View Compilation Error

0_0_29251154_6220.c: In function 'main':
0_0_29251154_6220.c:8:2: error: unknown type name 'bool'
  bool w ;
  ^
0_0_29251154_6220.c:12:7: error: 'true' undeclared (first use in this function)
   w = true;
       ^
0_0_29251154_6220.c:12:7: note: each undeclared identifier is reported only once for each function it appears in
0_0_29251154_6220.c:14:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i = 1;i<=n;i++){
   ^
0_0_29251154_6220.c:14:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_29251154_6220.c:17:9: error: 'false' undeclared (first use in this function)
     w = false;
         ^