View Compilation Error

0_0_13126078_27529.c: In function 'main':
0_0_13126078_27529.c:17:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i = 1; i <= 3; i++)
   ^
0_0_13126078_27529.c:17:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_13126078_27529.c:21:11: error: redefinition of 'i'
   for(int i = 1; i <= 3; i++)
           ^
0_0_13126078_27529.c:17:11: note: previous definition of 'i' was here
   for(int i = 1; i <= 3; i++)
           ^
0_0_13126078_27529.c:21:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i = 1; i <= 3; i++)
   ^