^
0_0_34826388_18589.c:22:11: error: redefinition of 'i'
   for(int i=0;i<n;i++)
           ^
0_0_34826388_18589.c:14:10: note: previous definition of 'i' was here
  for(int i=2;i<n;i++)
          ^
0_0_34826388_18589.c:22:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i=0;i<n;i++)
   ^
0_0_34826388_18589.c:24:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int x=0;x<=i;x++)
   ^


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