View Compilation Error

0_0_1652298_20090.c: In function `dfs':
0_0_1652298_20090.c:25: error: syntax error before '/' token
0_0_1652298_20090.c: In function `solve':
0_0_1652298_20090.c:54: error: syntax error before '/' token
0_0_1652298_20090.c: In function `main':
0_0_1652298_20090.c:88: error: syntax error before '/' token
0_0_1652298_20090.c:90: error: syntax error before '/' token