View Compilation Error

0_0_31644670_15392.cpp:12:2: error: expected initializer before 'int'
  int i = l;
  ^
0_0_31644670_15392.cpp:13:10: error: 'm' was not declared in this scope
  int j = m + 1;
          ^
0_0_31644670_15392.cpp:14:10: error: 'l' was not declared in this scope
  int k = l; 
          ^
0_0_31644670_15392.cpp:15:2: error: expected unqualified-id before 'while'
  while(i <= m && j <= r) {
  ^