View Compilation Error

0_0_18282524_31000.cpp: In function 'int main()':
0_0_18282524_31000.cpp:40:14: error: jump to case label [-fpermissive]
         case 2:
              ^
0_0_18282524_31000.cpp:34:17: error:   crosses initialization of 'int max'
             int max=ans;
                 ^
0_0_18282524_31000.cpp:45:9: error: jump to case label [-fpermissive]
         default:
         ^
0_0_18282524_31000.cpp:34:17: error:   crosses initialization of 'int max'
             int max=ans;
                 ^