View Compilation Error

0_0_31931045_27222.cpp: In function 'int main()':
0_0_31931045_27222.cpp:117:12: error: conflicting declaration 'long long int x'
         ll x=n*n-n-maxx*(n-maxx)-m;
            ^
0_0_31931045_27222.cpp:80:13: note: previous declaration as 'int x'
         int x,y;
             ^