View Compilation Error

0_0_13810053_25620.c:5:1: error: unknown type name 'bool'
 bool visit[10][10];
 ^
0_0_13810053_25620.c: In function 'dfs':
0_0_13810053_25620.c:22:19: error: 'T' undeclared (first use in this function)
         if (cnt > T) break;
                   ^
0_0_13810053_25620.c:22:19: note: each undeclared identifier is reported only once for each function it appears in
0_0_13810053_25620.c:22:22: error: break statement not within loop or switch
         if (cnt > T) break;
                      ^
0_0_13810053_25620.c:23:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<4;i++)
         ^
0_0_13810053_25620.c:23:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code