View Compilation Error

0_0_29251166_20405.c: In function 'main':
0_0_29251166_20405.c:13:2: error: unknown type name 'bool'
  bool pa=true;
  ^
0_0_29251166_20405.c:13:10: error: 'true' undeclared (first use in this function)
  bool pa=true;
          ^
0_0_29251166_20405.c:13:10: note: each undeclared identifier is reported only once for each function it appears in
0_0_29251166_20405.c:18:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i=0;i<total;i++){
   ^
0_0_29251166_20405.c:18:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_29251166_20405.c:21:10: error: 'false' undeclared (first use in this function)
     pa = false;
          ^
0_0_29251166_20405.c:90:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for (int i=0;i<1000;i++){
    ^