View Compilation Error

0_0_16754552_27139.c: In function 'main':
0_0_16754552_27139.c:9:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i=1; i<=3; i++)
   ^
0_0_16754552_27139.c:9:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_16754552_27139.c:10:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int j=1; j<=3; j++)
    ^
0_0_16754552_27139.c:20:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int i=2; i<=c; i++)
    ^