View Compilation Error

0_0_14929160_32259.c: In function 'main':
0_0_14929160_32259.c:44:16: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
                for( int i = 0; i <= 18; ++i )
                ^
0_0_14929160_32259.c:44:16: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code