View Compilation Error

0_0_16128452_18149.c: In function 'DFS':
0_0_16128452_18149.c:10:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for(int i = 0; i < n; i++){
     ^
0_0_16128452_18149.c:10:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_16128452_18149.c: In function 'main':
0_0_16128452_18149.c:22:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i = 0; i < n; i++){
         ^