View Compilation Error

0_0_14012890_7448.c: In function 'dfs':
0_0_14012890_7448.c:12:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for(int k = 0; k<4; k++)
     ^
0_0_14012890_7448.c:12:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_14012890_7448.c: In function 'main':
0_0_14012890_7448.c:43:9: error: expected expression before '/' token
         //map[i][j] = '#';
         ^