View Compilation Error

0_0_21776986_20069.cpp: In function 'int main()':
0_0_21776986_20069.cpp:31:13: error: 'maxx' was not declared in this scope
             maxx = 1;
             ^
0_0_21776986_20069.cpp:32:13: error: 'minn' was not declared in this scope
             minn = -1;
             ^
0_0_21776986_20069.cpp:49:12: error: 'flag' was not declared in this scope
         if(flag) printf("yes\n");
            ^
0_0_21776986_20069.cpp: At global scope:
0_0_21776986_20069.cpp:52:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_21776986_20069.cpp:53:1: error: expected declaration before '}' token
 }
 ^