View Compilation Error

0_0_29453258_28902.c:20:1: error: unknown type name 'bool'
 bool check(int m) {
 ^
0_0_29453258_28902.c: In function 'check':
0_0_29453258_28902.c:26:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for(int i = 1; i < house; i++) {
     ^
0_0_29453258_28902.c:26:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_29453258_28902.c:36:36: error: 'false' undeclared (first use in this function)
             if(cnt > wifi)  return false;
                                    ^
0_0_29453258_28902.c:36:36: note: each undeclared identifier is reported only once for each function it appears in
0_0_29453258_28902.c:42:12: error: 'true' undeclared (first use in this function)
     return true;
            ^
0_0_29453258_28902.c: In function 'main':
0_0_29453258_28902.c:56:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
             for(int i = 0; i < house; i++)
             ^