View Compilation Error

0_0_25023236_4705.cpp: In function 'int main()':
0_0_25023236_4705.cpp:21:23: error: 'maxx' was not declared in this scope
             if(s[m] > maxx)  
                       ^
0_0_25023236_4705.cpp:24:17: error: 'ans' was not declared in this scope
                 ans = m;  
                 ^
0_0_25023236_4705.cpp:27:23: error: 'ans' was not declared in this scope
         printf("%d\n",ans);  
                       ^