View Compilation Error

0_0_17540289_489.c: In function 'main':
0_0_17540289_489.c:16:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int j=0;j<n-1-i;j++)
    ^
0_0_17540289_489.c:16:4: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_17540289_489.c:30:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i = 0; i < n; i++)  
         ^