View Compilation Error

0_0_25046062_2139.c:2:1: error: unknown type name 'bool'
 bool s[100001];
 ^
0_0_25046062_2139.c: In function 'main':
0_0_25046062_2139.c:5:29: error: 'false' undeclared (first use in this function)
  for(i=0;i<100001;++i) s[i]=false;
                             ^
0_0_25046062_2139.c:5:29: note: each undeclared identifier is reported only once for each function it appears in
0_0_25046062_2139.c:25:13: error: 'true' undeclared (first use in this function)
   s[a]=s[b]=true;
             ^