View Compilation Error

0_0_25694776_1480.cpp: In function 'int main()':
0_0_25694776_1480.cpp:54:13: error: 'l' was not declared in this scope
         if (l>r) q.push(-ans[i]);
             ^
0_0_25694776_1480.cpp:54:15: error: 'r' was not declared in this scope
         if (l>r) q.push(-ans[i]);
               ^
0_0_25694776_1480.cpp:56:29: error: 'n' was not declared in this scope
         for(int i = 1; i <= n; ++i) {
                             ^
0_0_25694776_1480.cpp: At global scope:
0_0_25694776_1480.cpp:63:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_25694776_1480.cpp:64:1: error: expected declaration before '}' token
 }
 ^