View Compilation Error

0_0_25935102_31103.cpp: In function 'void work()':
0_0_25935102_31103.cpp:30:2: error: expected ';' before 'for'
  for (int i = 1; i <= m; i ++){
  ^
0_0_25935102_31103.cpp:30:18: error: 'i' was not declared in this scope
  for (int i = 1; i <= m; i ++){
                  ^