View Compilation Error

0_0_27844075_11097.c: In function 'get_remainder':
0_0_27844075_11097.c:8:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for (int i = len_a - 1; i >= 0; i--) temp[i] = a[i];
  ^
0_0_27844075_11097.c:8:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_27844075_11097.c:10:11: error: redefinition of 'i'
  for (int i = len_a - 1; i >= 0; i--) {
           ^
0_0_27844075_11097.c:8:11: note: previous definition of 'i' was here
  for (int i = len_a - 1; i >= 0; i--) temp[i] = a[i];
           ^
0_0_27844075_11097.c:10:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for (int i = len_a - 1; i >= 0; i--) {
  ^