View Compilation Error

0_0_36161338_6410.c:5:1: error: unknown type name 'bool'
 bool dfs(int *tmp,int total,int cnt){
 ^
0_0_36161338_6410.c: In function 'dfs':
0_0_36161338_6410.c:10:11: error: 'true' undeclared (first use in this function)
    return true;
           ^
0_0_36161338_6410.c:10:11: note: each undeclared identifier is reported only once for each function it appears in
0_0_36161338_6410.c:12:10: error: 'false' undeclared (first use in this function)
   return false;
          ^