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View Compilation Error

0_0_19253848_4428.c: In function 'main':
0_0_19253848_4428.c:6:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for (int i = 1; i < n; i++)
     ^
0_0_19253848_4428.c:6:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_19253848_4428.c:7:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int j = 1; j <= n - i; j++)
         ^
0_0_19253848_4428.c:9:14: error: redefinition of 'i'
     for (int i = 2; i < n; i++)
              ^
0_0_19253848_4428.c:6:14: note: previous definition of 'i' was here
     for (int i = 1; i < n; i++)
              ^
0_0_19253848_4428.c:9:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for (int i = 2; i < n; i++)
     ^
0_0_19253848_4428.c:13:14: error: redefinition of 'i'
     for (int i = 1; i <= n; i++)
              ^
0_0_19253848_4428.c:9:14: note: previous definition of 'i' was here
     for (int i = 2; i < n; i++)
              ^
0_0_19253848_4428.c:13:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for (int i = 1; i <= n; i++)
     ^


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